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https://issues.apache.org/jira/browse/HADOOP-17130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Steve Loughran resolved HADOOP-17130.
-------------------------------------
Fix Version/s: 3.1.5
3.3.1
3.2.2
Resolution: Fixed
patch backported to all the active 3.x branches
> Configuration.getValByRegex() shouldn't update the results while fetching.
> --------------------------------------------------------------------------
>
> Key: HADOOP-17130
> URL: https://issues.apache.org/jira/browse/HADOOP-17130
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 3.1.3
> Reporter: Mukund Thakur
> Assignee: Mukund Thakur
> Priority: Major
> Fix For: 3.2.2, 3.3.1, 3.1.5
>
>
> We have seen this stacktrace while using ABFS file system. After analysing
> the stack trace we can see that getValByRegex() is reading the properties and
> substituting the value in the same call. This may cause the
> ConcurrentModificationException.
> {code:java}
> Caused by: java.util.concurrent.ExecutionException:
> java.util.ConcurrentModificationException at
> java.util.concurrent.FutureTask.report(FutureTask.java:122) at
> java.util.concurrent.FutureTask.get(FutureTask.java:192) at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.generateSplitsInfo(OrcInputFormat.java:1877)
> ... 18 more Caused by: java.util.ConcurrentModificationException at
> java.util.Hashtable$Enumerator.next(Hashtable.java:1387) at
> org.apache.hadoop.conf.Configuration.getValByRegex(Configuration.java:3855)
> at
> org.apache.hadoop.fs.azurebfs.AbfsConfiguration.validateStorageAccountKeys(AbfsConfiguration.java:689)
> at
> org.apache.hadoop.fs.azurebfs.AbfsConfiguration.<init>(AbfsConfiguration.java:237)
> at
> org.apache.hadoop.fs.azurebfs.AzureBlobFileSystemStore.<init>(AzureBlobFileSystemStore.java:154)
> at
> org.apache.hadoop.fs.azurebfs.AzureBlobFileSystem.initialize(AzureBlobFileSystem.java:113)
> at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3396) at
> org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:158) at
> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3456) at
> org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3424) at
> org.apache.hadoop.fs.FileSystem.get(FileSystem.java:518) at
> org.apache.hadoop.fs.Path.getFileSystem(Path.java:361)
>
> {code}
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