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Improve GC discovery sync performance

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Improve GC discovery sync performance by only syncing when discovered
resource diffs are detected. Before, the GC worker pool was shut down
and monitors resynced unconditionally every sync period, leading to
significant processing delays causing test flakes where otherwise
reasonable GC timeouts were being exceeded.

Related to https://github.com/kubernetes/kubernetes/issues/49966.
This commit is contained in:
Dan Mace
2017-08-08 15:57:55 -04:00
parent f6cb2fce00
commit 3d6d57a18f
4 changed files with 59 additions and 18 deletions
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2
test/integration/garbagecollector/garbage_collector_test.go
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@@ -265,7 +265,7 @@ func setup(t *testing.T, workerCount int) *testContext {
syncPeriod := 5 * time.Second
startGC := func(workers int) {
go gc.Run(workers, stopCh)
go gc.Sync(restMapper, discoveryClient, syncPeriod, stopCh)
go gc.Sync(clientSet.Discovery(), syncPeriod, stopCh)
}
if workerCount > 0 {