Maja Kabiljo created GIRAPH-853:
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Summary: Fix concurrency issue in GiraphMetrics
Key: GIRAPH-853
URL: https://issues.apache.org/jira/browse/GIRAPH-853
Project: Giraph
Issue Type: Bug
Reporter: Maja Kabiljo
Assignee: Maja Kabiljo
Tests sometimes fail due to concurrency issue in GiraphMetrics when adding
observers
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819)
at java.util.ArrayList$Itr.next(ArrayList.java:791)
at
org.apache.giraph.metrics.GiraphMetrics.resetSuperstepMetrics(GiraphMetrics.java:134)
at
org.apache.giraph.graph.GraphTaskManager.checkTaskState(GraphTaskManager.java:829)
...
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