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https://issues.apache.org/jira/browse/HDFS-16847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17636785#comment-17636785
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ASF GitHub Bot commented on HDFS-16847:
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simbadzina commented on PR #5145:
URL: https://github.com/apache/hadoop/pull/5145#issuecomment-1322414231
I've added a unit test. Without my patch. We write a zero byte file and end
up with the following error when trying to read the state store.
> Caused by: java.io.IOException: Cannot read
/hdfs-federation/MembershipState/randomString--459989902-randomString--826693283-randomString--606850105
for record MembershipState
at
org.apache.hadoop.hdfs.server.federation.store.driver.impl.StateStoreFileBaseImpl.getRecord(StateStoreFileBaseImpl.java:290)
at
org.apache.hadoop.hdfs.server.federation.store.driver.impl.StateStoreFileBaseImpl.get(StateStoreFileBaseImpl.java:222)
> RBF: StateStore writer should not commit tmp fail if there was an error in
> writing the file.
> --------------------------------------------------------------------------------------------
>
> Key: HDFS-16847
> URL: https://issues.apache.org/jira/browse/HDFS-16847
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs, rbf
> Reporter: Simbarashe Dzinamarira
> Assignee: Simbarashe Dzinamarira
> Priority: Critical
> Labels: pull-request-available
>
> The file based implementation of the RBF state store has a commit step that
> moves a temporary file to a permanent location.
> There is a check to see if the write of the temp file was successfully,
> however, the code to commit doesn't check the success flag.
> This is the relevant code:
> [https://github.com/apache/hadoop/blob/7d39abd799a5f801a9fd07868a193205ab500bfa/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/driver/impl/StateStoreFileBaseImpl.java#L369]
>
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