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Exercise caution while editing /usr/local/omk/conf/opCommon.nmis; if a syntax error is induced all OMK applications will cease to function.

  • ABI 1 (NMIS 8)
    • In omk/conf/opCommon.nmis, omkd_workers is set at 10. Try reducing this number to 5 and then restart the omkd service.
      If you THEN find YOU need more omkd_workers, increment this value by one and test again until you get to a suitable value for omkd_workers
  • ABI 2 (NMIS 9)
    • In omk/conf/opCommon.json, omkd_workers is set at 10. Try reducing this number to 5 and then restart the omkd service.
      If you THEN find YOU need more omkd_workers, increment this value by one and test again until you get to a suitable value for omkd_workers
  • The default MongoDB table type is wiredtiger.
    If your MongoDB installation is using table type wiredtiger, please read
    https://docs.mongodb.com/manual/reference/configuration-options/#storage.wiredTiger.engineConfig.cacheSizeGB
    • Consider setting cacheSizeGB appropriately taking into consideration the memory requirements of other processes running on this box.
      With default mongod settings, a box with 16GB memory may use more than 7GB of memory for cacheSizeGB.
      This may be too much considering the box may be running NMIS and OMK Applications too.
      • You can check how much memory mongod is using for this cache in the mongod.log where it is provided in MB, for example:
        • STORAGE [initandlisten] wiredtiger_open config: create,cache_size=7414M,


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