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https://issues.apache.org/jira/browse/ZOOKEEPER-513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Hunt resolved ZOOKEEPER-513.
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Resolution: Cannot Reproduce
> C client disconnect with stand-alone server abnormally
> ------------------------------------------------------
>
> Key: ZOOKEEPER-513
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-513
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.2.0
> Environment: Linux 2.6.9-52bs #2 SMP Fri Jan 26 13:34:38 CST 2007
> x86_64 x86_64 x86_64 GNU/Linux
> Jdk: 1.6.0_14
> Reporter: Qian Ye
> Fix For: 3.5.0
>
>
> The client 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_INFO@log_env@545: Client
> environment:zookeeper.version=zookeeper C client 3.2.0
> 606 2009-08-19 21:36:18,067:3813(0x9556c520):ZOO_INFO@log_env@549: Client
> environment:host.name=jx-ziyuan-test00.jx.baidu.com
> 607 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@log_env@557: Client
> environments.name=Linux
> 608 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@log_env@558: Client
> environments.arch=2.6.9-52bs
> 609 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@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_INFO@log_env@567: Client
> environment:user.name=club
> 611 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@log_env@577: Client
> environment:user.home=/home/club
> 612 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@log_env@589: Client
> environment:user.dir=/home/club/user/luhongbo/auto-exchanger
> 613 2009-08-19 21:36:18,068:3813(0x9556c520):ZOO_INFO@zookeeper_init@613:
> Initiating client connection, host=127.0.0.1:2181,127.0.0.1:2182
> sessionTimeout=2000 wa tcher=0x408c56 sessionId=0x0
> sessionPasswd=<null> context=(nil) flags=0
> 614 2009-08-19 21:36:18,069:3813(0x41401960):ZOO_INFO@check_events@1439:
> initiated connection to server [127.0.0.1:2181]
> 615 2009-08-19 21:36:18,070:3813(0x41401960):ZOO_INFO@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_WARN@zookeeper_interest@1335: Exceeded
> deadline by 520ms
> 617 2009-08-20
> 03:08:52,332:3813(0x41401960):ZOO_WARN@zookeeper_interest@1335: Exceeded
> deadline by 14ms
> 618 2009-08-20
> 03:09:04,666:3813(0x41401960):ZOO_WARN@zookeeper_interest@1335: Exceeded
> deadline by 48ms
> 619 2009-08-20
> 03:09:09,733:3813(0x41401960):ZOO_WARN@zookeeper_interest@1335: Exceeded
> deadline by 24ms
> 620 2009-08-20
> 03:09:20,289:3813(0x41401960):ZOO_WARN@zookeeper_interest@1335: Exceeded
> deadline by 264ms
> 621 2009-08-20
> 03:09:20,295:3813(0x41401960):ZOO_ERROR@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_WARN@zookeeper_interest@1335: Exceeded
> deadline by 284ms
> 623 2009-08-20
> 03:09:20,309:3813(0x41401960):ZOO_ERROR@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_INFO@check_events@1439:
> initiated connection to server [127.0.0.1:2181]
> 625 2009-08-20 03:09:20,552:3813(0x41401960):ZOO_INFO@check_events@1484:
> connected to server [127.0.0.1:2181] with session id=1232c1688a20093
> The problem happened at 03:09:20, it seems that the zookeeper refused to
> accept the client, and I don't know why.
> the zoo.cfg is like:
> # The number of milliseconds of each tick
> tickTime=500
> # The number of ticks that the initial
> # synchronization phase can take
> initLimit=10
> # The number of ticks that can pass between
> # sending a request and getting an acknowledgement
> syncLimit=5
> # the directory where the snapshot is stored.
> dataDir=./data/
> # the port at which the clients will connect
> clientPort=2181
> the C client used multi-thread library, and the session timeout is set to
> 2000 when the zookeeper handler was initialized.
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