[ https://issues.apache.org/jira/browse/HDFS-16386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDFS-16386: ---------------------------------- Labels: pull-request-available (was: ) > Reduce DataNode load when FsDatasetAsyncDiskService is working > -------------------------------------------------------------- > > Key: HDFS-16386 > URL: https://issues.apache.org/jira/browse/HDFS-16386 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Affects Versions: 2.9.2 > Reporter: JiangHua Zhu > Assignee: JiangHua Zhu > Priority: Major > Labels: pull-request-available > Attachments: monitor.png > > Time Spent: 10m > Remaining Estimate: 0h > > Our DataNode node has 36 disks. When FsDatasetAsyncDiskService is working, it > will cause a high load on the DataNode. > Here are some monitoring related to memory: > !monitor.png! > Since each disk deletes the block asynchronously, and each thread allows 4 > threads to work, > This will cause some troubles to the DataNode, such as increased cpu and > increased memory. > We should appropriately reduce the number of jobs of the total thread so that > the DataNode can work better. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org