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Posted to common-issues@hadoop.apache.org by "Tsz Wo Nicholas Sze (JIRA)" <ji...@apache.org> on 2019/02/19 22:35:00 UTC
[jira] [Created] (HADOOP-16126) ipc.Client.stop() may sleep too
long to wait for all connections
Tsz Wo Nicholas Sze created HADOOP-16126:
--------------------------------------------
Summary: ipc.Client.stop() may sleep too long to wait for all connections
Key: HADOOP-16126
URL: https://issues.apache.org/jira/browse/HADOOP-16126
Project: Hadoop Common
Issue Type: Improvement
Components: ipc
Reporter: Tsz Wo Nicholas Sze
Assignee: Tsz Wo Nicholas Sze
{code}
//Client.java
public void stop() {
...
// wait until all connections are closed
while (!connections.isEmpty()) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
}
...
}
{code}
In the code above, the sleep time is 100ms. We found that simply changing the sleep time to 10ms could improve a Hive job running time by 10x.
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