Stanislau Hlebik f3af697f30 mononoke: introduce BackgroundUnlessTooSlow session class and use it in blobstore ... Summary: Some time ago (see D25910464 (fca761e153)) we've started using Background session class while deriving data. This was done to avoid overloading blobstore sync queue - if Background session class is set then multiplex blobstore waits for all blobstores to finish instead of writing to the blobstore sync queue right away. However if any of the blobstores fails then we start writing to the blobstore sync queue. In theory it should have avoided the problem of overloading blobstore sync queue while having the same multiplex reliability (i.e. if only a single blobstore fails the whole multiplex put doesn't fail) Unfortunately there was a flaw - if blobstore put of a single blobstore wasn't failing but was just too slow, then the whole multiplexed put operation becomes too slow. This diff fixes this flaw by adding a timeout - if multiplexed put is taking too long then we fallback to writing entries to the blobstore sync queue. Note that I added a new session class - BackgroundUnlessTooSlow - because I figured that in some cases we are ok with waiting a long time but not writing to the sync queue. Skiplist builder might be a good example of that - since it's doing overwrites then we don't want to write to the blobstore sync queue at all, because healer doesn't process overwrites correctly. Reviewed By: farnz Differential Revision: D30892377 fbshipit-source-id: 69ac1795002b124e11daac13d8bfe59895191168		2021-09-13 08:09:12 -07:00
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fs	pretty print rage sections and normalize underlining	2021-09-10 23:54:48 -07:00
hg-server	third-party/rust: bump tracing versions in preparation for patching	2021-09-09 22:38:25 -07:00
integration	pretty print rage sections and normalize underlining	2021-09-10 23:54:48 -07:00
locale
mononoke	mononoke: introduce BackgroundUnlessTooSlow session class and use it in blobstore	2021-09-13 08:09:12 -07:00
scm	HGPLAIN version of createremote	2021-09-13 06:15:04 -07:00
test_support	test_support: canonicalize the temporary directory path	2021-08-16 16:08:45 -07:00
test-data	fix fsck snapshot integration tests	2021-07-14 16:20:04 -07:00
.gitignore
Eden.project.toml