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From "Bhagwan S. Soni" <bhgwnsson...@gmail.com>
Subject Hive: Kryo Exception
Date Wed, 29 Apr 2015 14:31:06 GMT
Hi Hive Users,

I'm executing one of my HQL query which has join, union and insert
overwrite operation, which is working fine if i run it just once.
If i execute the same job second I'm facing this issue.
Can someone help me to identify  in which scenario we get this exception ?
Please find attachment to get the complete log for the same.

Error: java.lang.RuntimeException:
org.apache.hive.com.esotericsoftware.kryo.KryoException: Encountered
unregistered class ID: 107
Serialization trace:
rowSchema (org.apache.hadoop.hive.ql.exec.MapJoinOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.SelectOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.MapJoinOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.FilterOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.SelectOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.UnionOperator)
childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)
    at
org.apache.hadoop.hive.ql.exec.Utilities.getBaseWork(Utilities.java:364)
    at
org.apache.hadoop.hive.ql.exec.Utilities.getMapWork(Utilities.java:275)
    at
org.apache.hadoop.hive.ql.io.HiveInputFormat.init(HiveInputFormat.java:254)
    at
org.apache.hadoop.hive.ql.io.HiveInputFormat.pushProjectionsAndFilters(HiveInputFormat.java:440)
    at
org.apache.hadoop.hive.ql.io.HiveInputFormat.pushProjectionsAndFilters(HiveInputFormat.java:433)
    at
org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getRecordReader(CombineHiveInputFormat.java:587)
    at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.<init>(MapTask.java:169)
    at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:429)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
    at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
    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:1614)
    at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163)
Caused by: org.apache.hive.com.esotericsoftware.kryo.KryoException:
Encountered unregistered class ID: 107
Serialization trace:
rowSchema (org.apache.hadoop.hive.ql.exec.MapJoinOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.SelectOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.MapJoinOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.FilterOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.SelectOperator)
parentOperators (org.apache.hadoop.hive.ql.exec.UnionOperator)
childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)

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