Uploaded image for project: 'Solr'
  1. Solr
  2. SOLR-5954

Slower dataimport process caused by not reusing jdbc connections

Attach filesAttach ScreenshotVotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 4.7.1
    • 4.8, 6.0
    • None

    Description

      Hi,
      SOLR-5734 introduced a regression that causes that the connections used in the dataimport process were closed and reopen in every sql.

      The change to nanoTime in the method getConnection of JdbcDataSource.java forgot to convert the timeout used to reuse the connection.

      The constant CONN_TIME_OUT must be changed to nanos to be compared. (*1000*1000)

      private Connection getConnection() throws Exception {
      long currTime = System.nanoTime();
      if (currTime - connLastUsed > CONN_TIME_OUT)

      {<<<<<<<<<<<<<<< synchronized (this) { Connection tmpConn = factory.call(); closeConnection(); connLastUsed = System.nanoTime(); return conn = tmpConn; }

      } else

      { connLastUsed = currTime; return conn; }

      }

      private static final long CONN_TIME_OUT = 10 * 1000; // 10 seconds

      Regards

      Attachments

        Issue Links

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            markrmiller@gmail.com Mark Miller
            pacoge36 Paco Garcia
            Votes:
            0 Vote for this issue
            Watchers:
            6 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment