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  1. WiredTiger
  2. WT-823

new merge code divide by 0 fault

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    • Task
    • Status: Closed
    • Resolution: Fixed
    • None
    • WT2.1
    • None
    • None

    Description

      agorrod @michaelcahill
      Today I pulled the latest develop and ran riak. I restarted it without removing the previous database. It immediately failed taking a divide by zero fault. Here is the (very short) stack:

      163				aggressive = chunk_wait / lsm_tree->merge_min;
      (gdb) bt
      #0  0x00007f543cd84602 in __wt_lsm_merge_worker (vargs=0x7f53d0005620)
          at /home/sue/riak/deps/wterl/c_src/wiredtiger-develop/src/lsm/lsm_worker.c:163
      WT-1  0x00007f5447943c6b in start_thread () from /lib64/libpthread.so.0
      WT-2  0x00007f544748a5ed in clone () from /lib64/libc.so.6
      (gdb) p lsm_tree->merge_min
      $1 = 0
      (gdb) p chunk_wait
      $2 = 0
      

      If I restart riak with a clean database and it recreates them from scratch then I do not hit this error.

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              Unassigned Unassigned
              sue.loverso@mongodb.com Susan LoVerso
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