fix affiliation chunking and git plugin performance #634
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j-lanson
added
type: bug
j-lanson
requested review from
alilleybrinker,
patrickjcasey and
mchernicoff
For really large repos, affiliation might send a request to the git plugin containing all commits such that the request is larger than the gRPC maximum. The Hipcheck gRPC protocol currently does not allow for chunked queries, so the affiliation plugin has been modified to do its own chunking internally.
Although the git plugin's `RawCommit` struct contains author and committer information, the `Commit` struct does not. For looking up the contributors to a commit we were doing a lot of expensive and wasteful computation to re-engineer what is already available in `RawCommit`. This commit exposes more functionality to the query endpoint functions to get `RawCommit` collections so we spend less time looking for information that was already there before we discarded it.
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Resolves #603 .
As I mentioned in the issue comment, the cause of @alilleybrinker's issue related to gRPC message side stems from large outbound requests from the affiliation plugin to the git plugin when analyzing large repositories like
torvalds/linux. The Hipcheck gRPC protocol does not support request chunking at present, only response chunking. Updated affiliation plugin to do some chunking of outbound requests of its own, until the time this issue is resolvedOnce I fixed that, I found that affiliation's requests to git were taking an extremely and unacceptably long time to execute, and found our way of getting contributor-commit information was extremely inefficient and could be improved by using
RawCommits instead ofCommit.