tree 9eb8d5cdc35d9283866ca4d5670ea3e5513171e0
parent b98f035d73f491b27b9e0c482709142f29361226
author Adithya Chakilam <achakila@codeaurora.org> 1634843366 -0500
committer Adithya Chakilam <achakila@codeaurora.org> 1634845106 -0500

Parallelize Schema 108

This schema iterates through all open changes by repository and updates
project groups, parallelizing it would be efficient. Default number of
migration threads is equal to number of processors or can be manually
configured through cache.projects.loadThreads property.

This reduced runtime for migration 108 on a gerrit site with ~16k repos
from ~1800secs to ~850secs on a machine with 24 processors.

Change-Id: Ie1b847c95f9021d50bfabe6c90954b84fc4528ff