I see. That helps. However, even as warnings, these go on seemingly
endlessly. Why do they not get fixed by themselves? What are we doing wrong
here?

On Tue, Jun 2, 2009 at 2:24 PM, Mahadev Konar <maha...@yahoo-inc.com> wrote:

> Hi Nitay,
>  This is not an error but should be a warning. I have opened up a jira for
> it.
>
> http://issues.apache.org/jira/browse/ZOOKEEPER-428
>
>
> The message just says that a client is connecting to a server that is
> behind
> that a server is was connected to earlier. The log should be warn and not
> error and should be fixed in the next release.
>
> mahadev
>
> On 6/2/09 2:12 PM, "Nitay" <nit...@gmail.com> wrote:
>
> > Hey guys,
> >
> > We are getting a lot of messages like this in HBase:
> >
> > [junit] 2009-06-02 11:57:23,658 ERROR [NIOServerCxn.Factory:21810]
> > server.NIOServerCnxn(514): Client has seen zxid 0xe our last zxid is 0xd
> >
> > For more context, the block it usually appears in is:
> >
> >     [junit] 2009-06-02 13:27:54,083 INFO  [main-SendThread]
> > zookeeper.ClientCnxn$SendThread(737): Priming connection to
> > java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1%0:56511
> > remote=localhost/0:0:0:0:0:0:0:1:21810]
> >     [junit] 2009-06-02 13:27:54,084 INFO  [main-SendThread]
> > zookeeper.ClientCnxn$SendThread(889): Server connection successful
> >     [junit] 2009-06-02 13:27:54,093 INFO  [NIOServerCxn.Factory:21810]
> > server.NIOServerCnxn(532): Connected to /0:0:0:0:0:0:0:1%0:56511 lastZxid
> 16
> >     [junit] 2009-06-02 13:27:54,094 ERROR [NIOServerCxn.Factory:21810]
> > server.NIOServerCnxn(543): Client has seen zxid 0x10 our last zxid is 0x4
> >     [junit] 2009-06-02 13:27:54,094 WARN  [NIOServerCxn.Factory:21810]
> > server.NIOServerCnxn(444): Exception causing close of session 0x0 due to
> > java.io.IOException: Client has seen zxid 0x10 our last zxid is 0x4
> >     [junit] 2009-06-02 13:27:54,094 DEBUG [NIOServerCxn.Facto777ry:21810]
> > server.NIOServerCnxn(447): IOException stack trace
> >     [junit] java.io.IOException: Client has seen zxid 0x10 our last zxid
> is
> > 0x4
> >     [junit]     at
> >
> org.apache.zookeeper.server.NIOServerCnxn.readConnectRequest(NIOServerCnxn.jav
> > a:544)
> >     [junit]     at
> > org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:331)
> >     [junit]     at
> >
> org.apache.zookeeper.server.NIOServerCnxn$Factory.run(NIOServerCnxn.java:176)
> >     [junit] 2009-06-02 13:27:54,094 INFO  [NIOServerCxn.Factory:21810]
> > server.NIOServerCnxn(777): closing session:0x0 NIOServerCnxn:
> > java.nio.channels.SocketChannel[connected local=/0:0:0:0:0:0:0:1%0:21810
> > remote=/0:0:0:0:0:0:0:1%0:56511]
> >     [junit] 2009-06-02 13:27:54,097 WARN  [main-SendThread]
> > zookeeper.ClientCnxn$SendThread(919): Exception closing session
> > 0x121a2a7c43a0002 to sun.nio.ch.selectionkeyi...@2c662b4e
> >     [junit] java.io.IOException: Read error rc = -1
> > java.nio.DirectByteBuffer[pos=0 lim=4 cap=4]
> >     [junit]     at
> > org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:653)
> >     [junit]     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:897)
> >     [junit] 2009-06-02 13:27:54,097 WARN  [main-SendThread]
> > zookeeper.ClientCnxn$SendThread(953): Ignoring exception during shutdown
> > input
> >     [junit] java.net.SocketException: Socket is not connected
> >     [junit]     at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
> >     [junit]     at
> > sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:640)
> >     [junit]     at
> > sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
> >     [junit]     at
> > org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:951)
> >     [junit]     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)
> >
> >
> > This happens in a seemingly endless loop. We are not quite sure what it
> > means. Can someone help shed some light on these messages?
> >
> > Thanks,
> > -n
>
>

Reply via email to