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https://issues.apache.org/jira/browse/IOTDB-2057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alima777 reassigned IOTDB-2057:
-------------------------------
Assignee: Alima777
> OutOfMemoryError: Direct buffer memory
> ---------------------------------------
>
> Key: IOTDB-2057
> URL: https://issues.apache.org/jira/browse/IOTDB-2057
> Project: Apache IoTDB
> Issue Type: Bug
> Affects Versions: 0.12.3
> Reporter: Jialin Qiao
> Assignee: Alima777
> Priority: Major
> Attachments: image-2021-11-25-14-31-56-959.png,
> image-2021-11-25-14-33-39-006.png, image-2021-11-25-14-35-13-448.png
>
>
> In an IoTDB instance, we set:
> MAX_HEAP_SIZE="50G"
> HEAP_NEWSIZE="50G"
> MAX_DIRECT_MEMORY_SIZE="50G"
> There are read/write and compaction in this IoTDB.
> However, the direct memory exceeds 50G and OutOfMemory.
> !image-2021-11-25-14-31-56-959.png!
> !image-2021-11-25-14-33-39-006.png!
> The heap memory looks good.
> !image-2021-11-25-14-35-13-448.png!
> We need to control the direct memory. E.g., when using FileChannel to read
> TsFile.
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