Hi Shylin,

I think the description part in 
https://issues.apache.org/jira/browse/KYLIN-4153 is clear enough, you can find 
the root cause and workaround there, it happened due to the lack of atomicity 
during the rollback for the "big resource". 


As a workaround, you may delete the remaining marker in your resource store, 
but it’s more advised to do an upgrade for your Kylin.



Best regards,

 

Ni Chunen / George



On 02/16/2020 16:22,shylinzhang<[email protected]> wrote:




Dear all,
The cube is ok when 2:00 am,but after 4:30 am it always shows error ,it shows 
```  #4 Step Name: Build Dimension Dictionary
org.apache.kylin.engine.mr.exception.HadoopShellException: 
java.lang.RuntimeException: java.io.IOException: Failed to read big resource 
/dict/KYLIN.HIVE_METRICS_QUERY_CUBE_QA/CUBE_NAME/b9bb85ec-b72e-4df1-9ee7-e8c971ec5c72.dict
at 
org.apache.kylin.dict.DictionaryManager.getDictionaryInfo(DictionaryManager.java:108)
at 
org.apache.kylin.dict.DictionaryManager.checkDupByContent(DictionaryManager.java:173)
at 
org.apache.kylin.dict.DictionaryManager.trySaveNewDict(DictionaryManager.java:151)
at 
org.apache.kylin.dict.DictionaryManager.saveDictionary(DictionaryManager.java:320)
at 
org.apache.kylin.cube.CubeManager$DictionaryAssist.saveDictionary(CubeManager.java:1117)
at org.apache.kylin.cube.CubeManager.saveDictionary(CubeManager.java:1079)
at 
org.apache.kylin.cube.cli.DictionaryGeneratorCLI.processSegment(DictionaryGeneratorCLI.java:74)
at 
org.apache.kylin.cube.cli.DictionaryGeneratorCLI.processSegment(DictionaryGeneratorCLI.java:55)
at 
org.apache.kylin.engine.mr.steps.CreateDictionaryJob.run(CreateDictionaryJob.java:73)
at org.apache.kylin.engine.mr.MRUtil.runMRJob(MRUtil.java:93)
at 
org.apache.kylin.engine.mr.common.HadoopShellExecutable.doWork(HadoopShellExecutable.java:63)
at 
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:166)
at 
org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
at 
org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:166)
at 
org.apache.kylin.job.impl.threadpool.DistributedScheduler$JobRunner.run(DistributedScheduler.java:110)
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
What I do:
1. I disable the cube and purge the cube and rebulid, it also show the same 
error;
2. Because the cube at 2:00 am is ok, so I use the meta_backs in 2:00 am and 
restore and cube; I try short period to build the cube,  2:00 
am~3:00am~4:00am~4:00am~6:00am are ok, but in 6:am~7:00 am  it also shows above 
error;


I found the solution in kylin jira, it tells me to update to release 2.6.4; our 
kylin clusters are used in 2019-06; just today shows the error.
Here’s the jira url: 
https://issues.apache.org/jira/browse/KYLIN-4153?jql=summary%20~%20%22Failed%20to%20read%20big%20resource*%22%20OR%20description%20~%20%22Failed%20to%20read%20big%20resource*%22%20ORDER%20BY%20lastViewed%20DESC


Therefore I want to know why it occured and if there is a way to fix it except 
updating.
I am looking forward for your replay, thank you.




Kylin version: 2.6.1
Hadoop version: 3.0.0+cdh6.0.0




Best Wishes!
Shylin Zhang


| |
shylinzhang
|
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[email protected]
|
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