Gopal V created HIVE-20854:
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Summary: Sensible Defaults: Hive's Zookeeper heartbeat interval is
20 minutes, change to 2
Key: HIVE-20854
URL: https://issues.apache.org/jira/browse/HIVE-20854
Project: Hive
Issue Type: Bug
Reporter: Gopal V
{code}
HIVE_ZOOKEEPER_SESSION_TIMEOUT("hive.zookeeper.session.timeout",
"1200000ms",
new TimeValidator(TimeUnit.MILLISECONDS),
"ZooKeeper client's session timeout (in milliseconds). The client is
disconnected, and as a result, all locks released, \n" +
"if a heartbeat is not sent in the timeout."),
{code}
That's 1,200,000ms which is too long for all practical purposes - a 20 minute
outage in case a node has a failure is too long.
That is too long for the JDBC load-balancing, LLAP failure tolerance and the
lock manager expiry.
Change to 2 minutes, as a sensible default
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