How to recover index if replicas are set to zero?


(ElasticSearch Users mailing list) #1

Hi,

If I have an index with 10 shards but no replicas on a 2 node cluster, and
one node goes down. Can I somehow recover the 5 shards to the only running
node? Assuming that I backup the data directory on the node and make it
available to the other node. Is there an API or an automatic way to achieve
this?

Thanks,
Sandeep

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(vineeth mohan-2) #2

Hello Sandeep ,

Instead of backing up the data directory , do a snapshot and you can
restore it later to single node machine or 10 node machine.

SNAPSHOT -
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-snapshots.html#_snapshot

Thanks
Vineeth

On Fri, Aug 22, 2014 at 2:23 PM, 'Sandeep Ramesh Khanzode' via
elasticsearch elasticsearch@googlegroups.com wrote:

Hi,

If I have an index with 10 shards but no replicas on a 2 node cluster, and
one node goes down. Can I somehow recover the 5 shards to the only running
node? Assuming that I backup the data directory on the node and make it
available to the other node. Is there an API or an automatic way to achieve
this?

Thanks,
Sandeep

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(system) #3