Mitigate Gradle daemon oomkills by monkey patching cgroup v2 into Gradle (#10247)

bric3 · web-flow · commit 9032c6dddeda · 2026-01-08T17:14:49.000+01:00
* chore: Try cgroup agent patcher

* chore: Try cgroup agent patcher (was missing in .test_job)
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
@@ -197,7 +197,20 @@ default:
     # replace maven central part by MAVEN_REPOSITORY_PROXY in .mvn/wrapper/maven-wrapper.properties
     - sed -i "s|https://repo.maven.apache.org/maven2/|$MAVEN_REPOSITORY_PROXY|g" .mvn/wrapper/maven-wrapper.properties
     - mkdir -p .mvn/caches
-    - export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xms$GRADLE_MEM -Xmx$GRADLE_MEM -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+    - |
+      # Try agent, curl it locally
+      # Maven url https://repo1.maven.org/maven2/io/github/bric3/gradle/cgroup2/patcher/gradle-cgroup2-patcher/0.0.1/gradle-cgroup2-patcher-0.0.1.jar
+      # MagicMirror url https://depot-read-api-java.us1.ddbuild.io/magicmirror/magicmirror/@current//io/github/bric3/gradle/cgroup2/patcher/gradle-cgroup2-patcher/0.0.1/gradle-cgroup2-patcher-0.0.1.jar
+      curl --fail \
+        --silent \
+        --show-error \
+        --location \
+        --output \
+        /tmp/gradle-cgroup2-patcher.jar \
+        ${MAVEN_REPOSITORY_PROXY}/io/github/bric3/gradle/cgroup2/patcher/gradle-cgroup2-patcher/0.0.1/gradle-cgroup2-patcher-0.0.1.jar \
+        || echo "No local agent found"
+      file /tmp/gradle-cgroup2-patcher.jar
+    - export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xms$GRADLE_MEM -Xmx$GRADLE_MEM -javaagent:/tmp/gradle-cgroup2-patcher.jar -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
     - export GRADLE_ARGS=" --build-cache --stacktrace --no-daemon --parallel --max-workers=$GRADLE_WORKERS"
     - *normalize_node_index
     # for weird reasons, gradle will always "chmod 700" the .gradle folder
@@ -593,7 +606,7 @@ muzzle-dep-report:
       export PROFILER_COMMAND="-XX:StartFlightRecording=settings=profile,filename=/tmp/${CI_JOB_NAME_SLUG}.jfr,dumponexit=true";
       fi
     - *prepare_test_env
-    - export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xms$GRADLE_MEM -Xmx$GRADLE_MEM $PROFILER_COMMAND -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp -Djava.util.prefs.userRoot=/tmp/.java/.userPrefs-${CI_JOB_ID}' -Ddatadog.forkedMaxHeapSize=1024M -Ddatadog.forkedMinHeapSize=128M"
+    - export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xms$GRADLE_MEM -Xmx$GRADLE_MEM $PROFILER_COMMAND -javaagent:/tmp/gradle-cgroup2-patcher.jar -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp -Djava.util.prefs.userRoot=/tmp/.java/.userPrefs-${CI_JOB_ID}' -Ddatadog.forkedMaxHeapSize=1024M -Ddatadog.forkedMinHeapSize=128M"
     - ./gradlew --version
     - ./gradlew $GRADLE_TARGET $GRADLE_PARAMS -PtestJvm=$testJvm -Pslot=$CI_NODE_INDEX/$CI_NODE_TOTAL $GRADLE_ARGS --continue || $CONTINUE_ON_FAILURE
   after_script:
