a198720 opened a new pull request #2213: 1. when create the oap server first. the remote client is null or emp… URL: https://github.com/apache/incubator-skywalking/pull/2213 …ty. so need handle the exception : java.lang.ArithmeticException: / by zero Please answer these questions before submitting pull request - Why submit this pull request? - [x] Bug fix - [ ] New feature provided - [ ] Improve performance - Related issues ___ ### Bug fix - Bug description. when i first run oap server, it will have the following exception . I think this is unreasonable and can be prevented from being disposed of. 2019-01-28 06:15:33,614 - org.apache.skywalking.oap.server.core.analysis.worker.IndicatorRemoteWorker - 53 [DataCarrier.IndicatorAggregateWorker.instance_jvm_memory_heap.Consumser.0.Thread] ERROR [] - / by zero java.lang.ArithmeticException: / by zero at org.apache.skywalking.oap.server.core.remote.selector.HashCodeSelector.select(HashCodeSelector.java:32) ~[server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.remote.RemoteSenderService.send(RemoteSenderService.java:50) ~[server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorRemoteWorker.in(IndicatorRemoteWorker.java:51) ~[server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorRemoteWorker.in(IndicatorRemoteWorker.java:33) ~[server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorAggregateWorker.lambda$sendToNext$0(IndicatorAggregateWorker.java:93) ~[server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at java.util.HashMap$Values.forEach(HashMap.java:981) [?:1.8.0_191] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorAggregateWorker.sendToNext(IndicatorAggregateWorker.java:88) [server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorAggregateWorker.onWork(IndicatorAggregateWorker.java:73) [server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorAggregateWorker.access$100(IndicatorAggregateWorker.java:38) [server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.oap.server.core.analysis.worker.IndicatorAggregateWorker$AggregatorConsumer.consume(IndicatorAggregateWorker.java:131) [server-core-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.apm.commons.datacarrier.consumer.ConsumerThread.consume(ConsumerThread.java:101) [apm-datacarrier-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] at org.apache.skywalking.apm.commons.datacarrier.consumer.ConsumerThread.run(ConsumerThread.java:68) [apm-datacarrier-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT] - How to fix? ___ ### New feature or improvement - Describe the details and related test reports.
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