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Posted to dev@hive.apache.org by "Riju Trivedi (Jira)" <ji...@apache.org> on 2020/05/14 15:06:00 UTC

[jira] [Created] (HIVE-23471) Statement.executeUpdate() does not return correct affected records causing "No such lock"

Riju Trivedi created HIVE-23471:
-----------------------------------

             Summary: Statement.executeUpdate() does not return correct affected records causing "No such lock"
                 Key: HIVE-23471
                 URL: https://issues.apache.org/jira/browse/HIVE-23471
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 3.1.0
            Reporter: Riju Trivedi
            Assignee: Denys Kuzmenko


In TxnHandler.acquire() call , Statement.executeUpdate() does not return correct  number of records updated in HIVE_LOCKS table as requested number of locks.

This results in error "*Couldn't find a lock we just created! No such lock(s)*" as acquire is rolled back.
{code:java}
int rc = stmt.executeUpdate(s);
  if (rc < locksBeingChecked.size()) {
    LOG.debug("Going to rollback acquire(Connection dbConn, Statement stmt, List<LockInfo> locksBeingChecked)");
    dbConn.rollback();
  /*select all locks for this ext ID and see which ones are missing*/
  StringBuilder sb = new StringBuilder("No such lock(s): (" + JavaUtils.lockIdToString(extLockId) + ":");
{code}



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