Hi Ben:

I used multi-thread library, and the session timeout is set to 2000 when the
zookeeper handler was initialized.

On Thu, Aug 20, 2009 at 9:52 PM, Benjamin Reed <br...@yahoo-inc.com> wrote:

> are you using the single threaded or multithreaded C library? the exceeded
> deadline message means that our thread was supposed to get control after a
> certain period, but we got control that many milliseconds late. what is your
> session timeout?
>
> ben
>
> ________________________________________
> From: Qian Ye [yeqian....@gmail.com]
> Sent: Thursday, August 20, 2009 3:17 AM
> To: zookeeper-user
> Subject: A question about "Connection timed out" and "operation timeout"
>
> Hi guys:
>
> I met the problem again: an ephemeral node disappeared, and I found it
> because my application got a "operation timeout"
>
> My application which created an ephemeral node at the zookeeper server,
> printed the following log
>
> *WARNING: 08-20 03:09:20:  auto * 182894118176
> [logid:][reqip:][auto_exchanger_zk_basic.cpp:605]get children
> fail.[/forum/elect_nodes][-7][operation timeout]*
>
> and the Zookeeper client printed the following log (the log level is INFO)
>
> 2009-08-19 21:36:18,067:3813(0x9556c520):zoo_i...@log_env@545: Client
> environment:zookeeper.version=zookeeper C client 3.2.0
>    606 2009-08-19 21:36:18,067:3813(0x9556c520):zoo_i...@log_env@549:
> Client environment:host.name=jx-ziyuan-test00.jx.baidu.com
>    607 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@557:
> Client environments.name=Linux
>    608 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@558:
> Client environments.arch=2.6.9-52bs
>    609 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@559:
> Client environments.version=#2 SMP Fri Jan 26 13:34:38 CST 2007
>    610 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@567:
> Client environment:user.name=club
>    611 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@577:
> Client environment:user.home=/home/club
>    612 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@log_env@589:
> Client environment:user.dir=/home/club/user/luhongbo/auto-exchanger
>    613 2009-08-19 21:36:18,068:3813(0x9556c520):zoo_i...@zookeeper_init
> @613:
> Initiating client connection,
> host=127.0.0.1:2181,127.0.0.1:2182sessionTimeout=2000 wa
> tcher=0x408c56 sessionId=0x0
> sessionPasswd=<null> context=(nil) flags=0
>    614 2009-08-19 21:36:18,069:3813(0x41401960):zoo_i...@check_events
> @1439:
> initiated connection to server [127.0.0.1:2181]
>    615 2009-08-19 21:36:18,070:3813(0x41401960):zoo_i...@check_events
> @1484:
> connected to server [127.0.0.1:2181] with session id=1232c1688a20093
>    616 2009-08-20
> 02:48:01,780:3813(0x41401960):zoo_w...@zookeeper_interest@1335:
> Exceeded deadline by 520ms
>    617 2009-08-20
> 03:08:52,332:3813(0x41401960):zoo_w...@zookeeper_interest@1335:
> Exceeded deadline by 14ms
>    618 2009-08-20
> 03:09:04,666:3813(0x41401960):zoo_w...@zookeeper_interest@1335:
> Exceeded deadline by 48ms
>    619 2009-08-20
> 03:09:09,733:3813(0x41401960):zoo_w...@zookeeper_interest@1335:
> Exceeded deadline by 24ms
>    620 *2009-08-20
> 03:09:20,289:3813(0x41401960):zoo_w...@zookeeper_interest@1335: Exceeded
> deadline by 264ms*
>    621 *2009-08-20
> 03:09:20,295:3813(0x41401960):zoo_er...@handle_socket_error_msg@1388:
> Socket
> [127.0.0.1:2181] zk retcode=-7, errno=110(Connection timed out): conn
> ection timed out (exceeded timeout by 264ms)*
>    622 *2009-08-20
> 03:09:20,309:3813(0x41401960):zoo_w...@zookeeper_interest@1335: Exceeded
> deadline by 284ms*
>    623 *2009-08-20
> 03:09:20,309:3813(0x41401960):zoo_er...@handle_socket_error_msg@1433:
> Socket
> [127.0.0.1:2182] zk retcode=-4, errno=111(Connection refused):
> server         refused to accept the client*
>    624 *2009-08-20 03:09:20,353:3813(0x41401960):zoo_i...@check_events
> @1439:
> initiated connection to server [127.0.0.1:2181]*
>    625 *2009-08-20 03:09:20,552:3813(0x41401960):zoo_i...@check_events
> @1484:
> connected to server [127.0.0.1:2181] with session id=1232c1688a20093*
>
> I don't know why the "connection timed out" happened at *2009-08-20
> 03:09:20,295:3813, *and the server refuse to accept the client. Could some
> one give me any hints? And I'm not sure the meaning of "Exceeded deadline
> by
> xxms", need some help too.
>
>
> P.S. I used the Zookeeper 3.2.0 (Server and C Client API) and run a
> stand-alone instance
>
> Thx all~
>
> --
> With Regards!
>
> Ye, Qian
> Made in Zhejiang University
>



-- 
With Regards!

Ye, Qian
Made in Zhejiang University

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