ConfX created HDFS-17196:
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Summary: Overflow during getDatanodeReadTimeout
Key: HDFS-17196
URL: https://issues.apache.org/jira/browse/HDFS-17196
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.3.6
Reporter: ConfX
Datanode read timeout equals to READ_TIMEOUT_EXTENSION * numNodes +
`dfs.client.socket-timeout`. A large
dfs.client.socket-timeout/numNodes/READ_TIMEOUT_EXTENSION will cause overflow.
To reproduce:
1. set `dfs.client.socket-timeout` to 2147483646
2. run `mvn surefire:test
-Dtest=org.apache.hadoop.hdfs.server.namenode.ha.TestHASafeMode#testBlocksRemovedWhileInSafeModeEditsArriveFirst`
We create a PR that provides a fix by checking the read timeout calculation is
at least 0.
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