I indexed some data in elasticsearch and have a index of around 18 Gb ,
with 10 Shards for the index, with 0 replicas and using the default
"tiered" merge policy.
I issued a Optimize command , the number of segments came down to 22-30 for
each shard , which does not seems to go down any further , irrespective of
whether i specify the max_num_segments in the optimize call or not.
I am thinking of changing the merge policy to log_doc, (after closing the
index) , but not able to find some proper documentation .
My main aim is improving the search performance , by bringing down the
number of segments for each shard , which i am thinking to bring in effect
by changing the merge policy and then issuing an optimize call.
Also , the argument that is sent along the optimize call , max_num_segments
, is it for max segments for a shard or an index ?
i tried changing the settings with "index.merge_policy":"log_doc" and
but it accepts both the parameters , does not returns which one is valid
and in effect , even if i specify the wrong input , i.e "loc_doc_123".
Could somebody please help me resolve the issue ?
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