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Avoid healing to be stuck with many concurrent event listeners (#10111)

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If there are many listeners to bucket notifications or to the trace
subsystem, healing fails to work properly since it suspends itself when
the number of concurrent connections is above a certain threshold.

These connections are also continuous and not costly (*no disk access*),
it is okay to just ignore them in waitForLowHTTPReq().
This commit is contained in:
Anis Elleuch
2020-07-22 21:16:55 +01:00
committed by GitHub
parent ad8b53e6d4
commit 456b2ef6eb
2 changed files with 10 additions and 1 deletions
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4
cmd/background-heal-ops.go
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@@ -56,6 +56,10 @@ func (h *healRoutine) queueHealTask(task healTask) {
}
func waitForLowHTTPReq(tolerance int32) {
// Bucket notification and http trace are not costly, it is okay to ignore them
// while counting the number of concurrent connections
tolerance += int32(globalHTTPListen.NumSubscribers() + globalHTTPTrace.NumSubscribers())
if httpServer := newHTTPServerFn(); httpServer != nil {
// Wait at max 10 minute for an inprogress request before proceeding to heal
waitCount := 600