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  1. Core Server
  2. SERVER-27903

Out of memory (mogodb) with WiredTiger

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • None
    • 3.2.0
    • WiredTiger
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      ==================================

      engineConfig:
                  cacheSizeGB: 6
                  journalCompressor: zlib
              collectionConfig:
                  blockCompressor: zlib
              indexConfig:
                  prefixCompression: true
      

      ========================

      {
              "tracked dirty bytes in the cache" : 747865945,
              "tracked bytes belonging to internal pages in the cache" : 57440243,
              "bytes currently in the cache" : 5153539327,
              "tracked bytes belonging to leaf pages in the cache" : 5096099084,
              "maximum bytes configured" : 6442450944,
              "tracked bytes belonging to overflow pages in the cache" : 0,
              "bytes read into cache" : 156686381017,
              "bytes written from cache" : 188905355048,
              "pages evicted by application threads" : 0,
              "checkpoint blocked page eviction" : 1013,
              "unmodified pages evicted" : 144545,
              "page split during eviction deepened the tree" : 0,
              "modified pages evicted" : 12889650,
              "pages selected for eviction unable to be evicted" : 334417,
              "pages evicted because they exceeded the in-memory maximum" : 0,
              "pages evicted because they had chains of deleted items" : 136,
              "failed eviction of pages that exceeded the in-memory maximum" : 69,
              "hazard pointer blocked page eviction" : 18872,
              "internal pages evicted" : 231729,
              "maximum page size at eviction" : 8388808,
              "eviction server candidate queue empty when topping up" : 59348,
              "eviction server candidate queue not empty when topping up" : 610688,
              "eviction server evicting pages" : 0,
              "eviction server populating queue, but not evicting pages" : 670035,
              "eviction server unable to reach eviction goal" : 0,
              "internal pages split during eviction" : 1,
              "leaf pages split during eviction" : 50675,
              "pages walked for eviction" : 20848176968,
              "eviction worker thread evicting pages" : 13368457,
              "in-memory page splits" : 126,
              "in-memory page passed criteria to be split" : 333,
              "lookaside table insert calls" : 0,
              "lookaside table remove calls" : 0,
              "percentage overhead" : 8,
              "tracked dirty pages in the cache" : 15513,
              "pages currently held in the cache" : 120186,
              "pages read into cache" : 13154136,
              "pages read into cache requiring lookaside entries" : 0,
              "pages written from cache" : 15897182,
              "page written requiring lookaside records" : 0,
              "pages written requiring in-memory restoration" : 0
      }
      

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      ================================== engineConfig: cacheSizeGB: 6 journalCompressor: zlib collectionConfig: blockCompressor: zlib indexConfig: prefixCompression: true ======================== { "tracked dirty bytes in the cache" : 747865945, "tracked bytes belonging to internal pages in the cache" : 57440243, "bytes currently in the cache" : 5153539327, "tracked bytes belonging to leaf pages in the cache" : 5096099084, "maximum bytes configured" : 6442450944, "tracked bytes belonging to overflow pages in the cache" : 0, "bytes read into cache" : 156686381017, "bytes written from cache" : 188905355048, "pages evicted by application threads" : 0, "checkpoint blocked page eviction" : 1013, "unmodified pages evicted" : 144545, "page split during eviction deepened the tree" : 0, "modified pages evicted" : 12889650, "pages selected for eviction unable to be evicted" : 334417, "pages evicted because they exceeded the in-memory maximum" : 0, "pages evicted because they had chains of deleted items" : 136, "failed eviction of pages that exceeded the in-memory maximum" : 69, "hazard pointer blocked page eviction" : 18872, "internal pages evicted" : 231729, "maximum page size at eviction" : 8388808, "eviction server candidate queue empty when topping up" : 59348, "eviction server candidate queue not empty when topping up" : 610688, "eviction server evicting pages" : 0, "eviction server populating queue, but not evicting pages" : 670035, "eviction server unable to reach eviction goal" : 0, "internal pages split during eviction" : 1, "leaf pages split during eviction" : 50675, "pages walked for eviction" : 20848176968, "eviction worker thread evicting pages" : 13368457, "in-memory page splits" : 126, "in-memory page passed criteria to be split" : 333, "lookaside table insert calls" : 0, "lookaside table remove calls" : 0, "percentage overhead" : 8, "tracked dirty pages in the cache" : 15513, "pages currently held in the cache" : 120186, "pages read into cache" : 13154136, "pages read into cache requiring lookaside entries" : 0, "pages written from cache" : 15897182, "page written requiring lookaside records" : 0, "pages written requiring in-memory restoration" : 0 }

    Description

      hello
      I have problem about WiredTiger , I found the Out of memory on Linux environment (15 GB memory), and Process was killed by OS. Please help me to investigate this case

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            mark.agarunov Mark Agarunov
            kangwanu kangwanu
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              Updated:
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