[KYLIN-2648] kylin.env.hdfs-working-dir should be qualified and absolute path

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v2.0.0
• Fix Version/s: v2.1.0
• Component/s: Job Engine
• Environment: hadoop :cdh5.4.0 (both main and hbase env) ; hbase : hbase-1.2.0-cdh5.7.6 ; hive: apache-hive-2.1.1 ; ; kylin version: 2.0
• Assignee: liyang
• Reporter: suheng.cloud
• Created: 26/May/17 05:56
• Updated: 13/Oct/17 00:05
• Resolved: 12/Jul/17 14:02

Description

I try to deploy kylin on one node of a stand alone hbase cluster(hdfs://cdh5-mini/) which seperate from main hive cluster(hdfs://cdh5/),
According to the blog "Deploy Apache Kylin with Standalone HBase Cluster" : make sure the configurations of hadoop and hive points to main cluster,
I clone hadoop dir to another path and modify "fs.defaultFS" in core-site.xml to "hdfs://cdh5/" , and in head of kylin.sh, I export HADOOP_HOME to this new path.
So all goes well (include cube build/refresh) until I execute cube merge.
The merge error occurs at step "#9 Step Name: Garbage Collection on HDFS".

The stacktrace as follows:
2017-05-25 17:28:07,070 INFO [pool-9-thread-1] threadpool.DefaultScheduler:114 : CubingJob

{id=c6709f0b-8858-4e66-a4c2-320ebc70a2e3, name=kylin_sales_cube - 20120101000000_20140201000000 - MERGE - GMT+08:00 2017-05-25 16:51:30, state=READY}

prepare to schedule
2017-05-25 17:28:07,073 INFO [pool-9-thread-1] threadpool.DefaultScheduler:117 : CubingJob

{id=c6709f0b-8858-4e66-a4c2-320ebc70a2e3, name=kylin_sales_cube - 20120101000000_20140201000000 - MERGE - GMT+08:00 2017-05-25 16:51:30, state=READY}

scheduled
2017-05-25 17:28:07,075 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.AbstractExecutable:110 : Executing AbstractExecutable (kylin_sales_cube - 20120101000000_20140201000000 - MERGE - GMT+08:00 2017-05-25 16:51:30)
2017-05-25 17:28:07,078 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3
2017-05-25 17:28:07,083 INFO [pool-9-thread-1] threadpool.DefaultScheduler:124 : Job Fetcher: 0 should running, 1 actual running, 0 stopped, 1 ready, 19 already succeed, 0 error, 11 discarded, 0 others
2017-05-25 17:28:07,083 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.ExecutableManager:389 : job id:c6709f0b-8858-4e66-a4c2-320ebc70a2e3 from READY to RUNNING
2017-05-25 17:28:07,105 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.AbstractExecutable:110 : Executing AbstractExecutable (Garbage Collection on HDFS)
2017-05-25 17:28:07,106 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08
2017-05-25 17:28:07,111 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.ExecutableManager:389 : job id:c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08 from READY to RUNNING
2017-05-25 17:28:07,154 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] steps.HDFSPathGarbageCollectionStep:78 : Drop HDFS path on FileSystem: hdfs://cdh5
2017-05-25 17:28:07,217 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] steps.HDFSPathGarbageCollectionStep:90 : HDFS path hdfs:///kylin/kylin_metadata/kylin-a11d510f-d8a5-45c1-b430-bc7def851432 not exists.
2017-05-25 17:28:07,249 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] steps.HDFSPathGarbageCollectionStep:90 : HDFS path hdfs:///kylin/kylin_metadata/kylin-0c1ed2d0-f595-4f58-aaea-2dbe7b41a550 not exists.
2017-05-25 17:28:07,320 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] steps.HDFSPathGarbageCollectionStep:78 : Drop HDFS path on FileSystem: hdfs://cdh5-mini
2017-05-25 17:28:07,324 ERROR [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.AbstractExecutable:126 : error running Executable: HDFSPathGarbageCollectionStep

{id=c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08, name=Garbage Collection on HDFS, state=RUNNING}

2017-05-25 17:28:07,326 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08
2017-05-25 17:28:07,331 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08
2017-05-25 17:28:07,334 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.ExecutableManager:389 : job id:c6709f0b-8858-4e66-a4c2-320ebc70a2e3-08 from RUNNING to ERROR
2017-05-25 17:28:07,335 ERROR [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.AbstractExecutable:126 : error running Executable: CubingJob

{id=c6709f0b-8858-4e66-a4c2-320ebc70a2e3, name=kylin_sales_cube - 20120101000000_20140201000000 - MERGE - GMT+08:00 2017-05-25 16:51:30, state=RUNNING}

2017-05-25 17:28:07,337 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3
2017-05-25 17:28:07,342 DEBUG [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] dao.ExecutableDao:217 : updating job output, id: c6709f0b-8858-4e66-a4c2-320ebc70a2e3
2017-05-25 17:28:07,344 INFO [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.ExecutableManager:389 : job id:c6709f0b-8858-4e66-a4c2-320ebc70a2e3 from RUNNING to ERROR
2017-05-25 17:28:07,345 WARN [Job c6709f0b-8858-4e66-a4c2-320ebc70a2e3-128] execution.AbstractExecutable:258 : no need to send email, user list is empty
2017-05-25 17:28:07,346 ERROR [pool-10-thread-1] threadpool.DefaultScheduler:146 : ExecuteException job:c6709f0b-8858-4e66-a4c2-320ebc70a2e3
org.apache.kylin.job.exception.ExecuteException: org.apache.kylin.job.exception.ExecuteException: java.lang.IllegalArgumentException: Wrong FS: hdfs:/kylin/kylin_metadata/kylin-a11d510f-d8a5-45c1-b430-bc7def851432, expected: hdfs://cdh5-mini
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:134)
at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:142)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.kylin.job.exception.ExecuteException: java.lang.IllegalArgumentException: Wrong FS: hdfs:/kylin/kylin_metadata/kylin-a11d510f-d8a5-45c1-b430-bc7def851432, expected: hdfs://cdh5-mini
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:134)
at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:64)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:124)
... 4 more
Caused by: java.lang.IllegalArgumentException: Wrong FS: hdfs:/kylin/kylin_metadata/kylin-a11d510f-d8a5-45c1-b430-bc7def851432, expected: hdfs://cdh5-mini
at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:658)
at org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:194)
at org.apache.hadoop.hdfs.DistributedFileSystem.access$000(DistributedFileSystem.java:106)
at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1215)
at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1211)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1211)
at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1413)
at org.apache.kylin.storage.hbase.steps.HDFSPathGarbageCollectionStep.dropHdfsPathOnCluster(HDFSPathGarbageCollectionStep.java:85)
at org.apache.kylin.storage.hbase.steps.HDFSPathGarbageCollectionStep.doWork(HDFSPathGarbageCollectionStep.java:65)
at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:124)
... 6 more

Issue Links

• is duplicated by: KYLIN-2708 cube merge operations can not execute success