Allan Yang created HBASE-20611: ---------------------------------- Summary: UnsupportedOperationException may thrown when calling getCallQueueInfo() Key: HBASE-20611 URL: https://issues.apache.org/jira/browse/HBASE-20611 Project: HBase Issue Type: Bug Affects Versions: 2.0.0 Reporter: Allan Yang
HBASE-16290 added a new feature to dump queue info, the method getCallQueueInfo() need to iterate the queue to get the elements in the queue. But, except the Java's LinkedBlockingQueue, the other queue implementations like BoundedPriorityBlockingQueue and AdaptiveLifoCoDelCallQueue don't implement the method iterator(). If those queues are used, a UnsupportedOperationException will be thrown. This can be easily be reproduced by the UT testCallQueueInfo while adding a conf ( conf.set("hbase.ipc.server.callqueue.type", "deadline");) {code} java.lang.UnsupportedOperationException at org.apache.hadoop.hbase.util.BoundedPriorityBlockingQueue.iterator(BoundedPriorityBlockingQueue.java:285) at org.apache.hadoop.hbase.ipc.RpcExecutor.getCallQueueCountsSummary(RpcExecutor.java:166) at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.getCallQueueInfo(SimpleRpcScheduler.java:241) at org.apache.hadoop.hbase.ipc.TestSimpleRpcScheduler.testCallQueueInfo(TestSimpleRpcScheduler.java:164) {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)