Elasticsearch: Updating index analyzer allows inconsistent indexing
As described in indices-update-settings, it is possible to update analyzers while an index is closed. (The doc only shows adding an analyzer, but in fact it is possible to change an existing one.)
This leaves open the possibility to have documents indexed inconsistently before and after such a change. I think consideration should be given to disabling that capability.
cc: @s1monw
GlenRSmith
>All comments
We discussed this in fixit-friday and this is a general / long standing (by design... I can already hear somebody say it's a feature) issue. We need to do a significant amount of work to fix this but first and foremost we need to find a good way to fix synonym filter. Synonyms should be updateable but only for search analyzers which is not the case. there are also issues with synonyms in general that we need to fix ie. files can be changed on disk and the index will be corrupted.
We will look into fixing this issue hopefully soon.
s1monw
on 12 Jan 2018
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Most helpful comment
We discussed this in fixit-friday and this is a general / long standing (by design... I can already hear somebody say it's a feature) issue. We need to do a significant amount of work to fix this but first and foremost we need to find a good way to fix synonym filter. Synonyms should be updateable but only for search analyzers which is not the case. there are also issues with synonyms in general that we need to fix ie. files can be changed on disk and the index will be corrupted.
We will look into fixing this issue hopefully soon.