最近再hue 集群查詢?nèi)蝿?wù)經(jīng)常失敗，經(jīng)過幾天的觀察，終于找到原因，報(bào)錯(cuò)如下

Status: Failed
Vertex failed, vertexName=Map 1, vertexId=vertex_1514128895713_0770_1_00, diagnostics=[Task failed, taskId=task_1514128895713_0770_1_00_000006, diagnostics=[TaskAttempt 0 failed, info=[Container container_1514128895713_0770_01_000008 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 1 failed, info=[Container container_1514128895713_0770_01_000026 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 2 failed, info=[Container container_1514128895713_0770_01_000036 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 3 failed, info=[Container container_1514128895713_0770_01_000042 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]]], Vertex did not succeed due to OWN_TASK_FAILURE, failedTasks:1 killedTasks:0, Vertex vertex_1514128895713_0770_1_00 [Map 1] killed/failed due to:OWN_TASK_FAILURE]
Vertex killed, vertexName=Reducer 2, vertexId=vertex_1514128895713_0770_1_01, diagnostics=[Vertex received Kill while in RUNNING state., Vertex did not succeed due to OTHER_VERTEX_FAILURE, failedTasks:0 killedTasks:6, Vertex vertex_1514128895713_0770_1_01 [Reducer 2] killed/failed due to:OTHER_VERTEX_FAILURE]
DAG did not succeed due to VERTEX_FAILURE. failedVertices:1 killedVertices:1
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.tez.TezTask. Vertex failed, vertexName=Map 1, vertexId=vertex_1514128895713_0770_1_00, diagnostics=[Task failed, taskId=task_1514128895713_0770_1_00_000006, diagnostics=[TaskAttempt 0 failed, info=[Container container_1514128895713_0770_01_000008 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 1 failed, info=[Container container_1514128895713_0770_01_000026 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 2 failed, info=[Container container_1514128895713_0770_01_000036 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]], TaskAttempt 3 failed, info=[Container container_1514128895713_0770_01_000042 finished with diagnostics set to [Container failed, exitCode=-100. Container released on a *lost* node]]], Vertex did not succeed due to OWN_TASK_FAILURE, failedTasks:1 killedTasks:0, Vertex vertex_1514128895713_0770_1_00 [Map 1] killed/failed due to:OWN_TASK_FAILURE]Vertex killed, vertexName=Reducer 2, vertexId=vertex_1514128895713_0770_1_01, diagnostics=[Vertex received Kill while in RUNNING state., Vertex did not succeed due to OTHER_VERTEX_FAILURE, failedTasks:0 killedTasks:6, Vertex vertex_1514128895713_0770_1_01 [Reducer 2] killed/failed due to:OTHER_VERTEX_FAILURE]DAG did not succeed due to VERTEX_FAILURE. failedVertices:1 killedVertices:1

 分析：

　　taskId=task_1514128895713_0770_1_00_000006 失敗了幾次，失敗的原因是container被高優(yōu)先級(jí)的任務(wù)搶占了。而task最大的失敗次數(shù)默認(rèn)是4.當(dāng)集群上的任務(wù)比較多時(shí)，比較容易出現(xiàn)這個(gè)問題。還有一個(gè)原因我認(rèn)為container設(shè)置的內(nèi)存太小，我這是1.5G 不過沒有修改，我設(shè)置了以下參數(shù)就解決了：

解決方案：

　　問題解決了，希望幫到你