try upgrading
On 05/04/2010 08:24 AM, Marc Wilmots wrote:
> Hi List,
>
> Since a few weeks now, I started to notice in the catalina.out log file
> messages regarding the cluster's operatability.
> It reports that a member or members in my cluster have disappeared, and
> appeared (member still alive) again. That's reasonable...the strange thing
> is that they occur at exactly the same time.
>
> Sometimes this message appears several times in a minute, and sometimes it
> doesn't appear for several minutes.
> I'm using Tomcat 6.0.18 with JDK 1.6.0_14 64bit on RedHat Linux 5.2.
>
> I'm thinking about several posibilities here, as for example a bad switch or
> something. Although, the thing is, I have other Tomcat instances in the same
> network that do not show this behavior.
>
> I would really apreciate it if someone could shed a light on what I can
> investigate next.
>
> As an example, I paste some output from my log:
>
> Apr 29, 2010 1:43:31 PM org.apache.catalina.tribes.
> group.interceptors.TcpFailureDetector memberDisappeared
> INFO: Received
> memberDisappeared[org.apache.catalina.tribes.membership.MemberImpl[tcp://{10,
> -68, 4, -36}:4003,{10, -68, 4, -36},4003, alive=23576482,id={17 96 -31 30
> -112 76 73 -38 -87 6 -74 21 -124 117 18 -66 }, payload={}, command={},
> domain={}, ]] message. Will verify.
> Apr 29, 2010 1:43:31 PM
> org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> memberDisappeared
> INFO: Verification complete. Member still
> alive[org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68, 4,
> -36}:4003,{10, -68, 4, -36},4003, alive=23576482,id={17 96 -31 30 -112 76 73
> -38 -87 6 -74 21 -124 117 18 -66 }, payload={}, command={}, domain={}, ]]
> Apr 29, 2010 1:47:59 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Member send is failing for:tcp://{10, -68, 4, -37}:4003 ; Setting
> to suspect and retrying.
> Apr 29, 2010 1:47:59 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:47:59 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:01 PM org.apache.catalina.ha.tcp.SimpleTcpCluster
> memberDisappeared
> INFO: Received member
> disappeared:org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68,
> 4, -37}:4003,{10, -68, 4, -37},4003, alive=23477210,id={96 77 36 -51 -85 -17
> 67 -53 -107 -22 9 77 -71 78 -106 -112 }, payload={}, command={}, domain={},
> ]
> Apr 29, 2010 1:48:01 PM
> org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> performBasicCheck
> INFO: Suspect member, confirmed
> dead.[org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68, 4,
> -37}:4003,{10, -68, 4, -37},4003, alive=23477210,id={96 77 36 -51 -85 -17 67
> -53 -107 -22 9 77 -71 78 -106 -112 }, payload={}, command={}, domain={}, ]]
> Apr 29, 2010 1:48:08 PM
> org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> memberDisappeared
> INFO: Received
> memberDisappeared[org.apache.catalina.tribes.membership.MemberImpl[tcp://{10,
> -68, 4, -37}:4003,{10, -68, 4, -37},4003, alive=24454627,id={96 77 36 -51
> -85 -17 67 -53 -107 -22 9 77 -71 78 -106 -112 }, payload={}, command={},
> domain={}, ]] message. Will verify.
> Apr 29, 2010 1:48:08 PM
> org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> memberDisappeared
> INFO: Verification complete. Member
> disappeared[org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68,
> 4, -37}:4003,{10, -68, 4, -37},4003, alive=24454627,id={96 77 36 -51 -85 -17
> 67 -53 -107 -22 9 77 -71 78 -106 -112 }, payload={}, command={}, domain={},
> ]]
> Apr 29, 2010 1:48:08 PM org.apache.catalina.ha.tcp.SimpleTcpCluster
> memberDisappeared
> INFO: Received member
> disappeared:org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68,
> 4, -37}:4003,{10, -68, 4, -37},4003, alive=24454627,id={96 77 36 -51 -85 -17
> 67 -53 -107 -22 9 77 -71 78 -106 -112 }, payload={}, command={}, domain={},
> ]
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Member send is failing for:tcp://{10, -68, 4, -37}:4003 ; Setting
> to suspect and retrying.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:09 PM
> org.apache.catalina.tribes.transport.nio.ParallelNioSender doLoop
> WARNING: Not retrying send for:tcp://{10, -68, 4, -37}:4003; Sender is
> disconnected.
> Apr 29, 2010 1:48:16 PM org.apache.catalina.ha.tcp.SimpleTcpCluster
> memberAdded
> INFO: Replication member
> added:org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, -68, 4,
> -37}:4003,{10, -68, 4, -37},4003, alive=1017,id={-62 69 63 -35 78 -21 64 -15
> -105 -100 127 -60 -62 115 -83 12 }, payload={}, command={}, domain={}, ]
>
>
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