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  1. MariaDB MaxScale
  2. MXS-3342

Persistent connections cause signal 11 when no matching connection is found

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.5.6
    • Fix Version/s: 2.5.7
    • Component/s: Core
    • Labels:
      None
    • Environment:
      CentOS Linux release 7.8.2003 (Core)
      Kernel 4.4.241-1.el7.elrepo.x86_64
      mariadb Ver 15.1 Distrib 10.4.17-MariaDB, for Linux (x86_64) using readline 5.1
      MaxScale 2.5.6 - fddc0526ee79ac9a87f7a7170f3204263240ab57

      Description

      2020-12-16 13:50:37   alert  : (24) (db3) MaxScale 2.5.6 received fatal signal 11. Commit ID: fddc0526ee79ac9a87f7a7170f3204263240ab57 System name: Linux Release string: NAME="CentOS Linux"
      2020-12-16 13:50:37   alert  : (24) (db3) Statement currently being classified: none/unknown
      2020-12-16 13:50:39   alert  : (24) (db3)
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN8maxscale13RoutingWorker25get_backend_dcb_from_poolEP6SERVERP11MXS_SESSIONPNS_9ComponentE+0x200): server/core/routingworker.cc:568
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN8maxscale13RoutingWorker15get_backend_dcbEP6SERVERP11MXS_SESSIONPNS_9ComponentE+0x91): server/core/routingworker.cc:530
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN14ServerEndpoint7connectEv+0x7d): server/core/server.cc:932 (discriminator 1)
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN8maxscale7Backend7connectEPSt4listISt10shared_ptrINS_14SessionCommandEESaIS4_EE+0x1f): server/core/backend.cc:174
        /usr/lib64/maxscale/libreadwritesplit.so(_ZN14RWSplitSession18prepare_connectionEPN8maxscale9RWBackendE+0x19): server/modules/routing/readwritesplit/rwsplit_route_stmt.cc:48
        /usr/lib64/maxscale/libreadwritesplit.so(_ZN14RWSplitSession16open_connectionsEv+0x5a4): server/modules/routing/readwritesplit/rwsplit_select_backends.cc:463
        /usr/lib64/maxscale/libreadwritesplit.so(_ZN14RWSplitSession6createEP7RWSplitP11MXS_SESSIONRKSt6vectorIPN8maxscale8EndpointESaIS7_EE+0x131): server/modules/routing/readwritesplit/rwsplitsession.cc:67
        /usr/lib64/maxscale/libreadwritesplit.so(_ZN8maxscale6RouterI7RWSplit14RWSplitSessionE10newSessionEP10mxs_routerP11MXS_SESSIONPNS_8UpstreamERKSt6vectorIPNS_8EndpointESaISC_EE+0x14): include/maxscale/router.hh:404
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN15ServiceEndpoint7connectEv+0x10d): server/core/service.cc:1291
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7Session5startEv+0x21): server/core/session.cc:1283
        /usr/lib64/maxscale/libmariadbclient.so(_ZN23MariaDBClientConnection22process_authenticationENS_8AuthTypeE+0x319): server/modules/protocol/MariaDB/mariadb_client.cc:615
        /usr/lib64/maxscale/libmariadbclient.so(_ZN23MariaDBClientConnection17ready_for_readingEP3DCB+0x39): server/modules/protocol/MariaDB/mariadb_client.cc:1418
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN3DCB14process_eventsEj+0x69): server/core/dcb.cc:1292
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN3DCB13event_handlerEPS_j+0x21): server/core/dcb.cc:1351
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x1be): maxutils/maxbase/src/worker.cc:879
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:574
        /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(+0x228a0f): thread48.o:?
        /lib64/libpthread.so.0(+0x7ea5): pthread_create.c:?
        /lib64/libc.so.6(clone+0x6d): ??:?
      

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            Assignee:
            markus makela markus makela
            Reporter:
            dicode Tim Westervoorde
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              Updated:
              Resolved:

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