Sorry, I didn't word my original message very well. The situation is we have a 
larger max segment size currently configured (let's say 10GB) and we want to 
update the config to reduce the max segment size (let's say 5GB). Will we need 
to reindex for that reduction to take effect? I have only seen 
code/explanations around merging (i.e. Joining two segments into larger 
segments) but never anything about segment splitting (which I imagine doesn't 
happen?)

From: users@solr.apache.org At: 12/09/24 12:22:38 UTC-5:00To:  
users@solr.apache.org
Subject: Re: Merge Policy Max Segment Size + Reindexing

As far as I know it does not require reindexing. But not sure if there is
no NRT is happening will the above take effect .

It is good to read.
https://blog.mikemccandless.com/2011/02/visualizing-lucenes-segment-merges.html


Thanks,
Ramesh

On Mon, Dec 9, 2024 at 11:57 AM Kevin Liang (BLOOMBERG/ 919 3RD A) <
klian...@bloomberg.net> wrote:

> Hello,
>
> We've configured a merge policy factory such that max segment size is
> greater than the default. If we update the configuration and restart the
> cloud, will the lucene segments automatically be split to meet the smaller
> max segment size? Or will this require a full reindex of the data?
>
> -Kevin Liang


-- 
Thanks,
Ramesh


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