在tez抛出“没有运行LLAP Daemons”错误

Question

我有一个LLAP服务，运行在亚马逊电子病历上的纱线集群上。这是显示llap服务处于打开状态的图像，它的名称是llap_service

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我将"hive.llap.daemon.service.hosts“设置为"@llap_service"，但是我在hive中的查询无法成功，日志如下所示：

2018-01-08 08:22:43,866 [INFO] [LlapScheduler] |tezplugins.LlapTaskSchedulerService|: Timeout monitor task not started. Timeout future state: false, #instances: 0
2018-01-08 08:22:43,866 [INFO] [TaskSchedulerEventHandlerThread] |tezplugins.LlapTaskSchedulerService|: PendingTasksInfo=numPriorityLevels=5. [p=38,c=2][p=41,c=2][p=44,c=1][p=50,c=2][p=89,c=22]. totalPendingTasks=29. delayedTaskQueueSize=0
2018-01-08 08:22:43,866 [INFO] [LlapScheduler] |tezplugins.LlapTaskSchedulerService|: Inadequate total resources before scheduling pending tasks. Signalling scheduler timeout monitor thread to start timer.
2018-01-08 08:22:43,866 [INFO] [TaskSchedulerEventHandlerThread] |tezplugins.LlapTaskSchedulerService|: Received allocateRequest. task=attempt_1515129349345_0057_1_08_000022_0, priority=89, capability=<memory:2048, vCores:1>, hosts=null
2018-01-08 08:22:43,866 [INFO] [LlapScheduler] |tezplugins.LlapTaskSchedulerService|: Timeout monitor task not started. Timeout future state: false, #instances: 0
2018-01-08 08:22:43,866 [INFO] [TaskSchedulerEventHandlerThread] |tezplugins.LlapTaskSchedulerService|: PendingTasksInfo=numPriorityLevels=5. [p=38,c=2][p=41,c=2][p=44,c=1][p=50,c=2][p=89,c=23]. totalPendingTasks=30. delayedTaskQueueSize=0
2018-01-08 08:22:43,866 [INFO] [LlapScheduler] |tezplugins.LlapTaskSchedulerService|: Inadequate total resources before scheduling pending tasks. Signalling scheduler timeout monitor thread to start timer.
2018-01-08 08:22:43,867 [INFO] [LlapScheduler] |tezplugins.LlapTaskSchedulerService|: Timeout monitor task not started. Timeout future state: false, #instances: 0
2018-01-08 08:22:50,987 [INFO] [LlapTaskSchedulerTimedLogThread] |tezplugins.LlapTaskSchedulerService|: Stats for current dag: NumPreemptedTasks=0, NumRequestedAllocations=30, NumRequestsWithlocation=4, NumLocalAllocations=0,NumNonLocalAllocations=0,NumTotalAllocations=0,NumRequestsWithoutLocation=26, NumRejectedTasks=0, NumCommFailures=0, NumDelayedAllocations=2, LocalityBasedAllocationsPerHost={}, NumAllocationsPerHost={}
2018-01-08 08:23:31,081 [INFO] [AMRM Callback Handler Thread] |rm.YarnTaskSchedulerService|: Allocated: <memory:0, vCores:0> Free: <memory:6477824, vCores:1> pendingRequests: 0 delayedContainers: 0 heartbeats: 51 lastPreemptionHeartbeat: 50
2018-01-08 08:23:42,334 [INFO] [LlapTaskSchedulerTimeoutMonitor] |tezplugins.LlapTaskSchedulerService$SchedulerTimeoutMonitor|: Reporting SERVICE_UNAVAILABLE error as no instances are running
2018-01-08 08:23:42,336 [WARN] [TaskSchedulerAppCallbackExecutor #0] |tez.Utils|: Error reported by TaskScheduler [[2:LLAP]][SERVICE_UNAVAILABLE] No LLAP Daemons are running, Failing dag: [SELECT d_placement.name  AS `d_placem...DESC(Stage-1), dag_1515129349345_0057_1]

在没有LLAP的情况下，有谁能告诉我我哪里错了？非常感谢。

Answer 1

你需要从日志中找出为什么LLAP恶魔没能启动。在RM > Slider应用程序>容器日志中，您可能会看到如下内容

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"LLAP服务主机从'@‘开始，但没有设置hive.zookeeper.quorum。hive.zookeeper.quorum必须是set.You，需要在hivesite.xml中添加以下属性。“

<property>
    <name>hive.zookeeper.quorum</name>
    <value><hostname1>:2181,<hostname2>:2181,[...]</value>
</property>

并重新生成滑块llap纱线应用程序。

这个博客帖子帮了很多忙！