tillrohrmann commented on a change in pull request #9703: [FLINK-14038]Add
default GC options for flink on yarn to facilitate debugging
URL: https://github.com/apache/flink/pull/9703#discussion_r337642329
##########
File path:
flink-yarn/src/test/java/org/apache/flink/yarn/YarnClusterDescriptorTest.java
##########
@@ -174,10 +174,26 @@ public void testConfigOverwrite() throws
ClusterDeploymentException {
@Test
public void testSetupApplicationMasterContainer() {
Configuration cfg = new Configuration();
+ cfg.setBoolean(CoreOptions.FLINK_JVM_DEFAULT_GC_LOGGING, true);
YarnClusterDescriptor clusterDescriptor =
createYarnClusterDescriptor(cfg);
final String java = "$JAVA_HOME/bin/java";
final String jvmmem = "-Xms424m -Xmx424m";
+ final String defaultGCLoggingOpts =
+ "-Xloggc:" + ApplicationConstants.LOG_DIR_EXPANSION_VAR
+ "/gc.log " +
+ "-XX:+PrintGCApplicationStoppedTime " +
+ "-XX:+PrintGCDetails " +
+ "-XX:+PrintGCDateStamps " +
+ "-XX:+UseGCLogFileRotation " +
+ "-XX:NumberOfGCLogFiles=10 " +
+ "-XX:GCLogFileSize=10M " +
+ "-XX:+PrintPromotionFailure " +
+ "-XX:+PrintGCCause";
+ final String heapdumpOpts =
+ "-XX:+HeapDumpOnOutOfMemoryError " +
+
"-XX:HeapDumpPath=/tmp/test-flink-jm-heapdump.hprof " +
+ "-XX:OnOutOfMemoryError=\"echo -e
'OutOfMemoryError! Killing current process %p...\nCheck gc logs and heapdump
file(/tmp/test-flink-jm-heapdump.hprof) for details.' > " +
+ "<LOG_DIR>/jobmanager.err; kill -9 %p\"";
Review comment:
Would be great to deduplicate this part as well. For example, if we have a
utility `getGCLoggingOpts(....)`, then we could use it here.
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