错误ql.Driver（SessionState.java:printError(419））-失败：执行错误，从org.apache.hadoop.hive.ql.exec.mr.MapRedTask返回代码-101

Question

As I have 5 node cluster with 1 Hadoop node in DSE. I 'm trying to execute Analytics with HiveQL on Hiveserver2 thru JDBC connection remotely. After every 50 /54 jobs I'm getting error in Hive log:

ERROR ql.Driver (SessionState.java:printError(419)) - FAILED: Execution Error,
 return code -101 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask

And after that hiveserver2 stop making connection. I'm not sure may be "hive.server2.async.exec.threads = 50" is the root cause.

Can you please suggest any solution on this error?

Answer 1

in your hive-site.xml you can define how many jobs you can execute in parallel:

<property>
    <name>hive.exec.parallel.thread.number</name>
    <value>8</value>
    <description>How many jobs at most can be executed in parallel</description>
  </property>

Hope this helps you