question Re: How to permanently remove disk from hdfs? in Archives of Support Questions (Read Only)

How to permanently remove disk from hdfs?

a_gulshani — Wed, 16 May 2018 16:14:09 GMT

Hi!

Can you please help to permanently remove a disk from all the datanodes in working cluster.

DataNode directories

/grid/0,/grid/2,/grid/3,/grid/4,/grid/5,/grid/6,/grid/7,/grid/8,/grid/9,/grid/10,/grid/11,/grid/12,/grid/14,/grid/15

I would like to remove /grid/15.

Thanks in advance!!

with regards,

Gulshan

Re: How to permanently remove disk from hdfs?

sandyy006 — Wed, 16 May 2018 16:39:03 GMT

@Gulshan Agivetova You can remove the directory from this property through ambari : dfs.datanode.data.dir and do a rolling restart of datanodes. Make sure you don't have any missing/under-replicated blocks before restarting the new datanode.

Re: How to permanently remove disk from hdfs?

a_gulshani — Wed, 16 May 2018 16:59:17 GMT

Oh, great! Thank you very much Sandeep!!