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請您指導我解決此GC開銷和堆空間錯誤。配置單元:GC開銷或堆空間錯誤 - 動態分區表
我使用下面的查詢試圖從另一個表(動態分區)插入分區表:
INSERT OVERWRITE table tbl_part PARTITION(county)
SELECT col1, col2.... col47, county FROM tbl;
我已經跑了下列參數:
export HADOOP_CLIENT_OPTS=" -Xmx2048m"
set hive.exec.dynamic.partition=true;
set hive.exec.dynamic.partition.mode=nonstrict;
SET hive.exec.max.dynamic.partitions=2048;
SET hive.exec.max.dynamic.partitions.pernode=256;
set mapreduce.map.memory.mb=2048;
set yarn.scheduler.minimum-allocation-mb=2048;
set hive.exec.max.created.files=250000;
set hive.vectorized.execution.enabled=true;
set hive.merge.smallfiles.avgsize=283115520;
set hive.merge.size.per.task=209715200;
紗現場還增加.XML:
<property>
<name>yarn.nodemanager.vmem-check-enabled</name>
<value>false</value>
<description>Whether virtual memory limits will be enforced for containers</description>
</property>
<property>
<name>yarn.nodemanager.vmem-pmem-ratio</name>
<value>4</value>
<description>Ratio between virtual memory to physical memory when setting memory limits for containers</description>
</property>
運行免費-m:
total used free shared buffers cached
Mem: 15347 11090 4256 0 174 6051
-/+ buffers/cache: 4864 10483
Swap: 15670 18 15652
其具有1個內核的獨立羣集。準備測試數據以在Spark中運行我的單元測試用例。
你能指導我能做些什麼嗎?
源表具有以下特性:
Table Parameters:
COLUMN_STATS_ACCURATE true
numFiles 13
numRows 10509065
rawDataSize 3718599422
totalSize 3729108487
transient_lastDdlTime 1470909228
謝謝。
我跑了DISTRIBUTE BY,並得到了堆空間錯誤: – Aavik
你沒有提供日誌,因此它是我用的猜測。通常這有助於。你有沒有試圖增加分配的內存?也許它真的用完了內存。看到這個:https://azure.microsoft.com/en-us/documentation/articles/hdinsight-hadoop-hive-out-of-memory-error-oom/而這個:https://blogs.msdn.microsoft。 com/shanyu/2014/07/31/hadoop-yarn-memory-settings-in-hdinsight/ – leftjoin
set hive.vectorized.execution.enabled = true; set hive.vectorized.execution.reduce.enabled = true; set hive.vectorized.execution.reduce.groupby.enabled = true; set yarn.nodemanager.resource.memory-mb = 8192; set yarn.scheduler.minimum-allocation-mb = 2048; set yarn.scheduler.maximum-allocation-mb = 8192; SET hive.tez.container.size = 7168; SET hive.tez.java.opts = -Xmx4096m; – Aavik