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From Martin Lichtin <lich...@yahoo.com.INVALID>
Subject Re: Re: Failover - send timeout not working
Date Sun, 30 Apr 2017 20:04:36 GMT
JIRA: https://issues.apache.org/jira/browse/AMQ-6666

I'm running now with a patched version without the "command.isMessage()" condition and fail-over
behaviour has substantially improved.
Can't really judge whether it is the correct fix, however.

- Martin


On 30.04.2017 18:50, Tim Bain wrote:
> It does seem like there needs to be another path out of that code block,
> though I wonder if the expectation was that nothing that wasn't a message
> would ever make it to that block. Either way, it seems to not be working
> the way it should, so please submit a bug in JIRA for the problem.
>
> Tim
>
> On Apr 29, 2017 4:24 AM, "Martin Lichtin" <lichtin@yahoo.com.invalid> wrote:
>
>> I'm running into a situation with the Failover Transport not respecting
>> the timeout that's been set.
>> The symptom is endless messages of this kind:
>>
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> ...
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>> 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=63747
>> 26c6366672d656e67696e653130333530323030303034,branchId=63747
>> 26c6366672d656e67696e6531313036383134]}
>>
>>
>> It seems to never get out of this loop:
>>
>>      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();
>>      }
>>
>> The timeout is set to 5000ms and should have hit a long time ago, but I
>> guess "command.isMessage()" returns false in this situation?
>> Any reason this condition is needed? It seems to me anything that can't be
>> sent within the timeout should cause the throw.
>>
>> - Martin
>>
>>


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