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Posted to common-issues@hadoop.apache.org by "Wei-Chiu Chuang (Jira)" <ji...@apache.org> on 2019/10/02 23:57:00 UTC
[jira] [Updated] (HADOOP-16126) ipc.Client.stop() may sleep too
long to wait for all connections
[ https://issues.apache.org/jira/browse/HADOOP-16126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang updated HADOOP-16126:
-------------------------------------
Fix Version/s: 3.2.2
3.1.4
> 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 Sze
> Assignee: Tsz-wo Sze
> Priority: Major
> Fix For: 2.10.0, 3.3.0, 2.8.6, 2.9.3, 3.1.4, 3.2.2
>
> Attachments: c16126_20190219.patch, c16126_20190220.patch, c16126_20190221.patch
>
>
> {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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