Hive - 内存不足异常 - Java堆空间

我在parquet文件（使用Spark创建）上运行Hive插入。 Hive插入使用分区的子句。但在结束的时候，屏幕印刷像“加载分区的消息{= XYZ，= 123 = ABC} Java堆空间异常来。Hive - 内存不足异常 - Java堆空间

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)

我已运行工作，而下面的属性，试图将值更改为更高和更低的，但最终每次我发现这个错误

属性切换：。

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;

请建议是怎么回事错在这里蜂巢版本是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

来源

2015-10-13 Kunal

问题在于创建动态分区的数量。目前查询正在创建〜38000个分区。为了使这些工作正常工作，我们删除了一个分区级别，这使得动态分区的数量达到〜1400个。因此完成了查询。但关于内存的主要问题仍然存在。 – Kunal

这可能与HIVE-10149问题。尝试将设置为true。

来源

2016-07-27 11:34:22 schernichkin

我有同样的问题，这不起作用:( –

Hive - 内存不足异常 - Java堆空间

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