[英]Hive - Out of Memory Exception - Java Heap Space
我在鑲木地板文件(使用Spark創建)上運行Hive插入。 Hive插入使用partitioned by子句。 但最后當屏幕正在打印“加載分區{= xyz,= 123,= abc}等消息時,Java堆空間異常即將到來。
java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.createEntry(HashMap.java:901)
at java.util.HashMap.addEntry(HashMap.java:888)
at java.util.HashMap.put(HashMap.java:509)
at org.apache.hadoop.hive.metastore.api.Partition.<init>(Partition.java:229)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.deepCopy(HiveMetaStoreClient.java:1356)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getPartitionWithAuthInfo(HiveMetaStoreClient.java:1003)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:89)
at com.sun.proxy.$Proxy9.getPartitionWithAuthInfo(Unknown Source)
at org.apache.hadoop.hive.ql.metadata.Hive.getPartition(Hive.java:1611)
at org.apache.hadoop.hive.ql.metadata.Hive.getPartition(Hive.java:1565)
at org.apache.hadoop.hive.ql.exec.StatsTask.getPartitionsList(StatsTask.java:403)
at org.apache.hadoop.hive.ql.exec.StatsTask.aggregateStats(StatsTask.java:150)
at org.apache.hadoop.hive.ql.exec.StatsTask.execute(StatsTask.java:117)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:153)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:85)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1508)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1275)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1093)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:916)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:906)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:423)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:359)
at org.apache.hadoop.hive.cli.CliDriver.processReader(CliDriver.java:456)
at org.apache.hadoop.hive.cli.CliDriver.processFile(CliDriver.java:466)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:748)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:686)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:625)
我在運行作業時設置了以下屬性,並嘗試將值更改為更高和更低,但每次最后我都會發現此錯誤。
切換的屬性:
set mapred.map.tasks=100;
set mapred.reduce.tasks=100;
set mapreduce.map.java.opts=-Xmx4096m;
set mapreduce.reduce.java.opts=-Xmx4096m;
set hive.exec.max.dynamic.partitions.pernode=100000;
set hive.exec.max.dynamic.partitions=100000;
請告訴我這里出了什么問題。 Hive版本是0.13。
hive-env.sh
if [ "$SERVICE" = "cli" ]; then
if [ -z "$DEBUG" ]; then
export HADOOP_OPTS="$HADOOP_OPTS -XX:NewRatio=12 -Xms12288m -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15 -XX:+UseParNewGC -XX:-UseGCOverheadLimit"
else
export HADOOP_OPTS="$HADOOP_OPTS -XX:NewRatio=12 -Xms12288m -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15 -XX:-UseGCOverheadLimit"
fi
fi
# The heap size of the jvm stared by hive shell script can be controlled via:
#
export HADOOP_HEAPSIZE=4096
它可能與HIVE-10149問題有關。 嘗試將hive.optimize.sort.dynamic.partition
設置為true
。
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