lvyankui created HIVE-25402:
-------------------------------
Summary: When Hive client has multiple statements without close.
queryIdOperation in OperationManager class will exist object that cannot be
released
Key: HIVE-25402
URL: https://issues.apache.org/jira/browse/HIVE-25402
Project: Hive
Issue Type: Bug
Components: HiveServer2
Affects Versions: All Versions
Reporter: lvyankui
Hive client code has multiple statements without close
connect = DriverManager.getConnection(jdbcUrl, user, password);
PrintWriter pw = new PrintWriter("/tmp/hive.result" );
Statement stmt = connect.createStatement();
Statement stmt1 = connect.createStatement();
Statement stmt2 = connect.createStatement();
String sql = "select * from test";
runSQL(stmt, sql, pw);
runSQL(stmt1, sql, pw);
runSQL(stmt2, sql, pw);
OperationManager removeOperation method
private Operation removeOperation(OperationHandle opHandle) {
Operation operation = handleToOperation.remove(opHandle);
if (operation == null) {
throw new RuntimeException("Operation does not exist: " + opHandle);
}
String queryId = getQueryId(operation);
*queryIdOperation.remove(queryId);*
The key of queryIdOperation is queryIdOperation is queryId, queryId is getted
from HiveConf. A new queryId will be generated when a new queryPlan is
generated and set it into HiveConf. If Hive client code has multiple
statements without close, when sqls execute complete, queryIdOperation can only
release the object whose queryId is last generated，other object cannot be
released.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
