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Posted to dev@kafka.apache.org by "Jason Rosenberg (JIRA)" <ji...@apache.org> on 2015/06/04 22:53:39 UTC
[jira] [Updated] (KAFKA-2252) Socket connection closing is logged,
but not corresponding opening of socket
[ https://issues.apache.org/jira/browse/KAFKA-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jason Rosenberg updated KAFKA-2252:
-----------------------------------
Description:
(using 0.8.2.1)
We see a large number of "Closing socket connection" logging to the broker logs, e.g.:
{code}
2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /1.2.3.4.
2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /5.6.7.8.
2015-06-04 16:49:30,695 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /9.10.11.12.
2015-06-04 16:49:31,465 INFO [kafka-network-thread-27330-1] network.Processor - Closing socket connection to /13.14.15.16.
2015-06-04 16:49:31,806 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /17.18.19.20.
2015-06-04 16:49:31,842 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /21.22.23.24.
{code}
However, we have no corresponding logging for when these connections are established. Consequently, it's not very useful to see a flood of closed connections, etc. I'd think we'd want to see the corresponding 'connection established' messages, also logged as INFO.
Occasionally, we see a flood of the above messages, and have no idea as to whether it indicates a problem, etc. (Sometimes it might be due to an ongoing rolling restart, or a change in the Zookeeper cluster).
was:
(using 0.8.2.1)
We see a large number of "Closing socket connection" logging to the broker logs, e.g.:
{code}
2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /1.2.3.4.
2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /5.6.7.8.
2015-06-04 16:49:30,695 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /9.10.11.12.
2015-06-04 16:49:31,465 INFO [kafka-network-thread-27330-1] network.Processor - Closing socket connection to /13.14.15.16.
2015-06-04 16:49:31,806 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /17.18.19.20.
2015-06-04 16:49:31,842 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /21.22.23.24.
{code}
However, we have no corresponding for when these connections are established. Consequently, it's not very useful to see a flood closed connections, etc. I'd think we'd want to see the corresponding 'connection established' messages, also logged as INFO.
Occasionally, we see a flood of the above messages, and have no idea as to whether it indicates a problem, etc. (Sometimes it might be due to an ongoing rolling restart, or a change in the Zookeeper cluster).
> Socket connection closing is logged, but not corresponding opening of socket
> ----------------------------------------------------------------------------
>
> Key: KAFKA-2252
> URL: https://issues.apache.org/jira/browse/KAFKA-2252
> Project: Kafka
> Issue Type: Bug
> Reporter: Jason Rosenberg
>
> (using 0.8.2.1)
> We see a large number of "Closing socket connection" logging to the broker logs, e.g.:
> {code}
> 2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /1.2.3.4.
> 2015-06-04 16:49:30,262 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /5.6.7.8.
> 2015-06-04 16:49:30,695 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /9.10.11.12.
> 2015-06-04 16:49:31,465 INFO [kafka-network-thread-27330-1] network.Processor - Closing socket connection to /13.14.15.16.
> 2015-06-04 16:49:31,806 INFO [kafka-network-thread-27330-0] network.Processor - Closing socket connection to /17.18.19.20.
> 2015-06-04 16:49:31,842 INFO [kafka-network-thread-27330-2] network.Processor - Closing socket connection to /21.22.23.24.
> {code}
> However, we have no corresponding logging for when these connections are established. Consequently, it's not very useful to see a flood of closed connections, etc. I'd think we'd want to see the corresponding 'connection established' messages, also logged as INFO.
> Occasionally, we see a flood of the above messages, and have no idea as to whether it indicates a problem, etc. (Sometimes it might be due to an ongoing rolling restart, or a change in the Zookeeper cluster).
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