You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-issues@hadoop.apache.org by "Mehakmeet Singh (Jira)" <ji...@apache.org> on 2020/08/10 11:19:00 UTC
[jira] [Commented] (HADOOP-17195) Intermittent OutOfMemory error
while performing hdfs CopyFromLocal to abfs
[ https://issues.apache.org/jira/browse/HADOOP-17195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17174252#comment-17174252 ]
Mehakmeet Singh commented on HADOOP-17195:
------------------------------------------
CC: [~stevel], [~mukund-thakur].
> Intermittent OutOfMemory error while performing hdfs CopyFromLocal to abfs
> ---------------------------------------------------------------------------
>
> Key: HADOOP-17195
> URL: https://issues.apache.org/jira/browse/HADOOP-17195
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/azure
> Affects Versions: 3.3.0
> Reporter: Mehakmeet Singh
> Assignee: Mehakmeet Singh
> Priority: Major
>
> OutOfMemory error due to new ThreadPools being made each time AbfsOutputStream is created. Since threadPool aren't limited a lot of data is loaded in buffer and thus it causes OutOfMemory error.
> Possible fixes:
> - Limit the number of ThreadCounts while performing hdfs copyFromLocal (Using -t property).
> - Reducing OUTPUT_BUFFER_SIZE significantly which would limit the amount of buffer to be loaded in threads.
> - Don't create new ThreadPools each time AbfsOutputStream is created and limit the number of ThreadPools each AbfsOutputStream could create.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org