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Posted to issues@activemq.apache.org by "Nazar Vishka (JIRA)" <ji...@apache.org> on 2018/02/15 15:20:00 UTC

[jira] [Commented] (AMQ-6666) Failover Transport - send timeout not working

    [ https://issues.apache.org/jira/browse/AMQ-6666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365717#comment-16365717 ] 

Nazar Vishka commented on AMQ-6666:
-----------------------------------

I have the similar issue AMQ-6888. I've create a small [application|https://github.com/leofromgroza/amq-failover-issue] that can be used for reproducing it.

> Failover Transport - send timeout not working
> ---------------------------------------------
>
>                 Key: AMQ-6666
>                 URL: https://issues.apache.org/jira/browse/AMQ-6666
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.14.0
>            Reporter: Martin Lichtin
>            Priority: Critical
>
> Running into a situation with the Failover Transport not respecting the timeout that's been set. The symptom is endless messages of this kind:
> {noformat}
> 2017-04-29 09:48:26,128 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> 2017-04-29 09:48:26,228 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> 2017-04-29 09:48:26,329 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> 2017-04-29 09:48:26,429 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> 2017-04-29 09:48:26,530 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> ...
> 2017-04-29 09:48:33,270 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> 2017-04-29 09:48:33,371 | TRACE | .engine.cfgengine.in]-11 | FailoverTransport                | sport.failover.FailoverTransport 615 | 81 - org.apache.activemq.activemq-osgi - 5.14.0 | Waiting for transport to reconnect..: TransactionInfo {commandId = 127798, responseRequired = true, type = 7, connectionId = ID:inucdev4-57330-1493370444659-3:3, transactionId = XID:[1096044365,globalId=6374726c6366672d656e67696e653130333530323030303034,branchId=6374726c6366672d656e67696e6531313036383134]}
> {noformat}
> The code seems to never get out of this loop:
> {noformat}
>     while (transport == null && !disposed && connectionFailure == null
>             && !Thread.currentThread().isInterrupted() && willReconnect()) {
>         LOG.trace("Waiting for transport to reconnect..: {}", command);
>         long end = System.currentTimeMillis();
>         if (command.isMessage() && timeout > 0 && (end - start > timeout)) {
>             timedout = true;
>             LOG.info("Failover timed out after {} ms", (end - start));
>             break;
>         }
>         try {
>             reconnectMutex.wait(100);
>         } catch (InterruptedException e) {
>             Thread.currentThread().interrupt();
>             LOG.debug("Interupted:", e);
>         }
>         transport = connectedTransport.get();
>     }
> {noformat}
> The timeout is set to 5000ms and should have hit a long time ago, but as "command.isMessage()" returns false, it endlessly stays inside the loop.
> The "command.isMessage()" condition should likely be removed.
> Currently running tests with a patched ActiveMQ, and the situation has improved and fail-over seems to have worked (mostly). (Only seeing an issue with a topic consumer that has not reconnected.)



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