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https://issues.apache.org/jira/browse/HDFS-16186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HDFS-16186 started by yanbin.zhang.
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> Datanode kicks out hard disk logic optimization
> -----------------------------------------------
>
> Key: HDFS-16186
> URL: https://issues.apache.org/jira/browse/HDFS-16186
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 3.1.2
> Environment: In the hadoop cluster, a certain hard disk in a certain
> Datanode has a problem, but the datanode of hdfs did not kick out the hard
> disk in time, causing the datanode to become a slow node
> Reporter: yanbin.zhang
> Assignee: yanbin.zhang
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h
> Remaining Estimate: 0h
>
> 2021-08-24 08:56:10,456 WARN datanode.DataNode
> (BlockSender.java:readChecksum(681)) - Could not read or failed to verify
> checksum for data at offset 113115136 for block
> BP-1801371083-x.x.x.x-1603704063698:blk_5635828768_4563943709
> java.io.IOException: Input/output error
> at java.io.FileInputStream.readBytes(Native Method)
> at java.io.FileInputStream.read(FileInputStream.java:255)
> at
> org.apache.hadoop.hdfs.server.datanode.FileIoProvider$WrappedFileInputStream.read(FileIoProvider.java:876)
> at java.io.FilterInputStream.read(FilterInputStream.java:133)
> at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
> at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
> at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
> at java.io.DataInputStream.read(DataInputStream.java:149)
> at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:210)
> at
> org.apache.hadoop.hdfs.server.datanode.fsdataset.ReplicaInputStreams.readChecksumFully(ReplicaInputStreams.java:90)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.readChecksum(BlockSender.java:679)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendPacket(BlockSender.java:588)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.doSendBlock(BlockSender.java:803)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendBlock(BlockSender.java:750)
> at
> org.apache.hadoop.hdfs.server.datanode.VolumeScanner.scanBlock(VolumeScanner.java:448)
> at
> org.apache.hadoop.hdfs.server.datanode.VolumeScanner.runLoop(VolumeScanner.java:558)
> at
> org.apache.hadoop.hdfs.server.datanode.VolumeScanner.run(VolumeScanner.java:633)
> 2021-08-24 08:56:11,121 WARN datanode.VolumeScanner
> (VolumeScanner.java:handle(292)) - Reporting bad
> BP-1801371083-x.x.x.x-1603704063698:blk_5635828768_4563943709 on
> /data11/hdfs/data
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