Where is the index persisted?

[nghianja]

Hi all,

After I quick started the indextank-engine and indexed some documents, what will happen to the documents if I shut down the engine? Will the documents along with the index be persisted in some files or do I have to reindexed each time I restart the engine?

Sorry for this series of questions but I can't find any user-guide on deploying my personal indextank. Thank you.

[lsemel]

Looks like it writes some files out to ./target/base/index, but I haven't figured out how to get it to reload them when restarting the process. Also, I saw a "dir" parameter referenced in the source code, but changing it doesn't seem to have an effect on where the index is saved.

[santip]

It only persists a portion of the required elements to start over. Under the full stack installation indexengines were never stopped and restarted but merely respawned somewhere else by reindexing from log storage.

Adrnai is working on making the persistence more complete so that an engine can be stopped and restarted in a clean fashion. In the mean time, the only approach for the standalone engine implementation would be to reindex from the source.

[lsemel]

That's pretty important because without that we'd have to be 100%
perfect at keeping it running without it stopping or crashing, or face
long periods of downtime as it reloads from the logs whenever it
restarts.