Splunk Dev

Hadoop Data Roll cannot create a directory - because it sees it as a file?

derick_kotze
New Member

I am trying to configure Hadoop Data Roll to archive data to a S3-compatible data store.

I can confirm that I can access the data store via s3cmd (https://s3tools.org/usage) as well as Hadoop on the local machine.

Below is the error that I'm seeing after the | archivebuckets saved search ran.

2019-11-19 18:17:09.064 +0200 ERROR SearchOutputStream - java.lang.RuntimeException: {exception=org.apache.hadoop.fs.FileAlreadyExistsException, message=Can't make directory for path 's3a://sam-splunk-archive/_internal_archive/tmp' since it is a file., stack=[org.apache.hadoop.fs.s3a.S3AFileSystem.innerMkdirs(S3AFileSystem.java:1731), org.apache.hadoop.fs.s3a.S3AFileSystem.mkdirs(S3AFileSystem.java:1681), org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:2216), com.splunk.roll.Transactor.prepare(Transactor.java:84), com.splunk.roll.Roller.doCopyBucket(Roller.java:158), com.splunk.roll.Roller.copy(Roller.java:87), com.splunk.roll.RollHandler.doCopyFromSplunkIndex(RollHandler.java:182), com.splunk.roll.RollHandler.executeCopyFromSplunkIndex(RollHandler.java:145), com.splunk.roll.RollHandler.executeCopyToVix(RollHandler.java:130), com.splunk.roll.RollHandler.execute(RollHandler.java:68), com.splunk.mr.SplunkMR.runImpl(SplunkMR.java:1802), com.splunk.mr.SplunkMR.run(SplunkMR.java:1551), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90), com.splunk.mr.SplunkMR.main(SplunkMR.java:1839)]}
java.lang.Exception: java.lang.RuntimeException: {exception=org.apache.hadoop.fs.FileAlreadyExistsException, message=Can't make directory for path 's3a://sam-splunk-archive/_internal_archive/tmp' since it is a file., stack=[org.apache.hadoop.fs.s3a.S3AFileSystem.innerMkdirs(S3AFileSystem.java:1731), org.apache.hadoop.fs.s3a.S3AFileSystem.mkdirs(S3AFileSystem.java:1681), org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:2216), com.splunk.roll.Transactor.prepare(Transactor.java:84), com.splunk.roll.Roller.doCopyBucket(Roller.java:158), com.splunk.roll.Roller.copy(Roller.java:87), com.splunk.roll.RollHandler.doCopyFromSplunkIndex(RollHandler.java:182), com.splunk.roll.RollHandler.executeCopyFromSplunkIndex(RollHandler.java:145), com.splunk.roll.RollHandler.executeCopyToVix(RollHandler.java:130), com.splunk.roll.RollHandler.execute(RollHandler.java:68), com.splunk.mr.SplunkMR.runImpl(SplunkMR.java:1802), com.splunk.mr.SplunkMR.run(SplunkMR.java:1551), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90), com.splunk.mr.SplunkMR.main(SplunkMR.java:1839)]}
            at com.splunk.mr.SplunkMR.run(SplunkMR.java:1567)
            at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
            at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
            at com.splunk.mr.SplunkMR.main(SplunkMR.java:1839)
Caused by: java.lang.RuntimeException: {exception=org.apache.hadoop.fs.FileAlreadyExistsException, message=Can't make directory for path 's3a://sam-splunk-archive/_internal_archive/tmp' since it is a file., stack=[org.apache.hadoop.fs.s3a.S3AFileSystem.innerMkdirs(S3AFileSystem.java:1731), org.apache.hadoop.fs.s3a.S3AFileSystem.mkdirs(S3AFileSystem.java:1681), org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:2216), com.splunk.roll.Transactor.prepare(Transactor.java:84), com.splunk.roll.Roller.doCopyBucket(Roller.java:158), com.splunk.roll.Roller.copy(Roller.java:87), com.splunk.roll.RollHandler.doCopyFromSplunkIndex(RollHandler.java:182), com.splunk.roll.RollHandler.executeCopyFromSplunkIndex(RollHandler.java:145), com.splunk.roll.RollHandler.executeCopyToVix(RollHandler.java:130), com.splunk.roll.RollHandler.execute(RollHandler.java:68), com.splunk.mr.SplunkMR.runImpl(SplunkMR.java:1802), com.splunk.mr.SplunkMR.run(SplunkMR.java:1551), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76), org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90), com.splunk.mr.SplunkMR.main(SplunkMR.java:1839)]}
            at com.splunk.roll.RollHandler.execute(RollHandler.java:82)
            at com.splunk.mr.SplunkMR.runImpl(SplunkMR.java:1802)
            at com.splunk.mr.SplunkMR.run(SplunkMR.java:1551)
            ... 3 more

The following message also appears - which ties back to the error in the message above.

alt text

I can see that directories have been created in the bucket - but no actual data has been transferred.

Any ideas on how to resolve the issue? I'm pretty sure that I'm missing something obvious ... so any help will be appreciated.

Tags (1)
0 Karma
Get Updates on the Splunk Community!

Modern way of developing distributed application using OTel

Recently, I had the opportunity to work on a complex microservice using Spring boot and Quarkus to develop a ...

Enterprise Security Content Update (ESCU) | New Releases

Last month, the Splunk Threat Research Team had 3 releases of new security content via the Enterprise Security ...

Archived Metrics Now Available for APAC and EMEA realms

We’re excited to announce the launch of Archived Metrics in Splunk Infrastructure Monitoring for our customers ...