Andras Istvan Nagy created KYLIN-4298:
-----------------------------------------
Summary: Issue with shrunken dictionary on S3
Key: KYLIN-4298
URL: https://issues.apache.org/jira/browse/KYLIN-4298
Project: Kylin
Issue Type: Bug
Affects Versions: v3.0.0-alpha2
Reporter: Andras Istvan Nagy
We have run into an issue when using Kylin on S3. After moving
{{kylin.env.hdfs-working-dir}} to S3, we got this exception:
{code:java}
Error: java.lang.IllegalArgumentException: Wrong FS:
s3://kylin-XXXXX/kylin-test/hdfs-rootdir/kylin_metadata/kylin-330f6073-7123-75f6-ea28-09daab247d0a/vds_crosswalks/dictionary_shrunken/OBJECT_MOVEMENT_EVENTS_OLAP_VIEW.OBJECT_ID,
expected: hdfs://ip-24-0-2-235.us-west-2.compute.internal:8020
Error: java.lang.IllegalArgumentException: Wrong FS:
s3://kylin-XXXXX/kylin-test/hdfs-rootdir/kylin_metadata/kylin-330f6073-7123-75f6-ea28-09daab247d0a/vds_crosswalks/dictionary_shrunken/OBJECT_MOVEMENT_EVENTS_OLAP_VIEW.OBJECT_ID,
expected: hdfs://ip-24-0-2-235.us-west-2.compute.internal:8020 at
org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:669) at
org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:214)
at
org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1440)
at
org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1437)
at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at
org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1452)
at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1440) at
org.apache.kylin.engine.mr.steps.ExtractDictionaryFromGlobalMapper.doCleanup(ExtractDictionaryFromGlobalMapper.java:142)
at org.apache.kylin.engine.mr.KylinMapper.cleanup(KylinMapper.java:103) at
org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:149) at
org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:796) at
org.apache.hadoop.mapred.MapTask.run(MapTask.java:342) at
org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:175) at
java.security.AccessController.doPrivileged(Native Method) at
javax.security.auth.Subject.doAs(Subject.java:422) at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1844)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:169){code}
(I masked the bucket name in the above exception)
The problem ceased after disabling the shrunken dictionary feature (setting
{{kylin.dictionary.shrunken-from-global-enabled=false}})
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
