fixed memory leak in MemcachedCacheHandler

2025-03-09 22:18:20 +08:00
24 changed files with 190 additions and 576 deletions
--- a/.gitea/workflows/build-dev.yaml
+++ b/.gitea/workflows/build-dev.yaml
@@ -1,80 +0,0 @@
-name: CI
-on:
-  push:
-    branches:
-      - 'dev'
-jobs:
-  build:
-    runs-on: hostinger
-    steps:
-      - name: Checkout sources
-        uses: actions/checkout@v4
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v3
-      - name: Execute Gradle build
-        run: ./gradlew build
-      - name: Prepare Docker image build
-        run: ./gradlew prepareDockerBuild
-      - name: Get project version
-        id: retrieve-version
-        run: ./gradlew -q version >> "$GITHUB_OUTPUT"
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver: docker-container
-      - name: Login to Gitea container registry
-        uses: docker/login-action@v3
-        with:
-          registry: gitea.woggioni.net
-          username: woggioni
-          password: ${{ secrets.PUBLISHER_TOKEN }}
-      -
-        name: Build rbcs Docker image
-        uses: docker/build-push-action@v5.3.0
-        with:
-          context: "docker/build/docker"
-          platforms: linux/amd64,linux/arm64
-          push: true
-          pull: true
-          tags: |
-            gitea.woggioni.net/woggioni/rbcs:vanilla-dev
-          target: release-vanilla
-          cache-from: type=registry,ref=gitea.woggioni.net/woggioni/rbcs:buildx
-      -
-        name: Build rbcs memcache Docker image
-        uses: docker/build-push-action@v5.3.0
-        with:
-          context: "docker/build/docker"
-          platforms: linux/amd64,linux/arm64
-          push: true
-          pull: true
-          tags: |
-            gitea.woggioni.net/woggioni/rbcs:memcache-dev
-          target: release-memcache
-          cache-from: type=registry,ref=gitea.woggioni.net/woggioni/rbcs:buildx
-          cache-to: type=registry,mode=max,compression=zstd,image-manifest=true,oci-mediatypes=true,ref=gitea.woggioni.net/woggioni/rbcs:buildx
-      -
-        name: Build rbcs native Docker image
-        uses: docker/build-push-action@v5.3.0
-        with:
-          context: "docker/build/docker"
-          platforms: linux/amd64
-          push: true
-          pull: true
-          tags: |
-            gitea.woggioni.net/woggioni/rbcs:native-dev
-          target: release-native
-      -
-        name: Build rbcs jlink Docker image
-        uses: docker/build-push-action@v5.3.0
-        with:
-          context: "docker/build/docker"
-          platforms: linux/amd64
-          push: true
-          pull: true
-          tags: |
-            gitea.woggioni.net/woggioni/rbcs:jlink-dev
-          target: release-jlink
-
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -52,8 +52,6 @@ jobs:
          push: true
          pull: true
          tags: |
-            gitea.woggioni.net/woggioni/rbcs:latest
-            gitea.woggioni.net/woggioni/rbcs:${{ steps.retrieve-version.outputs.VERSION }}
            gitea.woggioni.net/woggioni/rbcs:memcache
            gitea.woggioni.net/woggioni/rbcs:memcache-${{ steps.retrieve-version.outputs.VERSION }}
          target: release-memcache
@@ -68,21 +66,11 @@ jobs:
          push: true
          pull: true
          tags: |
+            gitea.woggioni.net/woggioni/rbcs:latest
+            gitea.woggioni.net/woggioni/rbcs:${{ steps.retrieve-version.outputs.VERSION }}
            gitea.woggioni.net/woggioni/rbcs:native
            gitea.woggioni.net/woggioni/rbcs:native-${{ steps.retrieve-version.outputs.VERSION }}
          target: release-native
-      -
-        name: Build rbcs jlink Docker image
-        uses: docker/build-push-action@v5.3.0
-        with:
-          context: "docker/build/docker"
-          platforms: linux/amd64
-          push: true
-          pull: true
-          tags: |
-            gitea.woggioni.net/woggioni/rbcs:jlink
-            gitea.woggioni.net/woggioni/rbcs:jlink-${{ steps.retrieve-version.outputs.VERSION }}-jlink
-          target: release-jlink
      - name: Publish artifacts
        env:
          PUBLISHER_TOKEN: ${{ secrets.PUBLISHER_TOKEN }}
--- a/benchmark/rbcs-filesystem.yml
+++ b/benchmark/rbcs-filesystem.yml
@@ -1,94 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: rbcs-server
-data:
-  rbcs-server.xml: |
-        <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-        <rbcs:server xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
-                     xmlns:rbcs="urn:net.woggioni.rbcs.server"
-                     xmlns:rbcs-memcache="urn:net.woggioni.rbcs.server.memcache"
-                     xs:schemaLocation="urn:net.woggioni.rbcs.server.memcache jpms://net.woggioni.rbcs.server.memcache/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd urn:net.woggioni.rbcs.server jpms://net.woggioni.rbcs.server/net/woggioni/rbcs/server/schema/rbcs-server.xsd"
-        >
-            <bind host="0.0.0.0" port="8080" incoming-connections-backlog-size="128"/>
-            <connection
-                    max-request-size="0xd000000"
-                    idle-timeout="PT15S"
-                    read-idle-timeout="PT30S"
-                    write-idle-timeout="PT30S"/>
-            <event-executor use-virtual-threads="true"/>
-            <cache xs:type="rbcs:fileSystemCacheType" max-age="P7D" enable-compression="false" path="/home/luser/cache" digest="SHA-224"/>
-        </rbcs:server>
-
---
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: rbcs-pvc
-  namespace: default
-spec:
-  accessModes:
-    - ReadWriteOnce
-  storageClassName: local-path
-  resources:
-    requests:
-      storage: 16Gi
---
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: rbcs-deployment
-  labels:
-    app: rbcs
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: rbcs
-  template:
-    metadata:
-      labels:
-        app: rbcs
-    spec:
-      containers:
-        - name: rbcs
-          image: gitea.woggioni.net/woggioni/rbcs:memcache
-          imagePullPolicy: Always
-          command: ["java", "-Dlogback.configurationFile=logback.xml", "-XX:MaxRAMPercentage=75","-jar", "/home/luser/rbcs.jar"]
-          args: ['server', '-c', 'rbcs-server.xml']
-          ports:
-          - containerPort: 8080
-          volumeMounts:
-          - name: config-volume
-            mountPath: /home/luser/rbcs-server.xml
-            subPath: rbcs-server.xml
-          - name: cache-volume
-            mountPath: /home/luser/cache
-          resources:
-            requests:
-              memory: "0.25Gi"
-              cpu: "1"
-            limits:
-              memory: "0.5Gi"
-              cpu: "1"
-      volumes:
-        - name: config-volume
-          configMap:
-            name: rbcs-server
-        - name: cache-volume
-          persistentVolumeClaim:
-            claimName: rbcs-pvc
---
-apiVersion: v1
-kind: Service
-metadata:
-  name: rbcs-service
-spec:
-  type: LoadBalancer
-  ports:
-  - port: 8080
-    targetPort: 8080
-    protocol: TCP
-  selector:
-    app: rbcs
-
--- a/benchmark/rbcs-in-memory.yml
+++ b/benchmark/rbcs-in-memory.yml
@@ -1,77 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: rbcs-server
-data:
-  rbcs-server.xml: |
-        <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-        <rbcs:server xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
-                     xmlns:rbcs="urn:net.woggioni.rbcs.server"
-                     xmlns:rbcs-memcache="urn:net.woggioni.rbcs.server.memcache"
-                     xs:schemaLocation="urn:net.woggioni.rbcs.server.memcache jpms://net.woggioni.rbcs.server.memcache/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd urn:net.woggioni.rbcs.server jpms://net.woggioni.rbcs.server/net/woggioni/rbcs/server/schema/rbcs-server.xsd"
-        >
-            <bind host="0.0.0.0" port="8080" incoming-connections-backlog-size="128"/>
-            <connection
-                    max-request-size="0xd000000"
-                    idle-timeout="PT15S"
-                    read-idle-timeout="PT30S"
-                    write-idle-timeout="PT30S"/>
-            <event-executor use-virtual-threads="true"/>
-            <cache xs:type="rbcs:inMemoryCacheType" max-age="P7D" enable-compression="false" max-size="0x40000000" digest="SHA-224"/>
-        </rbcs:server>
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: rbcs-deployment
-  labels:
-    app: rbcs
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: rbcs
-  template:
-    metadata:
-      labels:
-        app: rbcs
-    spec:
-      containers:
-        - name: rbcs
-          image: gitea.woggioni.net/woggioni/rbcs:memcache
-          imagePullPolicy: Always
-          command: ["java", "-Dlogback.configurationFile=logback.xml", "-XX:MaxRAMPercentage=75","-jar", "/home/luser/rbcs.jar"]
-          args: ['server', '-c', 'rbcs-server.xml']
-          ports:
-          - containerPort: 8080
-          volumeMounts:
-          - name: config-volume
-            mountPath: /home/luser/rbcs-server.xml
-            subPath: rbcs-server.xml
-          resources:
-            requests:
-              memory: "0.5Gi"
-              cpu: "1"
-            limits:
-              memory: "4Gi"
-              cpu: "1"
-      volumes:
-        - name: config-volume
-          configMap:
-            name: rbcs-server
---
-apiVersion: v1
-kind: Service
-metadata:
-  name: rbcs-service
-spec:
-  type: LoadBalancer
-  ports:
-  - port: 8080
-    targetPort: 8080
-    protocol: TCP
-  selector:
-    app: rbcs
-
--- a/benchmark/rbcs-memcache.yml
+++ b/benchmark/rbcs-memcache.yml
@@ -1,118 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: rbcs-server
-data:
-  rbcs-server.xml: |
-        <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-        <rbcs:server xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
-                     xmlns:rbcs="urn:net.woggioni.rbcs.server"
-                     xmlns:rbcs-memcache="urn:net.woggioni.rbcs.server.memcache"
-                     xs:schemaLocation="urn:net.woggioni.rbcs.server.memcache jpms://net.woggioni.rbcs.server.memcache/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd urn:net.woggioni.rbcs.server jpms://net.woggioni.rbcs.server/net/woggioni/rbcs/server/schema/rbcs-server.xsd"
-        >
-            <bind host="0.0.0.0" port="8080" incoming-connections-backlog-size="128"/>
-            <connection
-                    max-request-size="0xd000000"
-                    idle-timeout="PT15S"
-                    read-idle-timeout="PT30S"
-                    write-idle-timeout="PT30S"/>
-            <event-executor use-virtual-threads="true"/>
-            <!--cache xs:type="rbcs:inMemoryCacheType" max-age="P7D" enable-compression="false" max-size="0x10000000" /-->
-            <cache xs:type="rbcs-memcache:memcacheCacheType" max-age="P7D" chunk-size="0x1000" digest="SHA-224">
-                <server host="memcached-service" port="11211" max-connections="256"/>
-            </cache>
-        </rbcs:server>
-
---
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: rbcs-deployment
-  labels:
-    app: rbcs
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: rbcs
-  template:
-    metadata:
-      labels:
-        app: rbcs
-    spec:
-      containers:
-        - name: rbcs
-          image: gitea.woggioni.net/woggioni/rbcs:memcache
-          imagePullPolicy: Always
-          command: ["java", "-Dlogback.configurationFile=logback.xml", "-XX:MaxRAMPercentage=75","-jar", "/home/luser/rbcs.jar"]
-          args: ['server', '-c', 'rbcs-server.xml']
-          ports:
-          - containerPort: 8080
-          volumeMounts:
-          - name: config-volume
-            mountPath: /home/luser/rbcs-server.xml
-            subPath: rbcs-server.xml
-          resources:
-            requests:
-              memory: "0.5Gi"
-              cpu: "1"
-            limits:
-              memory: "0.5Gi"
-              cpu: "3.5"
-      volumes:
-        - name: config-volume
-          configMap:
-            name: rbcs-server
---
-apiVersion: v1
-kind: Service
-metadata:
-  name: rbcs-service
-spec:
-  type: LoadBalancer
-  ports:
-  - port: 8080
-    targetPort: 8080
-    protocol: TCP
-  selector:
-    app: rbcs
---
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: memcached-deployment
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: memcached
-  template:
-    metadata:
-      labels:
-        app: memcached
-    spec:
-      containers:
-      - name: memcached
-        image: memcached
-        args: ["-I", "128m", "-m", "4096", "-t", "1"]
-        resources:
-          requests:
-            memory: "1Gi"
-            cpu: "500m"        # 0.5 CPU
-          limits:
-            memory: "5Gi"
-            cpu: "500m"        # 0.5 CP
---
-apiVersion: v1
-kind: Service
-metadata:
-  name: memcached-service
-spec:
-  type: ClusterIP  # ClusterIP makes it accessible only within the cluster
-  ports:
-  - port: 11211     # Default memcached port
-    targetPort: 11211
-    protocol: TCP
-  selector:
-    app: memcached
--- a/doc/benchmarks.md
+++ b/doc/benchmarks.md
@@ -16,22 +16,22 @@ All test were executed under the following conditions:

 | Cache backend  | CPU                 | CPU quota | Memory quota (GB) | Request size (b) | Client connections | PUT (req/s) | GET (req/s) |
 |----------------|---------------------|-----------|-------------------|------------------|--------------------|-------------|-------------|
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 128              | 10                 | 7867        | 13762       |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 128              | 100                | 7728        | 14180       |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 512              | 10                 | 7964        | 10992       |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 512              | 100                | 8415        | 12478       |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 4096             | 10                 | 4268        | 5395        |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 4096             | 100                | 5585        | 8259        |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 65536            | 10                 | 1063        | 1185        |
-| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 65536            | 100                | 1522        | 1366        |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 128              | 10                 | 11271       | 14092       |             
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 128              | 100                | 16064       | 24201       |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 512              | 10                 | 11504       | 13077       |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 512              | 100                | 17379       | 22094       |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 4096             | 10                 | 9151        | 9489        |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 4096             | 100                | 13194       | 18268       |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 65536            | 10                 | 1590        | 1174        |
-| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 65536            | 100                | 1539        | 1561        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 128              | 10                 | 3691        | 4037        |             
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 128              | 100                | 6881        | 7483        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 512              | 10                 | 3790        | 4069        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 512              | 100                | 6716        | 7408        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 4096             | 10                 | 3399        | 1974        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 4096             | 100                | 5341        | 6402        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 65536            | 10                 | 1099        | 1116        |
+| in-memory      | Intel Celeron J3455 | 1.00      | 4                 | 65536            | 100                | 1379        | 1703        |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 128              | 10                 | 4443        | 5170        |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 128              | 100                | 12813       | 13568       |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 512              | 10                 | 4450        | 4383        |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 512              | 100                | 12212       | 13586       |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 4096             | 10                 | 3441        | 3012        |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 4096             | 100                | 8982        | 10452       |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 65536            | 10                 | 1391        | 1167        |
+| in-memory      | Intel Celeron J3455 | 3.50      | 4                 | 65536            | 100                | 1303        | 1151        |

 ### Filesystem cache backend

@@ -42,22 +42,23 @@ TLS: disabled

 | Cache backend | CPU                 | CPU quota | Memory quota (GB) | Request size (b) | Client connections | PUT (req/s) | GET (req/s) |
 |---------------|---------------------|-----------|-------------------|------------------|--------------------|-------------|-------------|
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 128              | 10                 | 1478        | 5771        |             
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 128              | 100                | 3166        | 8070        |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 512              | 10                 | 1717        | 5895        |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 512              | 100                | 1125        | 6564        |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 4096             | 10                 | 819         | 2509        |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 4096             | 100                | 1136        | 2365        |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 65536            | 10                 | 584         | 632         |
-| filesystem    | Intel Celeron J3455 | 1.00      | 0.5               | 65536            | 100                | 529         | 635         |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 128              | 10                 | 1227        | 3342        |             
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 128              | 100                | 1156        | 4035        |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 512              | 10                 | 979         | 3294        |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 512              | 100                | 1217        | 3888        |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 4096             | 10                 | 535         | 1805        |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 4096             | 100                | 555         | 1910        |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 65536            | 10                 | 301         | 494         |
-| filesystem    | Intel Celeron J3455 | 3.50      | 0.5               | 65536            | 100                | 353         | 595         |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 10                 | 1208        | 2048        |             
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 100                | 1304        | 2394        |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 10                 | 1408        | 2157        |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 100                | 1282        | 1888        |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 10                 | 1291        | 1256        |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 100                | 1170        | 1423        |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 10                 | 313         | 606         |
+| filesystem    | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 100                | 298         | 609         |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 10                 | 2195        | 3477        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 100                | 2480        | 6207        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 10                 | 2164        | 3413        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 100                | 2842        | 6218        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 10                 | 1302        | 2591        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 100                | 2270        | 3045        |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 10                 | 375         | 394         |
+| filesystem    | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 100                | 364         | 462         |
+

 ### Memcache cache backend

@@ -68,19 +69,19 @@ TLS: disabled

 | Cache backend | CPU                 | CPU quota | Memory quota (GB) | Request size (b) | Client connections | PUT (req/s) | GET (req/s) |
 |---------------|---------------------|-----------|-------------------|------------------|--------------------|-------------|-------------|
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 10                 | 3380        | 6083        |             
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 100                | 3323        | 4998        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 10                 | 3924        | 6086        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 100                | 3440        | 5049        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 10                 | 3347        | 5255        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 100                | 3685        | 4693        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 10                 | 1304        | 1343        |
-| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 100                | 1481        | 1541        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 10                 | 4667        | 7984        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 100                | 4044        | 8358        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 10                 | 4177        | 7828        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 100                | 4079        | 8794        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 10                 | 4588        | 6869        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 100                | 5343        | 7797        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 10                 | 1624        | 1317        |
-| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 100                | 1633        | 1317        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 10                 | 2505        | 2578        |             
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 128              | 100                | 3582        | 3935        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 10                 | 2495        | 2784        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 512              | 100                | 3565        | 3883        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 10                 | 2174        | 2505        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 4096             | 100                | 2937        | 3563        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 10                 | 648         | 1074        |
+| memcache      | Intel Celeron J3455 | 1.00      | 0.25              | 65536            | 100                | 724         | 1548        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 10                 | 2362        | 2927        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 128              | 100                | 5491        | 6531        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 10                 | 2125        | 2807        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 512              | 100                | 5173        | 6242        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 10                 | 1720        | 2397        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 4096             | 100                | 3871        | 5859        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 10                 | 616         | 1016        |
+| memcache      | Intel Celeron J3455 | 3.50      | 0.25              | 65536            | 100                | 820         | 1677        |
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -5,7 +5,7 @@ WORKDIR /home/luser

 FROM base-release AS release-vanilla
 ADD rbcs-cli-envelope-*.jar rbcs.jar
-ENTRYPOINT ["java", "-Dlogback.configurationFile=logback.xml", "-XX:MaxRAMPercentage=70", "-XX:GCTimeRatio=24", "-XX:+UseZGC", "-XX:+ZGenerational", "-jar", "/home/luser/rbcs.jar"]
+ENTRYPOINT ["java", "-XX:+UseSerialGC", "-XX:GCTimeRatio=24", "-jar", "/home/luser/rbcs.jar", "server"]

 FROM base-release AS release-memcache
 ADD --chown=luser:luser rbcs-cli-envelope-*.jar rbcs.jar
@@ -14,29 +14,10 @@ WORKDIR /home/luser/plugins
 RUN --mount=type=bind,source=.,target=/build/distributions tar -xf /build/distributions/rbcs-server-memcache*.tar
 WORKDIR /home/luser
 ADD logback.xml .
-ENTRYPOINT ["java", "-Dlogback.configurationFile=logback.xml", "-XX:MaxRAMPercentage=70", "-XX:GCTimeRatio=24", "-XX:+UseZGC", "-XX:+ZGenerational", "-jar", "/home/luser/rbcs.jar"]
-
-FROM busybox:musl AS base-native
-RUN mkdir -p /var/lib/rbcs /etc/rbcs
-RUN adduser -D -u 1000 rbcs -h /var/lib/rbcs
+ENTRYPOINT ["java", "-Dlogback.configurationFile=logback.xml", "-XX:+UseSerialGC", "-XX:GCTimeRatio=24", "-jar", "/home/luser/rbcs.jar", "server"]

 FROM scratch AS release-native
-COPY --from=base-native /etc/passwd /etc/passwd
-COPY --from=base-native /etc/rbcs /etc/rbcs
-COPY --from=base-native /var/lib/rbcs /var/lib/rbcs
-ADD rbcs-cli.upx /usr/bin/rbcs-cli
-ENV RBCS_CONFIGURATION_DIR="/etc/rbcs"
-USER rbcs
-WORKDIR /var/lib/rbcs
-ENTRYPOINT ["/usr/bin/rbcs-cli", "-XX:MaximumHeapSizePercent=70"]
-
-FROM debian:12-slim AS release-jlink
-RUN mkdir -p /usr/share/java/rbcs
-RUN --mount=type=bind,source=.,target=/build/distributions tar -xf /build/distributions/rbcs-cli*.tar -C /usr/share/java/rbcs
-ADD --chmod=755 rbcs-cli.sh /usr/local/bin/rbcs-cli
-RUN adduser -u 1000 luser
-USER luser
-WORKDIR /home/luser
-ADD logback.xml .
-ENV JAVA_OPTS=-XX:-UseJVMCICompiler\ -Dlogback.configurationFile=logback.xml\ -XX:MaxRAMPercentage=70\ -XX:GCTimeRatio=24\ -XX:+UseZGC\ -XX:+ZGenerational
-ENTRYPOINT ["/usr/local/bin/rbcs-cli"]
+ADD rbcs-cli.upx /rbcs/rbcs-cli
+ENV RBCS_CONFIGURATION_DIR="/rbcs"
+WORKDIR /rbcs
+ENTRYPOINT ["/rbcs/rbcs-cli"]
--- a/docker/README.md
+++ b/docker/README.md
@@ -11,15 +11,11 @@ The `memcache` image is similar to the `vanilla` image, except that it also cont
 the `rbcs-server-memcache` plugin in the `plugins` folder, use this image if you don't want to use the `native`
 image and want to use memcache as the cache backend

-The `native` image contains a native, statically-linked executable created with GraalVM Native Image
+The `native` image contains a native, statically-linked executable created with GraalVM
 that has no userspace dependencies. It also embeds the memcache plugin inside the executable.
 Use this image for maximum efficiency and minimal memory footprint. 

-The `jlink` image contains a custom Java runtime created with GraalVM's Jlink
-that only depends on glibc. It also contains the memcache plugin in the module path.
-Use this image for best performance.
-
-## Which image should I use?
+## Which image shoud I use?
 The `native` image uses Java's SerialGC, so it's ideal for constrained environment like containers or small servers,
 if you have a lot of resources and want to squeeze out the maximum throughput you should consider the
 `vanilla` or `memcache` image, then choose and fine tune the garbage collector.
--- a/docker/build.gradle
+++ b/docker/build.gradle
@@ -29,7 +29,7 @@ Provider<Copy> prepareDockerBuild = tasks.register('prepareDockerBuild', Copy) {
    group = 'docker'
    into project.layout.buildDirectory.file('docker')
    from(configurations.docker)
-    from(files('Dockerfile', 'rbcs-cli.sh'))
+    from(file('Dockerfile'))
    from(rootProject.file('conf')) {
        include 'logback.xml'
    }
--- a/docker/rbcs-cli.sh
+++ b/docker/rbcs-cli.sh
@@ -1,3 +0,0 @@
-#!/bin/sh
-DIR=/usr/share/java/rbcs
-$DIR/bin/java $JAVA_OPTS -m net.woggioni.rbcs.cli "$@"
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,9 +2,9 @@ org.gradle.configuration-cache=false
 org.gradle.parallel=true
 org.gradle.caching=true

-rbcs.version = 0.3.0-SNAPSHOT
+rbcs.version = 0.2.0

-lys.version = 2025.06.10
+lys.version = 2025.03.08

 gitea.maven.url = https://gitea.woggioni.net/api/packages/woggioni/maven
 docker.registry.url=gitea.woggioni.net
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
--- a/3
+++ b/3
@@ -86,7 +86,8 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit

 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
--- a/rbcs-cli/build.gradle
+++ b/rbcs-cli/build.gradle
@@ -18,7 +18,6 @@ import net.woggioni.gradle.graalvm.UpxTask
 import net.woggioni.gradle.graalvm.JlinkPlugin
 import net.woggioni.gradle.graalvm.JlinkTask

-
 sourceSets {
    configureNativeImage {
        java {
@@ -30,7 +29,6 @@ sourceSets {
 }

 configurations {
-
    release {
        transitive = false
        canBeConsumed = true
@@ -122,36 +120,16 @@ nativeImage {
    linkAtBuildTime = false
    classpath = project.files(jarTaskProvider, configurations.nativeImage)
    compressExecutable = true
-    compressionLevel = 6
+    compressionLevel = 10
    useLZMA = false
 }

 Provider<UpxTask> upxTaskProvider = tasks.named(NativeImagePlugin.UPX_TASK_NAME, UpxTask) {
 }

-Provider<JlinkTask> jlinkTaskProvider = tasks.named(JlinkPlugin.JLINK_TASK_NAME, JlinkTask) {
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
-        vendor = JvmVendorSpec.GRAAL_VM
-    }
-
+tasks.named(JlinkPlugin.JLINK_TASK_NAME, JlinkTask) {
    mainClass = mainClassName
    mainModule = 'net.woggioni.rbcs.cli'
-    classpath = project.files(
-            configurations.configureNativeImageRuntimeClasspath,
-            sourceSets.configureNativeImage.output
-    )
-    additionalModules = [
-        'net.woggioni.rbcs.server.memcache',
-        'ch.qos.logback.classic',
-        'jdk.crypto.ec'
-    ]
-    compressionLevel = 2
-    stripDebug = false
-}
-
-Provider<Tar> jlinkDistTarTaskProvider = tasks.named(JlinkPlugin.JLINK_DIST_TAR_TASK_NAME, Tar) {
-    exclude 'lib/libjvmcicompiler.so'
 }

 tasks.named(JavaPlugin.PROCESS_RESOURCES_TASK_NAME, ProcessResources) {
@@ -165,7 +143,6 @@ tasks.named(JavaPlugin.PROCESS_RESOURCES_TASK_NAME, ProcessResources) {
 artifacts {
    release(envelopeJarTaskProvider)
    release(upxTaskProvider)
-    release(jlinkDistTarTaskProvider)
 }

 publishing {
--- a/rbcs-cli/native-image/native-image.properties
+++ b/rbcs-cli/native-image/native-image.properties
@@ -1,2 +1,2 @@
-Args=-O3 -march=x86-64-v2 --gc=serial --install-exit-handlers --initialize-at-run-time=io.netty --enable-url-protocols=jpms --initialize-at-build-time=net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory,net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory$JpmsHandler
+Args=-O3 -march=skylake --gc=serial --install-exit-handlers --initialize-at-run-time=io.netty --enable-url-protocols=jpms --initialize-at-build-time=net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory,net.woggioni.rbcs.common.RbcsUrlStreamHandlerFactory$JpmsHandler
 #-H:TraceClassInitialization=io.netty.handler.ssl.BouncyCastleAlpnSslUtils
--- a/rbcs-cli/native-image/reflect-config.json
+++ b/rbcs-cli/native-image/reflect-config.json
@@ -120,14 +120,6 @@
  "name":"io.netty.buffer.AbstractReferenceCountedByteBuf",
  "fields":[{"name":"refCnt"}]
 },
-{
-  "name":"io.netty.buffer.AdaptivePoolingAllocator$Chunk",
-  "fields":[{"name":"refCnt"}]
-},
-{
-  "name":"io.netty.buffer.AdaptivePoolingAllocator$Magazine",
-  "fields":[{"name":"nextInLine"}]
-},
 {
  "name":"io.netty.channel.AbstractChannelHandlerContext",
  "fields":[{"name":"handlerState"}]
@@ -292,13 +284,20 @@
  "fields":[{"name":"producerIndex"}]
 },
 {
-  "name":"io.netty.util.internal.shaded.org.jctools.queues.MpmcArrayQueueConsumerIndexField",
+  "name":"io.netty.util.internal.shaded.org.jctools.queues.unpadded.MpscUnpaddedArrayQueueConsumerIndexField",
  "fields":[{"name":"consumerIndex"}]
 },
 {
-  "name":"io.netty.util.internal.shaded.org.jctools.queues.MpmcArrayQueueProducerIndexField",
+  "name":"io.netty.util.internal.shaded.org.jctools.queues.unpadded.MpscUnpaddedArrayQueueProducerIndexField",
  "fields":[{"name":"producerIndex"}]
 },
+{
+  "name":"io.netty.util.internal.shaded.org.jctools.queues.unpadded.MpscUnpaddedArrayQueueProducerLimitField",
+  "fields":[{"name":"producerLimit"}]
+},
+{
+  "name":"java.io.FilePermission"
+},
 {
  "name":"java.lang.Object",
  "allDeclaredFields":true,
@@ -308,14 +307,26 @@
  "name":"java.lang.ProcessHandle",
  "methods":[{"name":"current","parameterTypes":[] }, {"name":"pid","parameterTypes":[] }]
 },
+{
+  "name":"java.lang.RuntimePermission"
+},
 {
  "name":"java.lang.System",
  "methods":[{"name":"console","parameterTypes":[] }]
 },
 {
  "name":"java.lang.Thread",
-  "fields":[{"name":"threadLocalRandomProbe"}],
-  "methods":[{"name":"isVirtual","parameterTypes":[] }]
+  "fields":[{"name":"threadLocalRandomProbe"}]
+},
+{
+  "name":"java.net.NetPermission"
+},
+{
+  "name":"java.net.SocketPermission"
+},
+{
+  "name":"java.net.URLPermission",
+  "methods":[{"name":"<init>","parameterTypes":["java.lang.String","java.lang.String"] }]
 },
 {
  "name":"java.nio.Bits",
@@ -347,12 +358,18 @@
 {
  "name":"java.security.AlgorithmParametersSpi"
 },
+{
+  "name":"java.security.AllPermission"
+},
 {
  "name":"java.security.KeyStoreSpi"
 },
 {
  "name":"java.security.SecureRandomParameters"
 },
+{
+  "name":"java.security.SecurityPermission"
+},
 {
  "name":"java.sql.Connection"
 },
@@ -427,6 +444,9 @@
  "name":"java.time.ZonedDateTime",
  "methods":[{"name":"parse","parameterTypes":["java.lang.CharSequence"] }]
 },
+{
+  "name":"java.util.PropertyPermission"
+},
 {
  "name":"java.util.concurrent.ForkJoinTask",
  "fields":[{"name":"aux"}, {"name":"status"}]
@@ -447,11 +467,22 @@
  "name":"java.util.concurrent.atomic.Striped64$Cell",
  "fields":[{"name":"value"}]
 },
+{
+  "name":"java.util.zip.Adler32",
+  "methods":[{"name":"update","parameterTypes":["java.nio.ByteBuffer"] }]
+},
+{
+  "name":"java.util.zip.CRC32",
+  "methods":[{"name":"update","parameterTypes":["java.nio.ByteBuffer"] }]
+},
 {
  "name":"javax.security.auth.x500.X500Principal",
  "fields":[{"name":"thisX500Name"}],
  "methods":[{"name":"<init>","parameterTypes":["sun.security.x509.X500Name"] }]
 },
+{
+  "name":"javax.smartcardio.CardPermission"
+},
 {
  "name":"jdk.internal.misc.Unsafe",
  "methods":[{"name":"getUnsafe","parameterTypes":[] }]
@@ -557,9 +588,6 @@
  "name":"net.woggioni.rbcs.server.exception.ExceptionHandler",
  "methods":[{"name":"exceptionCaught","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Throwable"] }]
 },
-{
-  "name":"net.woggioni.rbcs.server.handler.BlackHoleRequestHandler"
-},
 {
  "name":"net.woggioni.rbcs.server.handler.MaxRequestSizeHandler",
  "methods":[{"name":"channelRead","parameterTypes":["io.netty.channel.ChannelHandlerContext","java.lang.Object"] }]
@@ -587,7 +615,7 @@
 {
  "name":"sun.misc.Unsafe",
  "fields":[{"name":"theUnsafe"}],
-  "methods":[{"name":"copyMemory","parameterTypes":["java.lang.Object","long","java.lang.Object","long","long"] }, {"name":"getAndAddLong","parameterTypes":["java.lang.Object","long","long"] }, {"name":"getAndSetObject","parameterTypes":["java.lang.Object","long","java.lang.Object"] }, {"name":"invokeCleaner","parameterTypes":["java.nio.ByteBuffer"] }]
+  "methods":[{"name":"copyMemory","parameterTypes":["java.lang.Object","long","java.lang.Object","long","long"] }, {"name":"getAndAddLong","parameterTypes":["java.lang.Object","long","long"] }, {"name":"getAndSetObject","parameterTypes":["java.lang.Object","long","java.lang.Object"] }, {"name":"invokeCleaner","parameterTypes":["java.nio.ByteBuffer"] }, {"name":"storeFence","parameterTypes":[] }]
 },
 {
  "name":"sun.nio.ch.SelectorImpl",
@@ -609,6 +637,10 @@
  "name":"sun.security.provider.DSA$SHA256withDSA",
  "methods":[{"name":"<init>","parameterTypes":[] }]
 },
+{
+  "name":"sun.security.provider.JavaKeyStore$JKS",
+  "methods":[{"name":"<init>","parameterTypes":[] }]
+},
 {
  "name":"sun.security.provider.MD5",
  "methods":[{"name":"<init>","parameterTypes":[] }]
@@ -697,14 +729,6 @@
  "name":"sun.security.x509.CertificatePoliciesExtension",
  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
 },
-{
-  "name":"sun.security.x509.ExtendedKeyUsageExtension",
-  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
-},
-{
-  "name":"sun.security.x509.IssuerAlternativeNameExtension",
-  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
-},
 {
  "name":"sun.security.x509.KeyUsageExtension",
  "methods":[{"name":"<init>","parameterTypes":["java.lang.Boolean","java.lang.Object"] }]
--- a/rbcs-cli/native-image/resource-config.json
+++ b/rbcs-cli/native-image/resource-config.json
@@ -32,12 +32,14 @@
    "pattern":"\\Qnet/woggioni/rbcs/cli/logback.xml\\E"
  }, {
    "pattern":"\\Qnet/woggioni/rbcs/client/schema/rbcs-client.xsd\\E"
-  }, {
-    "pattern":"\\Qnet/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd\\E"
  }, {
    "pattern":"\\Qnet/woggioni/rbcs/server/rbcs-default.xml\\E"
  }, {
    "pattern":"\\Qnet/woggioni/rbcs/server/schema/rbcs-server.xsd\\E"
+  }, {
+    "pattern":"\\Q/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd\\E"
+  }, {
+    "pattern":"java.base:\\Qsun/text/resources/LineBreakIteratorData\\E"
  }]},
  "bundles":[{
    "name":"com.sun.org.apache.xerces.internal.impl.xpath.regex.message",
--- a/rbcs-cli/src/main/kotlin/net/woggioni/rbcs/cli/impl/RbcsCommand.kt
+++ b/rbcs-cli/src/main/kotlin/net/woggioni/rbcs/cli/impl/RbcsCommand.kt
@@ -12,7 +12,7 @@ abstract class RbcsCommand : Runnable {
        private set

    protected fun findConfigurationFile(app: Application, fileName : String): Path {
-        val confDir = app.computeConfigurationDirectory(false)
+        val confDir = app.computeConfigurationDirectory()
        val configurationFile = confDir.resolve(fileName)
        return configurationFile
    }
--- a/rbcs-client/src/main/kotlin/net/woggioni/rbcs/client/RemoteBuildCacheClient.kt
+++ b/rbcs-client/src/main/kotlin/net/woggioni/rbcs/client/RemoteBuildCacheClient.kt
@@ -7,10 +7,8 @@ import io.netty.channel.Channel
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.ChannelOption
 import io.netty.channel.ChannelPipeline
-import io.netty.channel.IoEventLoopGroup
-import io.netty.channel.MultiThreadIoEventLoopGroup
 import io.netty.channel.SimpleChannelInboundHandler
-import io.netty.channel.nio.NioIoHandler
+import io.netty.channel.nio.NioEventLoopGroup
 import io.netty.channel.pool.AbstractChannelPoolHandler
 import io.netty.channel.pool.ChannelPool
 import io.netty.channel.pool.FixedChannelPool
@@ -34,8 +32,12 @@ import io.netty.handler.timeout.IdleState
 import io.netty.handler.timeout.IdleStateEvent
 import io.netty.handler.timeout.IdleStateHandler
 import io.netty.util.concurrent.Future
-import io.netty.util.concurrent.Future as NettyFuture
 import io.netty.util.concurrent.GenericFutureListener
+import net.woggioni.rbcs.api.CacheValueMetadata
+import net.woggioni.rbcs.common.RBCS.loadKeystore
+import net.woggioni.rbcs.common.createLogger
+import net.woggioni.rbcs.common.debug
+import net.woggioni.rbcs.common.trace
 import java.io.IOException
 import java.net.InetSocketAddress
 import java.net.URI
@@ -48,23 +50,19 @@ import java.util.concurrent.atomic.AtomicInteger
 import javax.net.ssl.TrustManagerFactory
 import javax.net.ssl.X509TrustManager
 import kotlin.random.Random
-import net.woggioni.rbcs.api.CacheValueMetadata
-import net.woggioni.rbcs.common.RBCS.loadKeystore
-import net.woggioni.rbcs.common.createLogger
-import net.woggioni.rbcs.common.debug
-import net.woggioni.rbcs.common.trace
+import io.netty.util.concurrent.Future as NettyFuture

 class RemoteBuildCacheClient(private val profile: Configuration.Profile) : AutoCloseable {
    companion object {
        private val log = createLogger<RemoteBuildCacheClient>()
    }

-    private val group: IoEventLoopGroup
+    private val group: NioEventLoopGroup
    private val sslContext: SslContext
    private val pool: ChannelPool

    init {
-        group = MultiThreadIoEventLoopGroup(NioIoHandler.newFactory())
+        group = NioEventLoopGroup()
        sslContext = SslContextBuilder.forClient().also { builder ->
            (profile.authentication as? Configuration.Authentication.TlsClientAuthenticationCredentials)?.let { tlsClientAuthenticationCredentials ->
                builder.apply {
--- a/rbcs-client/src/test/kotlin/net/woggioni/rbcs/client/RetryTest.kt
+++ b/rbcs-client/src/test/kotlin/net/woggioni/rbcs/client/RetryTest.kt
@@ -129,7 +129,7 @@ class RetryTest {
                    previousAttempt.first + testArgs.initialDelay * Math.pow(testArgs.exp, index.toDouble()) * 1e6
                val actualTimestamp = timestamp
                val err = Math.abs(expectedTimestamp - actualTimestamp) / expectedTimestamp
-                Assertions.assertTrue(err < 0.1)
+                Assertions.assertTrue(err < 0.5)
            }
            if (index == attempts.size - 1 && index < testArgs.maxAttempt - 1) {
                /*
--- a/rbcs-server/src/main/java/module-info.java
+++ b/rbcs-server/src/main/java/module-info.java
@@ -3,19 +3,21 @@ import net.woggioni.rbcs.server.cache.FileSystemCacheProvider;
 import net.woggioni.rbcs.server.cache.InMemoryCacheProvider;

 module net.woggioni.rbcs.server {
+    requires java.sql;
    requires java.xml;
+    requires java.logging;
    requires java.naming;
    requires kotlin.stdlib;
+    requires io.netty.buffer;
+    requires io.netty.transport;
    requires io.netty.codec.http;
+    requires io.netty.common;
    requires io.netty.handler;
+    requires io.netty.codec;
+    requires org.slf4j;
    requires net.woggioni.jwo;
    requires net.woggioni.rbcs.common;
    requires net.woggioni.rbcs.api;
-    requires io.netty.codec.compression;
-    requires io.netty.transport;
-    requires io.netty.buffer;
-    requires io.netty.common;
-    requires org.slf4j;

    exports net.woggioni.rbcs.server;

--- a/rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/RemoteBuildCacheServer.kt
+++ b/rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/RemoteBuildCacheServer.kt
@@ -11,8 +11,7 @@ import io.netty.channel.ChannelInboundHandlerAdapter
 import io.netty.channel.ChannelInitializer
 import io.netty.channel.ChannelOption
 import io.netty.channel.ChannelPromise
-import io.netty.channel.MultiThreadIoEventLoopGroup
-import io.netty.channel.nio.NioIoHandler
+import io.netty.channel.nio.NioEventLoopGroup
 import io.netty.channel.socket.DatagramChannel
 import io.netty.channel.socket.ServerSocketChannel
 import io.netty.channel.socket.SocketChannel
@@ -35,25 +34,8 @@ import io.netty.handler.timeout.IdleState
 import io.netty.handler.timeout.IdleStateEvent
 import io.netty.handler.timeout.IdleStateHandler
 import io.netty.util.AttributeKey
+import io.netty.util.concurrent.DefaultEventExecutorGroup
 import io.netty.util.concurrent.EventExecutorGroup
-import java.io.OutputStream
-import java.net.InetSocketAddress
-import java.nio.file.Files
-import java.nio.file.Path
-import java.security.PrivateKey
-import java.security.cert.X509Certificate
-import java.time.Duration
-import java.time.Instant
-import java.util.Arrays
-import java.util.Base64
-import java.util.concurrent.CompletableFuture
-import java.util.concurrent.Future
-import java.util.concurrent.TimeUnit
-import java.util.concurrent.TimeoutException
-import java.util.regex.Matcher
-import java.util.regex.Pattern
-import javax.naming.ldap.LdapName
-import javax.net.ssl.SSLPeerUnverifiedException
 import net.woggioni.rbcs.api.AsyncCloseable
 import net.woggioni.rbcs.api.Configuration
 import net.woggioni.rbcs.api.exception.ConfigurationException
@@ -77,6 +59,24 @@ import net.woggioni.rbcs.server.handler.MaxRequestSizeHandler
 import net.woggioni.rbcs.server.handler.ServerHandler
 import net.woggioni.rbcs.server.throttling.BucketManager
 import net.woggioni.rbcs.server.throttling.ThrottlingHandler
+import java.io.OutputStream
+import java.net.InetSocketAddress
+import java.nio.file.Files
+import java.nio.file.Path
+import java.security.PrivateKey
+import java.security.cert.X509Certificate
+import java.time.Duration
+import java.time.Instant
+import java.util.Arrays
+import java.util.Base64
+import java.util.concurrent.CompletableFuture
+import java.util.concurrent.Future
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.TimeoutException
+import java.util.regex.Matcher
+import java.util.regex.Pattern
+import javax.naming.ldap.LdapName
+import javax.net.ssl.SSLPeerUnverifiedException

 class RemoteBuildCacheServer(private val cfg: Configuration) {

@@ -208,6 +208,7 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
        private val cfg: Configuration,
        private val channelFactory : ChannelFactory<SocketChannel>,
        private val datagramChannelFactory : ChannelFactory<DatagramChannel>,
+        private val eventExecutorGroup: EventExecutorGroup
    ) : ChannelInitializer<Channel>(), AsyncCloseable {

        companion object {
@@ -359,7 +360,7 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
                    cacheHandlerFactory.newHandler(cfg, ch.eventLoop(), channelFactory, datagramChannelFactory)
                }
            }
-            pipeline.addLast(ServerHandler.NAME, serverHandler)
+            pipeline.addLast(eventExecutorGroup, ServerHandler.NAME, serverHandler)
            pipeline.addLast(ExceptionHandler.NAME, ExceptionHandler)
            pipeline.addLast(BlackHoleRequestHandler.NAME, BlackHoleRequestHandler())
        }
@@ -440,13 +441,20 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {

    fun run(): ServerHandle {
        // Create the multithreaded event loops for the server
-        val bossGroup = MultiThreadIoEventLoopGroup(1, NioIoHandler.newFactory())
+        val bossGroup = NioEventLoopGroup(1)
        val channelFactory = ChannelFactory<SocketChannel> { NioSocketChannel() }
        val datagramChannelFactory = ChannelFactory<DatagramChannel> { NioDatagramChannel() }
        val serverChannelFactory = ChannelFactory<ServerSocketChannel> { NioServerSocketChannel() }
-        val workerGroup = MultiThreadIoEventLoopGroup(0, NioIoHandler.newFactory())
-
-        val serverInitializer = ServerInitializer(cfg, channelFactory, datagramChannelFactory)
+        val workerGroup = NioEventLoopGroup(0)
+        val eventExecutorGroup = run {
+            val threadFactory = if (cfg.eventExecutor.isUseVirtualThreads) {
+                Thread.ofVirtual().factory()
+            } else {
+                null
+            }
+            DefaultEventExecutorGroup(Runtime.getRuntime().availableProcessors(), threadFactory)
+        }
+        val serverInitializer = ServerInitializer(cfg, channelFactory, datagramChannelFactory, workerGroup)
        val bootstrap = ServerBootstrap().apply {
            // Configure the server
            group(bossGroup, workerGroup)
@@ -467,7 +475,7 @@ class RemoteBuildCacheServer(private val cfg: Configuration) {
        return ServerHandle(
            httpChannel.closeFuture(),
            bossGroup,
-            setOf(workerGroup),
+            setOf(workerGroup, eventExecutorGroup),
            serverInitializer
        )
    }
--- a/rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/InMemoryCacheHandler.kt
+++ b/rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/cache/InMemoryCacheHandler.kt
@@ -4,7 +4,13 @@ import io.netty.buffer.ByteBuf
 import io.netty.channel.ChannelHandlerContext
 import net.woggioni.rbcs.api.CacheHandler
 import net.woggioni.rbcs.api.message.CacheMessage
-import net.woggioni.rbcs.api.message.CacheMessage.*
+import net.woggioni.rbcs.api.message.CacheMessage.CacheContent
+import net.woggioni.rbcs.api.message.CacheMessage.CacheGetRequest
+import net.woggioni.rbcs.api.message.CacheMessage.CachePutRequest
+import net.woggioni.rbcs.api.message.CacheMessage.CachePutResponse
+import net.woggioni.rbcs.api.message.CacheMessage.CacheValueFoundResponse
+import net.woggioni.rbcs.api.message.CacheMessage.CacheValueNotFoundResponse
+import net.woggioni.rbcs.api.message.CacheMessage.LastCacheContent
 import net.woggioni.rbcs.common.ByteBufOutputStream
 import net.woggioni.rbcs.common.RBCS.processCacheKey
 import java.util.zip.Deflater
@@ -35,14 +41,18 @@ class InMemoryCacheHandler(

    private inner class InProgressPlainPutRequest(ctx: ChannelHandlerContext, override val request: CachePutRequest) :
        InProgressPutRequest {
-        override val buf = ctx.alloc().compositeHeapBuffer()
+        override val buf = ctx.alloc().compositeBuffer()
+
+        private val stream = ByteBufOutputStream(buf).let {
+            if (compressionEnabled) {
+                DeflaterOutputStream(it, Deflater(compressionLevel))
+            } else {
+                it
+            }
+        }

        override fun append(buf: ByteBuf) {
-            if(buf.isDirect) {
-                this.buf.writeBytes(buf)
-            } else {
-                this.buf.addComponent(true, buf.retain())
-            }
+            this.buf.addComponent(true, buf.retain())
        }

        override fun close() {
--- a/rbcs-servlet/conf/server.xml
+++ b/rbcs-servlet/conf/server.xml
@@ -53,9 +53,7 @@
 <!--        <Connector port="8080" protocol="HTTP/1.1" executor="tomcatThreadPool"-->
 <!--                   connectionTimeout="20000"-->
 <!--                   redirectPort="8443" />-->
-        <Connector port="8080" protocol="org.apache.coyote.http11.Http11NioProtocol"
-                   maxKeepAliveRequests="1000000"
-                   keepAliveTimeout="-1"
+        <Connector port="8080" protocol="HTTP/1.1"
                   connectionTimeout="20000"
                   redirectPort="8443" />
        <!-- A "Connector" using the shared thread pool-->