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https://issues.apache.org/jira/browse/HDDS-10043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17829705#comment-17829705
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Wei-Chiu Chuang commented on HDDS-10043:
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HDDS-10465 will probably solve this too.
> java.lang.OutOfMemoryError on FSDataOutputStream write ops
> ----------------------------------------------------------
>
> Key: HDDS-10043
> URL: https://issues.apache.org/jira/browse/HDDS-10043
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Client
> Reporter: Pratyush Bhatt
> Assignee: Siyao Meng
> Priority: Major
>
> Seems like FSDataOutputStream utilise higher heap memory.
> Doing write Ops in ~300 FSDataOutputStream objects sequentially is causing
> {color:#FF0000}_java.lang.OutOfMemoryError: Java heap space_
> {color}{color:#FF0000}error. {color}
> While the FSDataOutputStream on HDFS doesn't throws heap issues, tried with
> ~3000 objects on same Environment, works fine.
> Note: Both the tests were performed in same environment.
> Client is a Kube container, specs:
> {code:java}
> limits:
> cpu: "1"
> ephemeral-storage: 5G
> memory: 300M
> requests:
> cpu: 200m
> ephemeral-storage: 1G
> memory: 200M {code}
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