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ASF GitHub Bot logged work on BEAM-9474: ---------------------------------------- Author: ASF GitHub Bot Created on: 11/Mar/20 19:27 Start Date: 11/Mar/20 19:27 Worklog Time Spent: 10m Work Description: tweise commented on pull request #11084: [BEAM-9474] Improve robustness of BundleFactory and ProcessEnvironment URL: https://github.com/apache/beam/pull/11084#discussion_r391209772 ########## File path: runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/DefaultJobBundleFactory.java ########## @@ -352,20 +407,18 @@ public RemoteBundle getBundle( // The blocking queue of caches for serving multiple bundles concurrently. currentCache = availableCaches.take(); client = currentCache.getUnchecked(executableStage.getEnvironment()); - client.ref(); currentClient = preparedClients.get(client); if (currentClient == null) { // we are using this client for the first time preparedClients.put(client, currentClient = prepare(client, executableStage)); // cleanup any expired clients - preparedClients.keySet().removeIf(c -> c.bundleRefCount.get() == 0); + preparedClients.keySet().removeIf(c -> c.bundleRefCount.get() <= 0); Review comment: On the flip side, this could hide a bug in the reference counting. That could be covered with tests though. Not important for this PR. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 401711) Time Spent: 5.5h (was: 5h 20m) > Environment cleanup is not robust enough and may leak resources > --------------------------------------------------------------- > > Key: BEAM-9474 > URL: https://issues.apache.org/jira/browse/BEAM-9474 > Project: Beam > Issue Type: Bug > Components: java-fn-execution > Reporter: Maximilian Michels > Assignee: Maximilian Michels > Priority: Major > Time Spent: 5.5h > Remaining Estimate: 0h > > The cleanup code in {{DefaultJobBundleFactory}} and its {{RemoteEnvironment}} > s may leak resources. This is especially a concern when the execution engines > reuses the same JVM or underlying machines for multiple runs of a pipeline. -- This message was sent by Atlassian Jira (v8.3.4#803005)