Uploaded image for project: 'Apache Drill'
  1. Apache Drill
  2. DRILL-5089

Skip initializing all enabled storage plugins for every query

    Details

      Description

      In a query's lifecycle, at attempt is made to initialize each enabled storage plugin, while building the schema tree. This is done regardless of the actual plugins involved within a query.

      Sometimes, when one or more of the enabled storage plugins have issues - either due to misconfiguration or the underlying datasource being slow or being down, the overall query time taken increases drastically. Most likely due the attempt being made to register schemas from a faulty plugin.

      For example, when a jdbc plugin is configured with SQL Server, and at one point the underlying SQL Server db goes down, any Drill query starting to execute at that point and beyond begin to slow down drastically.

      We must skip registering unrelated schemas (& workspaces) for a query.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                cshi Chunhui Shi
                Reporter:
                agirish Abhishek Girish
                Reviewer:
                Arina Ielchiieva
              • Votes:
                1 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: