Nick Travers created ZOOKEEPER-2869:
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Summary: Allow for exponential backoff in ClientCnxn.SendThread on
connection re-establishment
Key: ZOOKEEPER-2869
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2869
Project: ZooKeeper
Issue Type: Improvement
Components: java client
Affects Versions: 3.5.3, 3.4.10
Reporter: Nick Travers
Priority: Minor
As part of ZOOKEEPER-961, when the client re-establishes a connection to the
server, it will sleep for a random number of milliseconds in the range [0,
1000). Introduced
[here|https://github.com/apache/zookeeper/commit/d84dc077d576b7cdfbfd003e3425fab85ca29a44].
These reconnects can cause excessive logging in clients if the server is
unavailable for an extended period of time, with reconnects every 500ms on
average.
One solution could be to allow for exponential backoff in the client. The
backoff params could be made configurable.
[3.5.x
code|https://github.com/apache/zookeeper/blob/release-3.5.3/src/java/main/org/apache/zookeeper/ClientCnxn.java#L1059].
[3.4.x
code|https://github.com/apache/zookeeper/blob/release-3.4.9/src/java/main/org/apache/zookeeper/ClientCnxn.java#L1051].
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