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Posted to dev@zookeeper.apache.org by "Michael Han (JIRA)" <ji...@apache.org> on 2017/03/13 16:22:09 UTC
[jira] [Updated] (ZOOKEEPER-1998) C library calls getaddrinfo
unconditionally from zookeeper_interest
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Han updated ZOOKEEPER-1998:
-----------------------------------
Fix Version/s: (was: 3.5.3)
3.5.4
> C library calls getaddrinfo unconditionally from zookeeper_interest
> -------------------------------------------------------------------
>
> Key: ZOOKEEPER-1998
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1998
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.5.0
> Reporter: Raul Gutierrez Segales
> Assignee: Raul Gutierrez Segales
> Priority: Critical
> Fix For: 3.5.4, 3.6.0
>
>
> (commented this on ZOOKEEPER-338)
> I've just noticed that we call getaddrinfo from zookeeper_interest... on every call. So from zookeeper_interest we always call update_addrs:
> https://github.com/apache/zookeeper/blob/trunk/src/c/src/zookeeper.c#L2082
> which in turns unconditionally calls resolve_hosts:
> https://github.com/apache/zookeeper/blob/trunk/src/c/src/zookeeper.c#L787
> which does the unconditional calls to getaddrinfo:
> https://github.com/apache/zookeeper/blob/trunk/src/c/src/zookeeper.c#L648
> We should fix this since it'll make 3.5.0 slower for people relying on DNS. I think this is happened as part of ZOOKEEPER-107 in which the list of servers can be updated.
> cc: [~shralex], [~phunt], [~fpj]
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