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Add a GC deadlock note

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Dan Mace
2017-11-27 16:50:29 -05:00
parent eeeabce831
commit a62d07ce2a
1 changed files with 3 additions and 0 deletions
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3
pkg/controller/garbagecollector/garbagecollector.go
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@@ -205,6 +205,9 @@ func (gc *GarbageCollector) Sync(discoveryClient discovery.DiscoveryInterface, p
utilruntime.HandleError(fmt.Errorf("failed to sync resource monitors: %v", err))
return
}
// TODO: WaitForCacheSync can block forever during normal operation. Could
// pass a timeout channel, but we have to consider the implications of
// un-pausing the GC with a partially synced graph builder.
if !controller.WaitForCacheSync("garbage collector", stopCh, gc.dependencyGraphBuilder.IsSynced) {
utilruntime.HandleError(fmt.Errorf("timed out waiting for dependency graph builder sync during GC sync"))
return