[
https://issues.apache.org/jira/browse/FLINK-25185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17463222#comment-17463222
]
Yingjie Cao commented on FLINK-25185:
-------------------------------------
After looking into the code and deadlock stacks, I can confirm that FLINK-24035
caused the deadlock. NetworkBufferPool#internalRequestMemorySegments may also
need to acquire the 'factoryLock' in the ```catch``` block, I did not realize
that previously. Apart from this, I am still trying to understand why we
reached the ```catch``` block. Maybe there is another issue. Anyway, I will try
first to fix the issue caused by FLINK-24035 and update if I have some any new
findings.
> StreamFaultToleranceTestBase hangs on AZP
> -----------------------------------------
>
> Key: FLINK-25185
> URL: https://issues.apache.org/jira/browse/FLINK-25185
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends, Test Infrastructure
> Affects Versions: 1.13.3, 1.15.0
> Reporter: Till Rohrmann
> Priority: Blocker
> Labels: test-stability
> Fix For: 1.15.0
>
>
> The {{StreamFaultToleranceTestBase}} hangs on AZP.
> {code}
> 2021-12-06T04:24:48.1676089Z
> ==========================================================================================
> 2021-12-06T04:24:48.1678883Z === WARNING: This task took already 95% of the
> available time budget of 237 minutes ===
> 2021-12-06T04:24:48.1679596Z
> ==========================================================================================
> 2021-12-06T04:24:48.1680326Z
> ==============================================================================
> 2021-12-06T04:24:48.1680877Z The following Java processes are running (JPS)
> 2021-12-06T04:24:48.1681467Z
> ==============================================================================
> 2021-12-06T04:24:48.6514536Z 13701 surefirebooter17740627448580534543.jar
> 2021-12-06T04:24:48.6515353Z 1622 Jps
> 2021-12-06T04:24:48.6515795Z 780 Launcher
> 2021-12-06T04:24:48.6825889Z
> ==============================================================================
> 2021-12-06T04:24:48.6826565Z Printing stack trace of Java process 13701
> 2021-12-06T04:24:48.6827012Z
> ==============================================================================
> 2021-12-06T04:24:49.1876086Z 2021-12-06 04:24:49
> 2021-12-06T04:24:49.1877098Z Full thread dump OpenJDK 64-Bit Server VM
> (11.0.10+9 mixed mode):
> 2021-12-06T04:24:49.1877362Z
> 2021-12-06T04:24:49.1877672Z Threads class SMR info:
> 2021-12-06T04:24:49.1878049Z _java_thread_list=0x00007f254c007630,
> length=365, elements={
> 2021-12-06T04:24:49.1878504Z 0x00007f2598028000, 0x00007f2598280800,
> 0x00007f2598284800, 0x00007f2598299000,
> 2021-12-06T04:24:49.1878973Z 0x00007f259829b000, 0x00007f259829d800,
> 0x00007f259829f800, 0x00007f25982a1800,
> 2021-12-06T04:24:49.1879680Z 0x00007f2598337800, 0x00007f25983e3000,
> 0x00007f2598431000, 0x00007f2528016000,
> 2021-12-06T04:24:49.1896613Z 0x00007f2599003000, 0x00007f259972e000,
> 0x00007f2599833800, 0x00007f259984c000,
> 2021-12-06T04:24:49.1897558Z 0x00007f259984f000, 0x00007f2599851000,
> 0x00007f2599892000, 0x00007f2599894800,
> 2021-12-06T04:24:49.1898075Z 0x00007f2499a16000, 0x00007f2485acd800,
> 0x00007f2485ace000, 0x00007f24876bb800,
> 2021-12-06T04:24:49.1898562Z 0x00007f2461e59000, 0x00007f2499a0e800,
> 0x00007f2461e5e800, 0x00007f2461e81000,
> 2021-12-06T04:24:49.1899037Z 0x00007f24dc015000, 0x00007f2461e86800,
> 0x00007f2448002000, 0x00007f24dc01c000,
> 2021-12-06T04:24:49.1899522Z 0x00007f2438001000, 0x00007f2438003000,
> 0x00007f2438005000, 0x00007f2438006800,
> 2021-12-06T04:24:49.1899982Z 0x00007f2438008800, 0x00007f2434017800,
> 0x00007f243401a800, 0x00007f2414008800,
> 2021-12-06T04:24:49.1900495Z 0x00007f24e8089800, 0x00007f24e8090000,
> 0x00007f23e4005800, 0x00007f24e8092800,
> 2021-12-06T04:24:49.1901163Z 0x00007f24e8099000, 0x00007f2414015800,
> 0x00007f24dc04c000, 0x00007f2414018800,
> 2021-12-06T04:24:49.1901680Z 0x00007f2414020000, 0x00007f24dc058000,
> 0x00007f24dc05b000, 0x00007f2414022000,
> 2021-12-06T04:24:49.1902283Z 0x00007f24d400f000, 0x00007f241402e800,
> 0x00007f2414031800, 0x00007f2414033800,
> 2021-12-06T04:24:49.1902880Z 0x00007f2414035000, 0x00007f2414037000,
> 0x00007f2414038800, 0x00007f241403a800,
> 2021-12-06T04:24:49.1903354Z 0x00007f241403c000, 0x00007f241403e000,
> 0x00007f241403f800, 0x00007f2414041800,
> 2021-12-06T04:24:49.1903812Z 0x00007f2414043000, 0x00007f2414045000,
> 0x00007f24dc064800, 0x00007f2414047000,
> 2021-12-06T04:24:49.1904284Z 0x00007f2414048800, 0x00007f241404a800,
> 0x00007f241404c800, 0x00007f241404e000,
> 2021-12-06T04:24:49.1904800Z 0x00007f2414050000, 0x00007f2414051800,
> 0x00007f2414053800, 0x00007f2414055000,
> 2021-12-06T04:24:49.1905455Z 0x00007f2414057000, 0x00007f2414059000,
> 0x00007f241405a800, 0x00007f241405c800,
> 2021-12-06T04:24:49.1906098Z 0x00007f241405e000, 0x00007f2414060000,
> 0x00007f2414062000, 0x00007f2414063800,
> 2021-12-06T04:24:49.1906728Z 0x00007f22e400c800, 0x00007f2328008000,
> 0x00007f2284007000, 0x00007f22cc019800,
> 2021-12-06T04:24:49.1907396Z 0x00007f21f8004000, 0x00007f2304012800,
> 0x00007f230001b000, 0x00007f223c011000,
> 2021-12-06T04:24:49.1908080Z 0x00007f24e40c1800, 0x00007f2454001000,
> 0x00007f24e40c3000, 0x00007f2454003000,
> 2021-12-06T04:24:49.1908794Z 0x00007f24e40c5000, 0x00007f2454004800,
> 0x00007f2444002000, 0x00007f2444002800,
> 2021-12-06T04:24:49.1909522Z 0x00007f245808b800, 0x00007f24b8032800,
> 0x00007f24ac021000, 0x00007f24b8034800,
> 2021-12-06T04:24:49.1910280Z 0x00007f24b8036800, 0x00007f24ac032800,
> 0x00007f24b8052000, 0x00007f24ac033800,
> 2021-12-06T04:24:49.1911023Z 0x00007f24ac035000, 0x00007f24b8067000,
> 0x00007f24ac036000, 0x00007f241407d000,
> 2021-12-06T04:24:49.1911714Z 0x00007f24ac0a9800, 0x00007f24b4018800,
> 0x00007f254008a800, 0x00007f24ac06f800,
> 2021-12-06T04:24:49.1912565Z 0x00007f2540247800, 0x00007f21f400d000,
> 0x00007f24b4058000, 0x00007f24b4052000,
> 2021-12-06T04:24:49.1913476Z 0x00007f24ac0a3000, 0x00007f24b4052800,
> 0x00007f24b401f800, 0x00007f24b4020800,
> 2021-12-06T04:24:49.1914496Z 0x00007f24b4022000, 0x00007f24b4025000,
> 0x00007f24b4026000, 0x00007f24b4027000,
> 2021-12-06T04:24:49.1915097Z 0x00007f24ac022000, 0x00007f24b4028000,
> 0x00007f24b4029800, 0x00007f24b402b000,
> 2021-12-06T04:24:49.1915580Z 0x00007f24b402c000, 0x00007f24ac024000,
> 0x00007f2540248800, 0x00007f2540013000,
> 2021-12-06T04:24:49.1916060Z 0x00007f2540014000, 0x00007f24b402d000,
> 0x00007f24b402e000, 0x00007f24b4030000,
> 2021-12-06T04:24:49.1916716Z 0x00007f24b4031000, 0x00007f24ac025000,
> 0x00007f24ac027000, 0x00007f24b4032000,
> 2021-12-06T04:24:49.1917403Z 0x00007f24b4033800, 0x00007f2540014800,
> 0x00007f24b4035800, 0x00007f2540015800,
> 2021-12-06T04:24:49.1918098Z 0x00007f2540017800, 0x00007f24ac028000,
> 0x00007f24ac096000, 0x00007f241406b000,
> 2021-12-06T04:24:49.1918810Z 0x00007f24140a4000, 0x00007f24ac097000,
> 0x00007f24140a5000, 0x00007f24ac098000,
> 2021-12-06T04:24:49.1919516Z 0x00007f24140a6000, 0x00007f24ac099000,
> 0x00007f24ac09b000, 0x00007f24ac09d000,
> 2021-12-06T04:24:49.1920238Z 0x00007f24ac02a800, 0x00007f24140a7000,
> 0x00007f2414091000, 0x00007f2414092800,
> 2021-12-06T04:24:49.1924443Z 0x00007f2414094000, 0x00007f2414095800,
> 0x00007f2414096800, 0x00007f2414098000,
> 2021-12-06T04:24:49.1924945Z 0x00007f24b4037000, 0x00007f24140aa000,
> 0x00007f24b4038800, 0x00007f24b403a000,
> 2021-12-06T04:24:49.1925435Z 0x00007f24b403b800, 0x00007f24b403d000,
> 0x00007f24140ab000, 0x00007f24b403e000,
> 2021-12-06T04:24:49.1926138Z 0x00007f24140ac800, 0x00007f24b403f000,
> 0x00007f2540018800, 0x00007f254001a000,
> 2021-12-06T04:24:49.1926888Z 0x00007f24140ad800, 0x00007f24b4040800,
> 0x00007f24b4042000, 0x00007f24b4043800,
> 2021-12-06T04:24:49.1927871Z 0x00007f24b4045000, 0x00007f24140af000,
> 0x00007f24140b1000, 0x00007f24b4046000,
> 2021-12-06T04:24:49.1928615Z 0x00007f24b4047800, 0x00007f24b4049000,
> 0x00007f24b404a800, 0x00007f2414088000,
> 2021-12-06T04:24:49.1929344Z 0x00007f2414089800, 0x00007f24b404b000,
> 0x00007f24b404c800, 0x00007f24b405b000,
> 2021-12-06T04:24:49.1930089Z 0x00007f24b405c800, 0x00007f24b405d800,
> 0x00007f24b405f000, 0x00007f24b4060000,
> 2021-12-06T04:24:49.1930874Z 0x00007f24b4061800, 0x00007f24b4062800,
> 0x00007f24b4064000, 0x00007f24b4065800,
> 2021-12-06T04:24:49.1931655Z 0x00007f24b4066800, 0x00007f24b4068000,
> 0x00007f241408a800, 0x00007f241408c000,
> 2021-12-06T04:24:49.1932594Z 0x00007f241408e000, 0x00007f241407f800,
> 0x00007f24b4069000, 0x00007f24b406a800,
> 2021-12-06T04:24:49.1933513Z 0x00007f2414080800, 0x00007f2414082000,
> 0x00007f24ac02b800, 0x00007f24b406c000,
> 2021-12-06T04:24:49.1934301Z 0x00007f24ac02c000, 0x00007f24b406d000,
> 0x00007f24b406e800, 0x00007f24b4070800,
> 2021-12-06T04:24:49.1935060Z 0x00007f24b4071800, 0x00007f24b4073000,
> 0x00007f24b4074800, 0x00007f2540306000,
> 2021-12-06T04:24:49.1935827Z 0x00007f2540307800, 0x00007f24b4075800,
> 0x00007f24b4076800, 0x00007f2540309000,
> 2021-12-06T04:24:49.1936660Z 0x00007f24ac02d800, 0x00007f254030a000,
> 0x00007f24b4078800, 0x00007f24ac02e800,
> 2021-12-06T04:24:49.1937398Z 0x00007f24b4079800, 0x00007f24b407a800,
> 0x00007f24ac030000, 0x00007f24ac070800,
> 2021-12-06T04:24:49.1938146Z 0x00007f24b407b800, 0x00007f24ac071800,
> 0x00007f24b407d000, 0x00007f24ac072800,
> 2021-12-06T04:24:49.1938914Z 0x00007f24b407e800, 0x00007f24ac074000,
> 0x00007f24b407f800, 0x00007f24b4081800,
> 2021-12-06T04:24:49.1939771Z 0x00007f254030b000, 0x00007f2540068800,
> 0x00007f254006a000, 0x00007f24ac075000,
> 2021-12-06T04:24:49.1940516Z 0x00007f24ac077000, 0x00007f24ac079000,
> 0x00007f24b4082800, 0x00007f24b4084000,
> 2021-12-06T04:24:49.1941260Z 0x00007f254006b000, 0x00007f254006c000,
> 0x00007f24b4085000, 0x00007f24b4086800,
> 2021-12-06T04:24:49.1942145Z 0x00007f24b4088800, 0x00007f24ac07a000,
> 0x00007f24ac07b800, 0x00007f254006d800,
> 2021-12-06T04:24:49.1943222Z 0x00007f24ac07c800, 0x00007f24ac07e000,
> 0x00007f24ac080000, 0x00007f24ac081800,
> 2021-12-06T04:24:49.1944028Z 0x00007f24ac083000, 0x00007f24140db000,
> 0x00007f2414084000, 0x00007f2414086000,
> 2021-12-06T04:24:49.1944838Z 0x00007f24140c2800, 0x00007f254006e800,
> 0x00007f2540082000, 0x00007f2540084000,
> 2021-12-06T04:24:49.1945905Z 0x00007f24140c3000, 0x00007f24ac084000,
> 0x00007f24ac085800, 0x00007f2540085000,
> 2021-12-06T04:24:49.1946697Z 0x00007f2540086800, 0x00007f24ac087000,
> 0x00007f2540088000, 0x00007f2540209800,
> 2021-12-06T04:24:49.1947452Z 0x00007f24140c4000, 0x00007f24140c6000,
> 0x00007f24140c8000, 0x00007f254020b000,
> 2021-12-06T04:24:49.1948246Z 0x00007f254020c800, 0x00007f24140c8800,
> 0x00007f24140ca000, 0x00007f24140cc000,
> 2021-12-06T04:24:49.1949033Z 0x00007f254020d800, 0x00007f24ac088000,
> 0x00007f254020e800, 0x00007f24ac001000,
> 2021-12-06T04:24:49.1949834Z 0x00007f2540210800, 0x00007f254001c800,
> 0x00007f24140cd000, 0x00007f24140cf000,
> 2021-12-06T04:24:49.1950625Z 0x00007f254001e000, 0x00007f24140d0800,
> 0x00007f254001f800, 0x00007f24140e0000,
> 2021-12-06T04:24:49.1951396Z 0x00007f2540021000, 0x00007f24140e1800,
> 0x00007f2540023000, 0x00007f24140e3800,
> 2021-12-06T04:24:49.1952354Z 0x00007f2540025000, 0x00007f2540027800,
> 0x00007f24ac002000, 0x00007f24ac005000,
> 2021-12-06T04:24:49.1953367Z 0x00007f24b40f9800, 0x00007f24b40fb800,
> 0x00007f24ac006800, 0x00007f24b40fd000,
> 2021-12-06T04:24:49.1953862Z 0x00007f2540029800, 0x00007f25402f0000,
> 0x00007f25402f2000, 0x00007f24ac008000,
> 2021-12-06T04:24:49.1954520Z 0x00007f25402f3800, 0x00007f24ac00a000,
> 0x00007f24ac00c800, 0x00007f25402f5000,
> 2021-12-06T04:24:49.1955005Z 0x00007f25402f7800, 0x00007f24ac00e800,
> 0x00007f24ac010000, 0x00007f24ac012800,
> 2021-12-06T04:24:49.1955688Z 0x00007f25402f9800, 0x00007f24ac014000,
> 0x00007f24ac016000, 0x00007f24ac018000,
> 2021-12-06T04:24:49.1956176Z 0x00007f24ac01a000, 0x00007f25402fb000,
> 0x00007f25402fd000, 0x00007f2540255800,
> 2021-12-06T04:24:49.1956653Z 0x00007f2540257800, 0x00007f24ac01b000,
> 0x00007f24ac01d000, 0x00007f24ac01f800,
> 2021-12-06T04:24:49.1957118Z 0x00007f24b40fe800, 0x00007f24ac037800,
> 0x00007f24ac039000, 0x00007f24ac03b800,
> 2021-12-06T04:24:49.1957598Z 0x00007f24ac03d800, 0x00007f24b4100800,
> 0x00007f24ac03e800, 0x00007f24ac040000,
> 2021-12-06T04:24:49.1958086Z 0x00007f24b4102800, 0x00007f24b4104800,
> 0x00007f24b4107000, 0x00007f2540258800,
> 2021-12-06T04:24:49.1958567Z 0x00007f24b4108000, 0x00007f254025a000,
> 0x00007f24ac042000, 0x00007f254025b800,
> 2021-12-06T04:24:49.1959126Z 0x00007f254025e000, 0x00007f24b4109000,
> 0x00007f24b410b800, 0x00007f2540260000,
> 2021-12-06T04:24:49.1960049Z 0x00007f2540261800, 0x00007f24b410d800,
> 0x00007f2540263800, 0x00007f2540002800,
> 2021-12-06T04:24:49.1960764Z 0x00007f2540004800, 0x00007f24b401b800,
> 0x00007f24b401e800, 0x00007f24b4114000,
> 2021-12-06T04:24:49.1961638Z 0x00007f254c006800
> 2021-12-06T04:24:49.1962301Z }
> 2021-12-06T04:24:49.1962496Z
> 2021-12-06T04:24:49.1963236Z "main" #1 prio=5 os_prio=0 cpu=3941.93ms
> elapsed=12601.44s tid=0x00007f2598028000 nid=0x3586 waiting on condition
> [0x00007f25a129c000]
> 2021-12-06T04:24:49.1963791Z java.lang.Thread.State: WAITING (parking)
> 2021-12-06T04:24:49.1964243Z at
> jdk.internal.misc.Unsafe.park(java.base@11.0.10/Native Method)
> 2021-12-06T04:24:49.1965467Z - parking to wait for <0x00000000816de610> (a
> java.util.concurrent.CompletableFuture$Signaller)
> 2021-12-06T04:24:49.1966054Z at
> java.util.concurrent.locks.LockSupport.park(java.base@11.0.10/LockSupport.java:194)
> 2021-12-06T04:24:49.1966626Z at
> java.util.concurrent.CompletableFuture$Signaller.block(java.base@11.0.10/CompletableFuture.java:1796)
> 2021-12-06T04:24:49.1967433Z at
> java.util.concurrent.ForkJoinPool.managedBlock(java.base@11.0.10/ForkJoinPool.java:3128)
> 2021-12-06T04:24:49.1967965Z at
> java.util.concurrent.CompletableFuture.waitingGet(java.base@11.0.10/CompletableFuture.java:1823)
> 2021-12-06T04:24:49.1968522Z at
> java.util.concurrent.CompletableFuture.get(java.base@11.0.10/CompletableFuture.java:1998)
> 2021-12-06T04:24:49.1969094Z at
> org.apache.flink.test.util.TestUtils.submitJobAndWaitForResult(TestUtils.java:74)
> 2021-12-06T04:24:49.1970124Z at
> org.apache.flink.test.checkpointing.StreamFaultToleranceTestBase.runCheckpointedProgram(StreamFaultToleranceTestBase.java:124)
> 2021-12-06T04:24:49.1970886Z at
> jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@11.0.10/Native
> Method)
> 2021-12-06T04:24:49.1971968Z at
> jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@11.0.10/NativeMethodAccessorImpl.java:62)
> 2021-12-06T04:24:49.1972745Z at
> jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@11.0.10/DelegatingMethodAccessorImpl.java:43)
> 2021-12-06T04:24:49.1973551Z at
> java.lang.reflect.Method.invoke(java.base@11.0.10/Method.java:566)
> 2021-12-06T04:24:49.1974066Z at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> 2021-12-06T04:24:49.1974656Z at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 2021-12-06T04:24:49.1975236Z at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> 2021-12-06T04:24:49.1975894Z at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 2021-12-06T04:24:49.1976436Z at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 2021-12-06T04:24:49.1976965Z at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 2021-12-06T04:24:49.1977525Z at
> org.apache.flink.util.TestNameProvider$1.evaluate(TestNameProvider.java:45)
> 2021-12-06T04:24:49.1978151Z at
> org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 2021-12-06T04:24:49.1978620Z at
> org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 2021-12-06T04:24:49.1979088Z at
> org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> 2021-12-06T04:24:49.1979990Z at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> 2021-12-06T04:24:49.1980661Z at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> 2021-12-06T04:24:49.1981232Z at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 2021-12-06T04:24:49.1981722Z at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 2021-12-06T04:24:49.1982285Z at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 2021-12-06T04:24:49.1982963Z at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 2021-12-06T04:24:49.1983501Z at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 2021-12-06T04:24:49.1984216Z at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 2021-12-06T04:24:49.1984710Z at
> org.junit.runners.Suite.runChild(Suite.java:128)
> 2021-12-06T04:24:49.1985150Z at
> org.junit.runners.Suite.runChild(Suite.java:27)
> 2021-12-06T04:24:49.1985592Z at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 2021-12-06T04:24:49.1986084Z at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 2021-12-06T04:24:49.1986783Z at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 2021-12-06T04:24:49.1987435Z at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 2021-12-06T04:24:49.1988142Z at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 2021-12-06T04:24:49.1988755Z at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 2021-12-06T04:24:49.1989222Z at
> org.junit.runners.Suite.runChild(Suite.java:128)
> 2021-12-06T04:24:49.1989664Z at
> org.junit.runners.Suite.runChild(Suite.java:27)
> 2021-12-06T04:24:49.1990207Z at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 2021-12-06T04:24:49.1990907Z at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 2021-12-06T04:24:49.1991408Z at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 2021-12-06T04:24:49.1992088Z at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 2021-12-06T04:24:49.1992821Z at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 2021-12-06T04:24:49.1993304Z at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 2021-12-06T04:24:49.1993900Z at
> org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
> 2021-12-06T04:24:49.1994488Z at
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
> 2021-12-06T04:24:49.1995112Z at
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
> 2021-12-06T04:24:49.1999560Z at
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
> 2021-12-06T04:24:49.2000208Z at
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
> 2021-12-06T04:24:49.2000807Z at
> org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:158)
> 2021-12-06T04:24:49.2001423Z at
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
> 2021-12-06T04:24:49.2002128Z at
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
> 2021-12-06T04:24:49.2002952Z at
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
> 2021-12-06T04:24:49.2003562Z at
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> {code}
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=27568&view=logs&j=2c3cbe13-dee0-5837-cf47-3053da9a8a78&t=2c7d57b9-7341-5a87-c9af-2cf7cc1a37dc
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