Cassandra
  1. Cassandra
  2. CASSANDRA-1093

BinaryMemtable interface silently dropping data.

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Minor Minor
    • Resolution: Fixed
    • Fix Version/s: 0.6.4
    • Component/s: Core
    • Labels:
      None
    • Environment:

      Linux Centos5, Fedora Core 4. Java HotSpot Server 1.6.0_14. See readme for more details.

      Description

      I've been attempting to use the Binary Memtable (BMT) interface to load a large number of rows. During my testing, I discovered that on larger loads (~1 million rows), occasionally some of the data never appears in the database. This happens in a non-deterministic manner, as sometimes all the data loads fine, and other times a significant chunk goes missing. No errors are ever logged to indicate a problem. I'm attaching some sample code that approximates my application's usage of Cassandra and explains this bug in more detail.

      1. 1093.txt
        3 kB
        Jonathan Ellis
      2. cassandra_bmt_test.tar.gz
        11 kB
        Toby Jungen

        Activity

        Toby Jungen created issue -
        Toby Jungen made changes -
        Field Original Value New Value
        Attachment cassandra_bmt_test.tar.gz [ 12444527 ]
        Jonathan Ellis made changes -
        Fix Version/s 0.6.2 [ 12314931 ]
        Affects Version/s 0.6.1 [ 12314867 ]
        Jonathan Ellis made changes -
        Fix Version/s 0.6.3 [ 12315056 ]
        Fix Version/s 0.6.2 [ 12314931 ]
        Jonathan Ellis made changes -
        Assignee Brandon Williams [ brandon.williams ]
        Brandon Williams made changes -
        Status Open [ 1 ] Resolved [ 5 ]
        Resolution Cannot Reproduce [ 5 ]
        Jonathan Ellis made changes -
        Resolution Cannot Reproduce [ 5 ]
        Status Resolved [ 5 ] Reopened [ 4 ]
        Assignee Brandon Williams [ brandon.williams ] Jonathan Ellis [ jbellis ]
        Jonathan Ellis made changes -
        Fix Version/s 0.6.4 [ 12315173 ]
        Fix Version/s 0.6.3 [ 12315056 ]
        Priority Major [ 3 ] Minor [ 4 ]
        Jonathan Ellis made changes -
        Attachment 1093.txt [ 12449452 ]
        Jonathan Ellis made changes -
        Status Reopened [ 4 ] Patch Available [ 10002 ]
        Jonathan Ellis made changes -
        Status Patch Available [ 10002 ] Resolved [ 5 ]
        Resolution Fixed [ 1 ]
        Gavin made changes -
        Workflow no-reopen-closed, patch-avail [ 12510923 ] patch-available, re-open possible [ 12752257 ]
        Gavin made changes -
        Workflow patch-available, re-open possible [ 12752257 ] reopen-resolved, no closed status, patch-avail, testing [ 12758217 ]

          People

          • Assignee:
            Jonathan Ellis
            Reporter:
            Toby Jungen
          • Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development