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Re: [EXTERNAL] Re: Server side error: Cannot find required BLOB at /tmp/blobStore


Thanks a lot Lasse.



So, the recommendation is to update the property “”, to some maintained path, other than “/tmp”, so the default cleanup will be eliminated ?


Also can you pls confirm if this is a hdfs path or a Local unix path ?

Please acknowledge if I have understood is correctly?


Thanks a lot again.






From: Lasse Nedergaard <lassenedergaard@xxxxxxxxx>
Date: Tuesday, September 11, 2018 at 12:52 PM
To: miki haiat <miko5054@xxxxxxxxx>
Cc: Raja Aravapalli <Raja.Aravapalli@xxxxxxxxxx>, user <user@xxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Re: Server side error: Cannot find required BLOB at /tmp/blobStore




From my presentation on Flink forward you can validate this

We used EMR on Amazon’s Linux AMI

We didn't change the default blob server location (/tmp)

Default a cron job cleaning up in /tmp

Solution change blob server location with


Den tir. 11. sep. 2018 kl. 09.14 skrev miki haiat <miko5054@xxxxxxxxx>:


Is it the path  for checkpoints/savepoints  storage ?


On Tue, 11 Sep 2018, 10:01 Raja.Aravapalli, <Raja.Aravapalli@xxxxxxxxxx> wrote:



My Flink application which reads from Kafka and writes to HDFS is failing repeatedly with below exception:


Caused by: Server side error: Cannot find required BLOB at /tmp/blobStore-**********


Can someone please help me on, what could be the root cause of this issue?  I am not able to trace logs also.


Also, FYI, our FLINK cluster(4nodes) is setup on our Hadoop YARN cluster.


Thanks a lot.