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[BUG] MapReduce在worker集群脑裂的情况下无法顺利结束 #12

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KFCFans opened this issue Jun 16, 2020 · 1 comment
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[BUG] MapReduce在worker集群脑裂的情况下无法顺利结束 #12

KFCFans opened this issue Jun 16, 2020 · 1 comment
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KFCFans commented Jun 16, 2020

Describe the bug
当某个任务的TaskTracker与server出现网络阻断时，server单方面判断TaskTracker down，启动故障转移策略，随意选择新的机器成为TaskTracker，重试整个任务。假如此时原先的TaskTracker所处网络恢复，该任务就存在着两个 TaskTracker，进而导致各种数据覆盖而无法结束任务。

To Reproduce
实际情况中极小概率出现，仅从理论角度分析原因。

Expected behavior
MapReduce处理器能够正常工作

Environment

  • PowerJob Version: 3.0.0
  • Java Version: OpenJDK 8
  • OS: CentOS 8.1
@KFCFans KFCFans added the bug Something isn't working label Jun 16, 2020
@KFCFans KFCFans self-assigned this Jun 16, 2020
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KFCFans commented Jun 16, 2020

fixed in v3.0.1

@KFCFans KFCFans closed this as completed Jun 16, 2020
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