zookeeper client doesn't shut down cleanly on the close call
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Key: ZOOKEEPER-846
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-846
Project: Zookeeper
Issue Type: Bug
Components: java client
Affects Versions: 3.2.2
Reporter: Ted Yu
Using HBase 0.20.6 (with HBASE-2473) we encountered a situation where
Regionserver
process was shutting down and seemed to hang.
Here is the bottom of region server log:
http://pastebin.com/YYawJ4jA
zookeeper-3.2.2 is used.
Your comment is welcome.
Here is relevant portion from jstack - I attempted to attach jstack twice in my
email to d...@hbase.apache.org but failed:
"DestroyJavaVM" prio=10 tid=0x00002aabb849c800 nid=0x6c60 waiting on condition
[0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"regionserver/10.32.42.245:60020" prio=10 tid=0x00002aabb84ce000 nid=0x6c81 in
Object.wait() [0x0000000043755000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00002aaab76633c0> (a
org.apache.zookeeper.ClientCnxn$Packet)
at java.lang.Object.wait(Object.java:485)
at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1099)
- locked <0x00002aaab76633c0> (a org.apache.zookeeper.ClientCnxn$Packet)
at org.apache.zookeeper.ClientCnxn.close(ClientCnxn.java:1077)
at org.apache.zookeeper.ZooKeeper.close(ZooKeeper.java:505)
- locked <0x00002aaabf5e0c30> (a org.apache.zookeeper.ZooKeeper)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.close(ZooKeeperWrapper.java:681)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:654)
at java.lang.Thread.run(Thread.java:619)
"main-EventThread" daemon prio=10 tid=0x0000000043474000 nid=0x6c80 waiting on
condition [0x00000000413f3000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00002aaabf6e9150> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
at
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:414)
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