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From "Anuj Phadke (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMPALA-5235) Query throws a NullPointerException on starting impala cluster with logging_level=3
Date Thu, 20 Apr 2017 19:58:04 GMT
Anuj Phadke created IMPALA-5235:
-----------------------------------

             Summary: Query throws a NullPointerException on starting impala cluster with
logging_level=3
                 Key: IMPALA-5235
                 URL: https://issues.apache.org/jira/browse/IMPALA-5235
             Project: IMPALA
          Issue Type: Bug
            Reporter: Anuj Phadke


Ran the same query with log_level=1 and log_level=3. 
The same query runs fine with log_level=1 and throws a null pointer exception when log_level=3

Steps to recreate the issue -
1. With logging level set to 1

./bin/start-impala-cluster.py --log_level=1
[localhost:21000] > select straight_join t1.id, t2.id from functional.alltypes t1 inner
join functional.alltypes t2 on t1.id = t2.id limit 5;
Query: select straight_join t1.id, t2.id from functional.alltypes t1 inner join functional.alltypes
t2 on t1.id = t2.id limit 5
Query submitted at: 2017-04-20 12:38:04 (Coordinator: http://anuj-OptiPlex-9020:25000)
Query progress can be monitored at: http://anuj-OptiPlex-9020:25000/query_plan?query_id=1b4712c36f691117:cb538b9c00000000
+-----+-----+
| id  | id  |
+-----+-----+
| 592 | 592 |
| 597 | 597 |
| 604 | 604 |
| 606 | 606 |
| 610 | 610 |
+-----+-----+
Fetched 5 row(s) in 5.01s

2. log level set to 3
anuj@anuj-OptiPlex-9020:~/Impala$ ./bin/start-impala-cluster.py --log_level=3
[localhost:21000] > select straight_join t1.id, t2.id from functional.alltypes t1 inner
join functional.alltypes t2 on t1.id = t2.id limit 5;
Query: select straight_join t1.id, t2.id from functional.alltypes t1 inner join functional.alltypes
t2 on t1.id = t2.id limit 5
Query submitted at: 2017-04-20 12:38:37 (Coordinator: http://anuj-OptiPlex-9020:25000)
ERROR: NullPointerException: null

Stacktrace from the logs -

I0420 12:38:42.792183  3639 jni-util.cc:176] java.lang.NullPointerException
  at org.apache.impala.planner.PlanNode.getExplainString(PlanNode.java:311)
  at org.apache.impala.planner.PlanNode.getExplainString(PlanNode.java:243)
  at org.apache.impala.planner.DistributedPlanner.createHashJoinFragment(DistributedPlanner.java:477)
  at org.apache.impala.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:121)
  at org.apache.impala.planner.DistributedPlanner.createPlanFragments(DistributedPlanner.java:85)
  at org.apache.impala.planner.Planner.createPlan(Planner.java:132)
  at org.apache.impala.service.Frontend.createExecRequest(Frontend.java:1005)
  at org.apache.impala.service.Frontend.createExecRequest(Frontend.java:1100)
  at org.apache.impala.service.JniFrontend.createExecRequest(JniFrontend.java:155)
I0420 12:38:42.830754  3639 status.cc:119] NullPointerException: null
    @          0x1219ac5  impala::Status::Status()
    @          0x15e9c8e  impala::JniUtil::GetJniExceptionMsg()
    @          0x14a64ec  impala::JniUtil::CallJniMethod<>()
    @          0x14a29fd  impala::Frontend::GetExecRequest()
    @          0x14bfd3b  impala::ImpalaServer::ExecuteInternal()
    @          0x14bf8e2  impala::ImpalaServer::Execute()
    @          0x152b04e  impala::ImpalaServer::query()
    @          0x19e8af6  beeswax::BeeswaxServiceProcessor::process_query()
    @          0x19e8844  beeswax::BeeswaxServiceProcessor::dispatchCall()
    @          0x19d124f  impala::ImpalaServiceProcessor::dispatchCall()
    @          0x11c077c  apache::thrift::TDispatchProcessor::process()
    @          0x2891b8b  apache::thrift::server::TThreadPoolServer::Task::run()
    @          0x287a3f9  apache::thrift::concurrency::ThreadManager::Worker::run()
    @          0x137d943  impala::ThriftThread::RunRunnable()
    @          0x137f06f  boost::_mfi::mf2<>::operator()()
    @          0x137ef05  boost::_bi::list3<>::operator()<>()
    @          0x137ec51  boost::_bi::bind_t<>::operator()()
    @          0x137eb64  boost::detail::function::void_function_obj_invoker0<>::invoke()
    @          0x138d248  boost::function0<>::operator()()
    @          0x164293f  impala::Thread::SuperviseThread()
    @          0x164b2c2  boost::_bi::list4<>::operator()<>()
    @          0x164b205  boost::_bi::bind_t<>::operator()()
    @          0x164b1c8  boost::detail::thread_data<>::run()
    @          0x1b1058a  thread_proxy
    @     0x7f185012d184  start_thread
    @     0x7f184fe5a37d  clone




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