Please see:
https://issues.apache.org/jira/browse/ZOOKEEPER-846
On Thu, Aug 12, 2010 at 10:00 AM, Patrick Hunt ph...@apache.org wrote:
Great bug report Ted, the stack trace in particular is very useful.
It looks like a timing bug where the client is not shutting down cleanly on
the close call. I reviewed the code in question but nothing pops out at me.
Also the logs just show us shutting down, nothing else from zk in there.
Create a jira and attach all the detail you have available.
Patrick
On 08/11/2010 03:21 PM, Ted Yu wrote:
Hi,
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=0x2aabb849c800 nid=0x6c60 waiting on
condition [0x]
java.lang.Thread.State: RUNNABLE
regionserver/10.32.42.245:60020 prio=10 tid=0x2aabb84ce000
nid=0x6c81
in Object.wait() [0x43755000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on0x2aaab76633c0 (a
org.apache.zookeeper.ClientCnxn$Packet)
at java.lang.Object.wait(Object.java:485)
at
org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1099)
- locked0x2aaab76633c0 (a
org.apache.zookeeper.ClientCnxn$Packet)
at org.apache.zookeeper.ClientCnxn.close(ClientCnxn.java:1077)
at org.apache.zookeeper.ZooKeeper.close(ZooKeeper.java:505)
- locked0x2aaabf5e0c30 (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=0x43474000 nid=0x6c80
waiting
on condition [0x413f3000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for0x2aaabf6e9150 (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)
RMI TCP Accept-0 daemon prio=10 tid=0x2aabb822c800 nid=0x6c7d
runnable
[0x40752000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked0x2aaabf585578 (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:34)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341)
at java.lang.Thread.run(Thread.java:619)
