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https://issues.apache.org/jira/browse/HBASE-25905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17452162#comment-17452162
]
Hudson commented on HBASE-25905:
--------------------------------
Results for branch branch-2.4
[build #248 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2.4/248/]:
(x) *{color:red}-1 overall{color}*
----
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2.4/248/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2.4/248/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2.4/248/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
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(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> Shutdown of WAL stuck at waitForSafePoint
> -----------------------------------------
>
> Key: HBASE-25905
> URL: https://issues.apache.org/jira/browse/HBASE-25905
> Project: HBase
> Issue Type: Bug
> Components: regionserver, wal
> Affects Versions: 3.0.0-alpha-1, 2.0.0
> Reporter: Xiaolin Ha
> Assignee: Duo Zhang
> Priority: Blocker
> Fix For: 2.5.0, 3.0.0-alpha-2, 2.4.9
>
> Attachments: rs-jstack1, rs-jstack2, wal-stuck-error-logs.png
>
>
> We use the fan-out HDFS OutputStream and AsyncFSWAL on our clusters, but met
> the problem than RS can not exit completely for several hours util manual
> interventions.
> The two jstacks below show that the regionserver thread can waiting
> unlimitedly in both
> AsyncFSWAL#waitForSafePoint()
> {code:java}
> "regionserver/gh-data-hbase-finance08.mt/10.22.179.24:16020" #29 prio=5
> os_prio=0 tid=0x00007fb2feb5c000 nid=0xa92b waiting on condition
> [0x00007f9ccb992000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00007faea229a9d0> (a
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitUninterruptibly(AbstractQueuedSynchronizer.java:1976)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.waitForSafePoint(AsyncFSWAL.java:687)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.doShutdown(AsyncFSWAL.java:743)
> at
> org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.shutdown(AbstractFSWAL.java:900)
> at
> org.apache.hadoop.hbase.wal.AbstractFSWALProvider.shutdown(AbstractFSWALProvider.java:182)
> at
> org.apache.hadoop.hbase.wal.RegionGroupingProvider.shutdown(RegionGroupingProvider.java:232)
> at
> org.apache.hadoop.hbase.wal.WALFactory.shutdown(WALFactory.java:271)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.shutdownWAL(HRegionServer.java:1405)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:1147)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> and the log roller stuck at waiting for lock
> {code:java}
> "regionserver/gh-data-hbase-finance08.mt/10.22.179.24:16020.logRoller" #322
> daemon prio=5 os_prio=0 tid=0x00007fb2e11a4000 nid=0xa953 waiting on
> condition [0x00007f9cbd9f1000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00007faea1217048> (a
> java.util.concurrent.locks.ReentrantLock$FairSync)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
> at
> java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:224)
> at
> java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
> at
> org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:822)
> at
> org.apache.hadoop.hbase.wal.AbstractWALRoller$RollController.rollWal(AbstractWALRoller.java:269)
> at
> org.apache.hadoop.hbase.wal.AbstractWALRoller.run(AbstractWALRoller.java:186){code}
>
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