我正试图插入一个hive bucket排序表，并与减速器抛出的负数组大小异常保持一致。请查看下面的堆栈跟踪。
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)
，我的表DDL是(为了可读性，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
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
设置以下hive属性
set hive.enforce.bucketing = true;
set hive.exec.dynamic.partition.mode=nonstrict;
这是一个来自MergerManagerImpl的日志片段，如果有帮助的话，它指定了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
我使用CDH 5.7.1, Hive1.1.0, Hadoop 2.6.0。以前有人遇到过类似的问题吗?
设置
hive.optimize.sort.dynamic.partition=true