Map-Reduce登录Hive-Tez [英] Map-Reduce Logs on Hive-Tez
问题描述
我想在Hive-Tez上运行查询后获得Map-Reduce日志的解释? INFO之后的内容:传达的是什么?
在这里,我附上了一个示例
INFO:Session已经打开
INFO:Dag name:SELECT a.Model ...)
信息:Tez会话已关闭。重新开启...
信息:会话重新建立。
INFO:
信息:状态:正在运行(在应用程序ID为application_14708112341234_1234的YARN群集上执行)
信息:地图1: - / - 地图3: - / - 地图4: - / - 地图7: - / - 减速器2:0/15减速器5:0/26减速器6:0/13
信息:地图1: - / - 地图3:0/118地图4:0 / 118地图7:0/1减速器2:0/15减速器5:0/26减速器6:0/13
信息:地图1:0/118地图3:0/118地图4:0/118地图7:0/1减速器2:0/15减速器5:0/26减速器6:0/13
信息:地图1:0/118地图3:0/118地图4:0(+5)/ 118地图7:0/1减速器2:0/15减速器5:0/26减速器6:0/13
信息:地图1:0/118地图3:0(+5)/ 118地图4: 0(+7)/ 118地图7:0(+1)/ 1减速器2:0/15减速器5:0/26减速器6:0/13
信息:地图1:0/118地图3: 0(+15)/ 118图4:0(+18)/ 118图7:0(+1)/ 1还原剂2:0/15还原剂5:0/26还原剂6:0/13
您发布的日志是DAG执行日志。 DAG由
映射1,映射3,映射4,映射7顶点和缩减器组成:Reducer 2,Reducer 5,Reducer 6
INFO:Map 1: - / -
这意味着顶点没有被初始化,映射器的数量还没有被计算。
地图4:0(+7)/ 118
- 这意味着总共有118个mappers,7个他们并行运行,0完成,118-7 = 111等待处理。
Reducer 2:0/15 - This意味着总共有15个减速器,其中0个正在运行,其中0个已完成(15个减速器待定)。
负数(在你的例子中没有这样的数字)=失败或死亡的mapper或reducer的数量
I want to get the interpretation of Map-Reduce logs after running a query on Hive-Tez ? What the lines after INFO: conveys ? Here I have attached a sample
INFO : Session is already open
INFO : Dag name: SELECT a.Model...)
INFO : Tez session was closed. Reopening...
INFO : Session re-established.
INFO :
INFO : Status: Running (Executing on YARN cluster with App id application_14708112341234_1234)
INFO : Map 1: -/- Map 3: -/- Map 4: -/- Map 7: -/- Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
INFO : Map 1: -/- Map 3: 0/118 Map 4: 0/118 Map 7: 0/1 Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
INFO : Map 1: 0/118 Map 3: 0/118 Map 4: 0/118 Map 7: 0/1 Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
INFO : Map 1: 0/118 Map 3: 0/118 Map 4: 0(+5)/118 Map 7: 0/1 Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
INFO : Map 1: 0/118 Map 3: 0(+5)/118 Map 4: 0(+7)/118 Map 7: 0(+1)/1 Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
INFO : Map 1: 0/118 Map 3: 0(+15)/118 Map 4: 0(+18)/118 Map 7: 0(+1)/1 Reducer 2: 0/15 Reducer 5: 0/26 Reducer 6: 0/13
The log you posted is DAG execution log. The DAG consists of Map 1,Map 3,Map 4,Map 7 mappers vertices and reducers: Reducer 2,Reducer 5,Reducer 6
INFO : Map 1: -/-
This means that the vertex is not initialized, the number of mappers are not calculated yet.
Map 4: 0(+7)/118
- This means that totally there are 118 mappers, 7 of them are running in parallel, 0 completed yet, 118-7=111 are pending.
Reducer 2: 0/15 - This means that totally there are 15 reducers, 0 of them are running, 0 of them are completed (15 reducers pending).
Negative figures (there are no such in your example) = number of failed or killed mappers or reducers
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