@jss hi, thanks for your detailed reply and i was sorry it's a long time it's a long week for me I use oozie to drive my hive on tez job via hiveserver2 to have this issue. Afterwards I change hive execution engine to mr, the job goes well, doesn't not occur this issue again, but job finished so slowly So i think it's about tez lib It's hard to use $JAVA_HOME/bin/jinfo $PID | grep java.class.path to get the hive runtime classpath I pick up some information from oozie console HADOOP_CLASSPATH=::/usr/share/java/mysql-connector-java-5.1.17.jar:/usr/share/java/mysql-connector-java.jar:/usr/hdp/2.3.2.0-2950/tez/*:/usr/hdp/2.3.2.0-2950/tez/lib/*:/usr/hdp/2.3.2.0-2950/tez/conf::/usr/share/java/mysql-connector-java-5.1.17.jar:/usr/share/java/mysql-connector-java.jar:/usr/hdp/2.3.2.0-2950/tez/*:/usr/hdp/2.3.2.0-2950/tez/lib/*:/usr/hdp/2.3.2.0-2950/tez/conf:
and uploaded my classpath info as an attachment hope this can provide u more information to help me solve this issue I appreciate it, thank youclasspath.txt
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