Github user gauravgopi123 commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/185#discussion_r47723181
--- Diff:
engine/src/main/java/com/datatorrent/stram/StreamingContainerManager.java ---
@@ -1907,6 +1920,12 @@ public void updateRecoveryCheckpoints(PTOperator
operator, UpdateCheckpointsCont
if (operator.getState() == PTOperator.State.ACTIVE && (ctx.currentTms
- operator.stats.lastWindowIdChangeTms) >
operator.stats.windowProcessingTimeoutMillis) {
// if the checkpoint is ahead, then it is not blocked but waiting
for activation (state-less recovery, at-most-once)
if (ctx.committedWindowId.longValue() >=
operator.getRecoveryCheckpoint().windowId) {
+ LOG.info("Marking operator {} blocked: time since last windowId
change={}, timeout={}, committed windowId={}, recovery windowId={}",
--- End diff --
What is the impact of an operator being blocked? Should log level be warn
if it impacts performance?
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