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https://issues.apache.org/jira/browse/ZOOKEEPER-2455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353505#comment-15353505
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Patrick Hunt commented on ZOOKEEPER-2455:
-----------------------------------------
Would also be useful to see logs (client/server). Any chance you could create a
test case that reproduces?
> unexpected server response ZRUNTIMEINCONSISTENCY
> ------------------------------------------------
>
> Key: ZOOKEEPER-2455
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2455
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Reporter: pradeep
>
> Hi Folks,
> I am hitting an error in my C client code and below are the set of operations
> I perform:
> 1. Zookeeper Client connected to Zookeeper server S1 and a new server S2
> gets added.
> 2. monitor zookeeper server config at the client and on change of server
> config, call zoo_set_server
> from the client
> 3. client can issue operations like zoo_get just after the call to
> zoo_set_servers
> 4. I can see that the zookeeper thread logs connect to the new server just
> after the zoo_get
> call
> 2016-04-11 03:46:50,655:1207(0xf26ffb40):ZOO_INFO@check_events@2345:
> initiated connection
> to server [128.0.0.5:61728]
> 2016-04-11 03:46:50,658:1207(0xf26ffb40):ZOO_INFO@check_events@2397: session
> establishment
> complete on server [128.0.0.5:61728], sessionId=0x4000001852c000c, negotiated
> timeout=20000
> 5. Some times I find errors like below:
> 2016-04-11
> 03:46:50,662:1207(0xf26ffb40):ZOO_ERROR@handle_socket_error_msg@2923: Socket
> [128.0.0.5:61728]
> zk retcode=-2, errno=115(Operation now in progress): unexpected server
> response: expected
> 0x570b82fa, but received 0x570b82f9
> 1.
> zoo_get returns (-2) indicating that
> ZRUNTIMEINCONSISTENCY<http://zookeeper.sourcearchive.com/documentation/3.2.2plus-pdfsg3/zookeeper_8h_bb1a0a179f313b2e44ee92369c438a4c.html#bb1a0a179f313b2e44ee92369c438a4c9eabb281ab14c74db3aff9ab456fa7fe>
> What is the issue here? should I be retry the operation zoo_get operation? Or
> should I wait
> for the zoo_set_server to complete (like wait for the connection
> establishment notification)
> Thanks,
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