Raul Gutierrez Segales created ZOOKEEPER-1998:
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Summary: 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: 3.5.0
(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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