Thanks for reporting this. Here is the issue and the fix for it: https://issues.apache.org/jira/browse/FLINK-12012
On Fri, Mar 15, 2019 at 1:36 PM Yu Li <l...@apache.org> wrote: > Hi All, > > As titled, I found this case failed stably in one of my testing environment > when verifying 1.8.0 release. I'm starting a new thread here because it > also failed in 1.7.2 and 1.6.4 on the same env, so I believe it's not a 1.8 > specific issue. And the case could pass in my local mac env (MacOS 10.14.3) > so the issue should be environment related (possibly due to different > default system configuration). Below are some more detailed information: > > * Kernel version: Linux 3.10.0-327 > * LSB Version: :core-4.1-amd64:core-4.1-noarch > * Detailed error message: > [ERROR] > > testKeyedWithBroadcastTranslation(org.apache.flink.test.streaming.runtime.BroadcastStateITCase) > Time elapsed: 0.638 s <<< ERROR! > org.apache.flink.runtime.client.JobExecutionException: Job execution > failed. > at > > org.apache.flink.test.streaming.runtime.BroadcastStateITCase.testKeyedWithBroadcastTranslation(BroadcastStateITCase.java:99) > Caused by: java.io.IOException: Insufficient number of network buffers: > required 96, but only 63 available. The total number of network buffers is > currently set to 7281 of 32768 bytes each. You can increase this number by > setting the configuration keys 'taskmanager.network.memory.fraction', > 'taskmanager.network.memory.min', and 'taskmanager.network.memory.max'. > * Command to run test case: mvn -Dtest=BroadcastStateITCase > -DfailIfNoTests=false -Dcheckstyle.skip=true clean test -pl flink-tests -am > - Notice that for 1.6.2/1.7.2 we need to manually update the > maven-surefire-plugin version to 2.22.1 in pom.xml, or the test case will > be skipped. In 1.8 we don't need this action since FLINK-11144 includes the > change. > > Best Regards, > Yu >