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socket missing on DN

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Hi,

 after a restart of two DN from the HDFS the Impala daemon refused to start becuase it was not able to access /var/run/hdfs-sockets/dn. I verified the directory, and the socket is not there. I checked other DN hosts and there the socket directory is created. 

 

I had to start the Impala, so I turned off short circuit reads, but my question is how to re-create these socket directories? Just with a restart of the HDFS? 

Does anybody had a similar experience?

Thanks

 

CDH5.15

1 ACCEPTED SOLUTION

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The DN process was not running, so the restart of the whole HDFS resolved the issue and the directory (socket) was created on every data node

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2 REPLIES 2

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The DN process was not running, so the restart of the whole HDFS resolved the issue and the directory (socket) was created on every data node

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Super Guru
Hi Tomas,

Thanks for providing the solution. Can you please accept your findings as the solution so that it would be obvious to other community users?

Cheers