Accumulo
  1. Accumulo
  2. ACCUMULO-2481

Monitor should still work if HDFS + Zookeeper go away

    Details

    • Type: Bug Bug
    • Status: Reopened
    • Priority: Minor Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.4.4, 1.4.5, 1.5.1, 1.6.0
    • Fix Version/s: 1.6.3, 1.8.0, 1.7.1
    • Component/s: monitor
    • Labels:
      None
    • Environment:

      1.4.5-SNAPSHOT on CDH4.5.0.

      Non-HA cluster with 2 workers and a single Zookeeper server.

      Description

      While preparing to update a test cluster, I accidentally attempted to refresh some monitor pages after I had shut down the underlying HDFS and Zookeeper services. The page simply hung. I've since tried loading several different pages (overview, logs, master view) and all simple hang on the monitor's end. If I restart the underlying cluster, the pages resolve like normal.

      I haven't had a chance to see if this happens on later versions, nor figure out which missing component matters.

      Expected behavior would be for the monitor to still load, albeit with a bunch of alarm bells about everything being off.

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            People

            • Assignee:
              Andrew George Wells
              Reporter:
              Sean Busbey
            • Votes:
              1 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:

                Development