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urbanlad20
Silver ⭐️
June 15, 2019
Solved

Failed to start namenode. java.io.FileNotFoundException: File does not exist

Facing this issue with the namenode down. It is a parcel based CDH 5.15.2 installation on AWS.

 

9:15:18.262 PM ERROR NameNode

Failed to start namenode.
java.io.FileNotFoundException: File does not exist: /user/spark/spark2ApplicationHistory/.5e9b4c52-032a-4469-b278-80aa6254cfdf
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:66)
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:56)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.applyEditLogOp(FSEditLogLoader.java:429)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:232)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:141)
at org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:903)
at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:756)
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:324)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1152)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:799)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:614)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:676)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:844)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:823)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1547)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1615)

9:15:18.264 PM INFO ExitUtil

Exiting with status 1

9:15:18.265 PM INFO NameNode

SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at xxxx.xxxx.xxxx/**.**.**.**
************************************************************/

 

 

 

Stuck from two days. Any help will be highly appreciated.

 

Cheers,

Harsh J
Harsh JAnswer
Gold ⭐️⭐️
June 24, 2019
This looks like a case of edit logs getting reordered. As @bgooley noted, it is similar to HDFS-12369, where the OP_CLOSE is appearing after OP_DELETE causing the file to be absent when replaying the edits.

The simplest fix, depending on if this is the only file instance of the reordered issue in your edit logs, would be to run the NameNode manually in an edits-recovery mode and "skip" this edit when it catches the error. The rest of the edits should apply normally and let you start up your NameNode.

The recovery mode of NameNode is detailed at https://blog.cloudera.com/blog/2012/05/namenode-recovery-tools-for-the-hadoop-distributed-file-system/

If you're using CM, you'll need to use the NameNode's most recent generated configuration directory under /var/run/cloudera-scm-agent/process/ on the NameNode host as the HADOOP_CONF_DIR, while logged in as 'hdfs' user, before invoking the manual NameNode startup command.

Once you've followed the prompts and the NameNode appears to start up, quit out/kill it to restart from Cloudera Manager normally.

If you have a Support subscription, I'd recommend filing a case for this, as the process could get more involved depending on how widespread this issue is.

4 replies

manuroman
Gold ⭐️
June 18, 2019

Hi @urbanlad20,

 

Your error is: 

File does not exist: /user/spark/spark2ApplicationHistory/.5e9b4c52-032a-4469-b278-80aa6254cfdf

 

 

 Can you restart the spark installation ? it seems to be related.

 

Regards,

Manu.

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urbanlad20
Silver ⭐️
June 21, 2019
I've already tried deleting spark, then restarted the namenode, but it didn't help. Namenode is still looking for that file. Again I installed spark and restarted the namenode, still no luck
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bgooley
Gold ⭐️
Gold ⭐️
June 21, 2019

@urbanlad20 ,

 

That stack reminds me of HDFS-12369 but I also thought it should be fixed in CDH 5.12.2.

I think it would be good to have HDFS folks look at this; I'll move thread to HDFS.

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