Uploaded image for project: 'MariaDB Connector/J'
  1. MariaDB Connector/J
  2. CONJ-983

Connector/J call may stuck on acquiring lock

    XMLWordPrintable

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 2.7.2
    • 2.7.6
    • Other
    • None

    Description

      Looks like it's possible to get stuck while acquiring lock, like this:

      ... waiting on condition [0x00007f03666a0000]
      java.lang.Thread.State: WAITING (parking)
      at sun.misc.Unsafe.park(Native Method)
      - parking to wait for <0x0000000526660bf8> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
      at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
      at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
      at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
      at org.mariadb.jdbc.MariaDbStatement.executeInternal(MariaDbStatement.java:340)
      at org.mariadb.jdbc.MariaDbStatement.execute(MariaDbStatement.java:501)
      at org.apache.tomcat.jdbc.pool.PooledConnection.validate(PooledConnection.java:583)
      at org.apache.tomcat.jdbc.pool.PooledConnection.validate(PooledConnection.java:485)
      at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:832)
      at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:674)
      at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:198)
      at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:136)
      at com.appiancorp.rdbms.datasource.BusinessDataSourceConnectionProvider.getConnection(BusinessDataSourceConnectionProvider.java:63)
      at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
      at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
      at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)
      at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)
      

      The current theory is that during previous use of this connection, something went wrong which caused the connection to be returned to the pool without unlocking the lock.

      Attachments

        Activity

          People

            diego dupin Diego Dupin
            valerii Valerii Kravchuk
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Git Integration

                Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.