Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hive >> mail # user >> hiveserver leak zookeeper connections?


Copy link to this message
-
Re: hiveserver leak zookeeper connections?
We have found one source of leak which we think we have fixed.
https://issues.apache.org/jira/browse/HIVE-3723 This is a part of hive-0.10
RC0 http://people.apache.org/~hashutosh/hive-0.10.0-rc0/ You can try hive
from there and see if this fixes this connection leaking problem.

Thanks,
Ashutosh
On Fri, Jan 4, 2013 at 10:51 PM, wzc <[EMAIL PROTECTED]> wrote:

> Hi all:
> I am using hive 0.9 and zookeeper 3.3.5, and I set
> hive.support.concurrency=true for locking. when I run query through
> hiveserver I keep receiving warnings like :
>
> 2013-01-05 12:03:56,109 WARN  zookeeper.ClientCnxn (ClientCnxn.java:run(1057)) - Session 0x0 for server data-dev-01/192.168.2.241:2181, unexpected error, closing socket connection and a
> ttempting reconnect
> java.io.IOException: Connection reset by peer
>         at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
>         at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
>         at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:218)
>         at sun.nio.ch.IOUtil.read(IOUtil.java:186)
>         at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:359)
>         at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:66
> 2013-01-05 12:03:56,350 WARN  zookeeper.ClientCnxn (ClientCnxn.java:run(1057)) - Session 0x0 for server data-dev-02/192.168.2.237:2181, unexpected error, closing socket connection and a
> ttempting reconnect
> java.io.IOException: Connection reset by peer
>         at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
>         at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
>         at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:218)
>         at sun.nio.ch.IOUtil.read(IOUtil.java:186)
>         at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:359)
>         at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:66)
>         at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:291)
>         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
> 2013-01-05 12:03:56,476 WARN  zookeeper.ClientCnxn (ClientCnxn.java:run(1057)) - Session 0x0 for server data-dev-02/192.168.2.237:2181, unexpected error, closing socket connection and a
> ttempting reconnect
> java.io.IOException: Connection reset by peer
>         at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
>         at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
>         at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:218)
>         at sun.nio.ch.IOUtil.read(IOUtil.java:186)
>         at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:359)
>         at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:66)
>         at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:291)
>         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
>
>
> and the query fails. I run 'netstat -anlp | grep 2181' on the server which hiveserver is running and find many ESTABLISHED connections:
>
> tcp6       0      0 192.168.2.241:50033     192.168.2.241:2181      ESTABLISHED 11765/java
> tcp6       0      0 192.168.2.241:2181      192.168.2.241:50024     ESTABLISHED 22103/java
> tcp6       0      0 192.168.2.241:59436     192.168.2.237:2181      ESTABLISHED 11765/java
> tcp6       0      0 192.168.2.241:50015     192.168.2.241:2181      ESTABLISHED 11765/java
> tcp6       0      0 192.168.2.241:59432     192.168.2.237:2181      ESTABLISHED 11765/java
> tcp6       0      0 192.168.2.241:2181      192.168.2.241:50014     ESTABLISHED 22103/java
> tcp6       0      0 192.168.2.241:59444     192.168.2.237:2181      ESTABLISHED 11765/java
> tcp6       0      0 192.168.2.241:2181      192.168.2.241:50029     ESTABLISHED 22103/java
> tcp6       0      0 192.168.2.241:2181      192.168.2.241:50015     ESTABLISHED 22103/java
> tcp6       0      0 192.168.2.241:50031     192.168.2.241:2181      ESTABLISHED 11765/java