Uploaded image for project: 'ZABBIX FEATURE REQUESTS'
  1. ZABBIX FEATURE REQUESTS
  2. ZBXNEXT-9718

Not possible to find item that causes value cache excausion

XMLWordPrintable

    • Sprint candidates

      When (probably) some trigger requests too large value for value cache, it can go into low memory mode with no info what caused it:

      224847:20250113:041016.425 === most used items statistics for value cache ===
      224847:20250113:041016.644 itemid:12824194 active range:608381 hits:24060 count:2378 perc:0.004161%
      224847:20250113:041016.644 itemid:7884589 active range:109625 hits:170997 count:1554 perc:0.002719%
      224847:20250113:041016.644 itemid:8196151 active range:87008 hits:129267485 count:1541 perc:0.002697%
      224847:20250113:041016.644 itemid:8074890 active range:86968 hits:130275405 count:1540 perc:0.002695%
      224847:20250113:041016.644 itemid:8746654 active range:87004 hits:130262134 count:1540 perc:0.002695%
      224847:20250113:041016.644 itemid:9670792 active range:86996 hits:130291479 count:1540 perc:0.002695%
      224847:20250113:041016.644 itemid:8675855 active range:87004 hits:130269869 count:1540 perc:0.002695%
      224847:20250113:041016.644 itemid:8030858 active range:87006 hits:130272232 count:1539 perc:0.002693%
      224847:20250113:041016.644 itemid:9669089 active range:87005 hits:130279172 count:1538 perc:0.002691%
      224847:20250113:041016.644 itemid:8541227 active range:86971 hits:130208845 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:8076562 active range:87007 hits:129945229 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:8638730 active range:86980 hits:130179732 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:7788441 active range:86976 hits:130281941 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:7699115 active range:86984 hits:130278389 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:8491064 active range:87007 hits:129677048 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:7439020 active range:86974 hits:130223204 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:7982277 active range:86970 hits:130276287 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:10127216 active range:86976 hits:130282707 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:7917280 active range:87001 hits:129319880 count:1537 perc:0.002690%
      224847:20250113:041016.644 itemid:8088917 active range:86984 hits:130197676 count:1537 perc:0.002690%
      224847:20250113:041016.645 itemid:8506734 active range:86978 hits:130266615 count:1537 perc:0.002690%
      224847:20250113:041016.645 itemid:7595941 active range:87001 hits:130289020 count:1537 perc:0.002690%
      224847:20250113:041016.645 itemid:8020470 active range:86984 hits:130252941 count:1537 perc:0.002690%
      224847:20250113:041016.645 itemid:7845566 active range:87001 hits:130239041 count:1537 perc:0.002690%
      224847:20250113:041016.645 itemid:7380049 active range:86980 hits:130288184 count:1537 perc:0.002690%
      224847:20250113:041016.645 ==================================================
      224847:20250113:041016.799 === memory statistics for value cache size ===
      224847:20250113:041016.799 free chunks of size     24 bytes:     5348
      224847:20250113:041016.799 free chunks of size     32 bytes:    31961
      224847:20250113:041016.799 free chunks of size     40 bytes:    10808
      224847:20250113:041016.799 free chunks of size     48 bytes:    16054
      224847:20250113:041016.799 free chunks of size     56 bytes:     2563
      224847:20250113:041016.799 free chunks of size     64 bytes:        2
      224847:20250113:041016.799 free chunks of size     80 bytes:     1563
      224847:20250113:041016.799 free chunks of size     88 bytes:     2740
      224847:20250113:041016.799 free chunks of size     96 bytes:      109
      224847:20250113:041016.799 free chunks of size    104 bytes:       11
      224847:20250113:041016.799 free chunks of size    112 bytes:       29
      224847:20250113:041016.799 free chunks of size    120 bytes:        8
      224847:20250113:041016.799 free chunks of size    128 bytes:       40
      224847:20250113:041016.800 free chunks of size    136 bytes:       41
      224847:20250113:041016.800 free chunks of size    144 bytes:      778
      224847:20250113:041016.800 free chunks of size    152 bytes:        7
      224847:20250113:041016.800 free chunks of size    160 bytes:      165
      224847:20250113:041016.800 free chunks of size    168 bytes:      232
      224847:20250113:041016.800 free chunks of size    176 bytes:      192
      224847:20250113:041016.800 free chunks of size    184 bytes:       20
      224847:20250113:041016.800 free chunks of size    192 bytes:        8
      224847:20250113:041016.800 free chunks of size    200 bytes:       20
      224847:20250113:041016.800 free chunks of size    208 bytes:      294
      224847:20250113:041016.800 free chunks of size    216 bytes:      129
      224847:20250113:041016.800 free chunks of size    224 bytes:       85
      224847:20250113:041016.800 free chunks of size    232 bytes:      168
      224847:20250113:041016.800 free chunks of size    240 bytes:      338
      224847:20250113:041016.800 free chunks of size    248 bytes:      784
      224847:20250113:041016.800 free chunks of size >= 256 bytes:   608027
      224847:20250113:041016.800 min chunk size:         24 bytes
      224847:20250113:041016.800 max chunk size:     122672 bytes
      224847:20250113:041016.800 memory of total size 2066238368 bytes fragmented into 5077807 chunks
      224847:20250113:041016.800 of those,  947556392 bytes are in   682524 free chunks
      224847:20250113:041016.800 of those, 1118681976 bytes are in  4395283 used chunks
      224847:20250113:041016.800 of those,   81244896 bytes are used by allocation overhead
      224847:20250113:041016.800 ================================
      224847:20250113:041016.800 value cache is fully used: please increase ValueCacheSize configuration parameter
      

      It would be useful to add info what item or trigger caused this.

            zabbix.dev Zabbix Development Team
            zux Edgars Melveris
            Team A
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Created:
              Updated: