The details of my answer depend on what indexing process you are looking at really, but the overall answer is essentially "no".
I think a more useful question here is "why do you think you want to stop the indexing service"? As that will enable us to give you a more useful answer/explanation and probably help you get to your goal.
OK let me explain, is it possible to copy the jira_home and jira installation directory and restore the database dump and create an exact copy of JIRA instance in a usable condition without reindexing ? for this the index files have to be in a consistent state.So, i was thinking if i somehow could stop JIRA reindexing service and take a copy of the index files, i am sure of it being in a consistent state.
Ah, ok, that makes sense.
There's no point though. If you want an exact copy of a working Jira created from another one, then you need to STOP the Jira completely. Not just the indexing, you need to stop everything.
Once a Jira has been stopped, you can pick the whole thing up and copy it over.
Well I actually wan't to avoid reindexing when I recreate a copy of JIRA, i see only 2 variables here 1. database dump 2. index files
If i can somehow stop indexing serivce and take a copy of it, i should be able to recreate the JIRA instance without stopping other services.
Well, i understand that the index files and database state will be slightly off, i think this should be OK..
No, that's the point, they won't be "slightly off", there's a good chance that they will be completely broken.
If you copy a Jira that is shut down, you won't need to reindex. If you copy an active one, then in most cases you'll get a few blips in the index, but in some cases, you'll need to re-index completely (The last time I tested this in a DR scenario, it was around 40%).
Shutting down the indexing service while you take a backup is a complete red-herring, it will actually make things worse as the index you're copying will be even further away from the database.
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