After 10 millions documents deleted, I just won 500 mo


Hello everyone,

I need to delete some documents with a particular field with "Delete by query". All is ok, 10 millions are deleted, I go from 14 million to over 4 million.

Before the removal, I was at 9,8 giga. After the removal... 9.3. I just won 500mo ?!

Why ? I must do an additional action ?

Thank you so much for your answers.

(David Pilato) #2

That's the way delete documents works.
It creates new files marking documents as deleted.

Then after a period of time everything is compacted and you can get the space back.
Note that you can run forcemerge API to force this. It will use a lot of IOs though.

That's the reason it's often better to reindex 4m docs than deleting 10m!

Reindex API makes that even easier.


Thank your for your answer.

It's workable to reindex with an elasticsearch query ?

(David Pilato) #4


(system) #5

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.