【发布时间】：2016-06-30 06:57:06
【问题描述】：
我正在尝试插入一个 hive 分桶排序表并遇到减速器抛出的负数组大小异常。请在下面找到堆栈跟踪。
Error: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError: error in shuffle in fetcher#3
at org.apache.hadoop.mapreduce.task.reduce.Shuffle.run(Shuffle.java:134)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:376)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.NegativeArraySizeException
at org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:56)
at org.apache.hadoop.io.BoundedByteArrayOutputStream.<init>(BoundedByteArrayOutputStream.java:46)
at org.apache.hadoop.mapreduce.task.reduce.InMemoryMapOutput.<init>(InMemoryMapOutput.java:63)
at org.apache.hadoop.mapreduce.task.reduce.MergeManagerImpl.unconditionalReserve(MergeManagerImpl.java:305)
at org.apache.hadoop.mapreduce.task.reduce.MergeManagerImpl.reserve(MergeManagerImpl.java:295)
at org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyMapOutput(Fetcher.java:514)
at org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java:336)
at org.apache.hadoop.mapreduce.task.reduce.Fetcher.run(Fetcher.java:193)
而我的表 DDL 是 （为了便于阅读，只显示列的子集。实际 DDL 有 100 列）
CREATE TABLE clustered_sorted_orc( conv_type string,
multi_dim_id int,
multi_key_id int,
advertiser_id bigint,
buy_id bigint,
day timestamp
PARTITIONED BY(job_instance_id int)
CLUSTERED BY(conv_type) SORTED BY (day) INTO 8 BUCKETS
STORED AS ORC;
插入语句是
FROM not_clustered_orc
INSERT OVERWRITE TABLE clustered_sorted_orc PARTITION(job_instance_id)
SELECT conv_type ,multi_dim_id ,multi_key_id ,advertiser_id,buy_id ,day, job_instance_id
设置了以下配置单元属性
set hive.enforce.bucketing = true;
set hive.exec.dynamic.partition.mode=nonstrict;
这是来自 MergerManagerImpl 的日志 sn-p，如果有帮助，它会指定 ioSortFactor、mergeThreshold 等。
2016-06-30 05:57:20,518 INFO [main] org.apache.hadoop.mapreduce.task.reduce.MergeManagerImpl: MergerManager: memoryLimit=12828540928, maxSingleShuffleLimit=3207135232, mergeThreshold=8466837504, ioSortFactor=64, memToMemMergeOutputsThreshold=64
我正在使用 CDH 5.7.1、Hive1.1.0、Hadoop 2.6.0。有没有人遇到过类似的问题？非常感谢任何帮助。
【问题讨论】：
-
如果是一次在插入时间进行排序。
标签： hadoop mapreduce hive hadoop2 cloudera-cdh