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Add divide by zero check (#191)

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On several servers (Ubuntu 18.04) DEMAND_DATA_TOTAL is 0 currently and is causing an error

Traceback (most recent call last):
  File "/usr/local/bin/zfs-linux", line 178, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/usr/local/bin/zfs-linux", line 76, in main
    DATA_DEMAND_PERCENT = DEMAND_DATA_HITS / DEMAND_DATA_TOTAL * 100
ZeroDivisionError: division by zero
This commit is contained in:
Félim Whiteley
2018-10-23 17:46:54 +01:00
committed by Tony Murray
parent 381cc2466a
commit d49fe954df
1 changed files with 1 additions and 1 deletions
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snmp/zfs-linux
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@@ -73,7 +73,7 @@ def main(args):
CACHE_HIT_PERCENT = ARC_HITS / ARC_ACCESSES_TOTAL * 100
CACHE_MISS_PERCENT = ARC_MISSES / ARC_ACCESSES_TOTAL * 100
ACTUAL_HIT_PERCENT = REAL_HITS / ARC_ACCESSES_TOTAL * 100
DATA_DEMAND_PERCENT = DEMAND_DATA_HITS / DEMAND_DATA_TOTAL * 100
DATA_DEMAND_PERCENT = DEMAND_DATA_HITS / DEMAND_DATA_TOTAL * 100 if DEMAND_DATA_TOTAL != 0 else 0
DATA_PREFETCH_PERCENT = PREFETCH_DATA_HITS / PREFETCH_DATA_TOTAL * 100 if PREFETCH_DATA_TOTAL != 0 else 0