Limit indexing to single task a time

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#20 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
backend, search

Research direction

Start by tracing how celery-haystack configures task concurrency and whether COMMAND_WORKERS affects indexing task execution. Check the Xapian indexing path for concurrent WritableDatabase access; done means indexing tasks are limited to one at a time without DatabaseLockError exceptions.

Written by the indexing model from the issue text.

Description

I would like to use haystack + celery-haystack + xapian-haystack. Unfortunatelly "Because Xapian does not support simultaneous WritableDatabase connections. If this occurs an DatabaseLockError exception will be raised by Xapian."

So I thought about limiting tasks number to only one by time. Didn't see a proper setting for that, because as far as I understand your code, the COMMAND_WORKERS=1 is not the solution for that.

Dominant language
Python
Stars
226
Forks
95
No merged PRs in 30d

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