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  1. Core Server
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local.oplog.rs storageSize increase to 140G [mongo version 3.0.2]

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    • Resolution: Works as Designed
    • Icon: Major - P3 Major - P3
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    • Replication, Storage, WiredTiger
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    Description

      my mongo version is 3.0.2,wiredtiger engine; and "oplogSizeMB" set as 10240M, but my local.oplog.rs storageSize is 140G;and valid data only 10G

      db.oplog.rs.stats()
      {
              "ns" : "local.oplog.rs",
              "count" : 7416525,
              "size" : 10737295893,
              "avgObjSize" : 1447,
              "storageSize" : 149559255040,
              "capped" : true,
              "max" : -1,
              "maxSize" : NumberLong("10737418240"),
              "wiredTiger" : {
                      "metadata" : {
                              "formatVersion" : 1,
                              "oplogKeyExtractionVersion" : 1
                      },
                      "creationString" : "allocation_size=4KB,app_metadata=(formatVersion=1,oplogKeyExtractionVersion=1),block_allocation=best,block_compressor=zlib,cache_resident=0,checkpoint=(WiredTigerCheckpoint.874489=(addr=\"01e40136055a81e419d8847fe4022d0326c0e5e4746768cde4022c1493c0ade4a53eb837808080e522d26cffc0e523898cafc0\",order=874489,time=1500253703,size=152631562240,write_gen=67446065)),checkpoint_lsn=(42287,71868672),checksum=uncompressed,collator=,columns=,dictionary=0,format=btree,huffman_key=,huffman_value=,id=9,internal_item_max=0,internal_key_max=0,internal_key_truncate=,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=1MB,memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=0,prefix_compression_min=4,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,value_format=u,version=(major=1,minor=1)",
                      "type" : "file",
                      "uri" : "statistics:table:local/collection/6--5846934347363493562",
                      "LSM" : {
                              "bloom filters in the LSM tree" : 0,
                              "bloom filter false positives" : 0,
                              "bloom filter hits" : 0,
                              "bloom filter misses" : 0,
                              "bloom filter pages evicted from cache" : 0,
                              "bloom filter pages read into cache" : 0,
                              "total size of bloom filters" : 0,
                              "sleep for LSM checkpoint throttle" : 0,
                              "chunks in the LSM tree" : 0,
                              "highest merge generation in the LSM tree" : 0,
                              "queries that could have benefited from a Bloom filter that did not exist" : 0,
                              "sleep for LSM merge throttle" : 0
                      },
                      "block-manager" : {
                              "file allocation unit size" : 4096,
                              "blocks allocated" : 30903430,
                              "checkpoint size" : 152631562240,
                              "allocations requiring file extension" : 1296614,
                              "blocks freed" : 25543549,
                              "file magic number" : 120897,
                              "file major version number" : 1,
                              "minor version number" : 0,
                              "file bytes available for reuse" : 504307712,
                              "file size in bytes" : 149559255040
                      },
                      "btree" : {
                              "btree checkpoint generation" : 429555,
                              "column-store variable-size deleted values" : 0,
                              "column-store fixed-size leaf pages" : 0,
                              "column-store internal pages" : 0,
                              "column-store variable-size leaf pages" : 0,
                              "pages rewritten by compaction" : 0,
                              "number of key/value pairs" : 0,
                              "fixed-record size" : 0,
                              "maximum tree depth" : 4,
                              "maximum internal page key size" : 368,
                              "maximum internal page size" : 4096,
                              "maximum leaf page key size" : 3276,
                              "maximum leaf page size" : 32768,
                              "maximum leaf page value size" : 1048576,
                              "overflow pages" : 0,
                              "row-store internal pages" : 0,
                              "row-store leaf pages" : 0
                      },
                      "cache" : {
                              "bytes read into cache" : NumberLong("3850014232885"),
                              "bytes written from cache" : NumberLong("4027624357716"),
                              "checkpoint blocked page eviction" : 1161085,
                              "unmodified pages evicted" : 8215686,
                              "page split during eviction deepened the tree" : 0,
                              "modified pages evicted" : 22280545,
                              "data source pages selected for eviction unable to be evicted" : 26634717,
                              "hazard pointer blocked page eviction" : 22965569,
                              "internal pages evicted" : 218785,
                              "pages split during eviction" : 4128192,
                              "in-memory page splits" : 1445,
                              "overflow values cached in memory" : 0,
                              "pages read into cache" : 27243649,
                              "overflow pages read into cache" : 1183,
                              "pages written from cache" : 30084968
                      },
                      "compression" : {
                              "raw compression call failed, no additional data available" : 2034106,
                              "raw compression call failed, additional data available" : 210907,
                              "raw compression call succeeded" : 33617030,
                              "compressed pages read" : 26963420,
                              "compressed pages written" : 721249,
                              "page written failed to compress" : 2,
                              "page written was too small to compress" : 767398
                      },
                      "cursor" : {
                              "create calls" : 2499,
                              "insert calls" : 1319355924,
                              "bulk-loaded cursor-insert calls" : 0,
                              "cursor-insert key and value bytes inserted" : NumberLong("2862189380167"),
                              "next calls" : 2678675450,
                              "prev calls" : 57305,
                              "remove calls" : 28541616,
                              "cursor-remove key bytes removed" : 256874544,
                              "reset calls" : 1603760914,
                              "search calls" : 200610980,
                              "search near calls" : 57211446,
                              "update calls" : 0,
                              "cursor-update value bytes updated" : 0
                      },
                      "reconciliation" : {
                              "dictionary matches" : 0,
                              "internal page multi-block writes" : 236028,
                              "leaf page multi-block writes" : 4420086,
                              "maximum blocks required for a page" : 88,
                              "internal-page overflow keys" : 0,
                              "leaf-page overflow keys" : 0,
                              "overflow values written" : 431,
                              "pages deleted" : 9925972,
                              "page checksum matches" : 1968486,
                              "page reconciliation calls" : 25343235,
                              "page reconciliation calls for eviction" : 23052320,
                              "leaf page key bytes discarded using prefix compression" : 0,
                              "internal page key bytes discarded using suffix compression" : 0
                      },
                      "session" : {
                              "object compaction" : 0,
                              "open cursor count" : 2499
                      },
                      "transaction" : {
                              "update conflicts" : 0
                      }
              },
              "nindexes" : 0,
              "totalIndexSize" : 0,
              "indexSizes" : {
       
              },
              "ok" : 1,
              "$gleStats" : {
                      "lastOpTime" : Timestamp(0, 0),
                      "electionId" : ObjectId("57e2f7739c87007ce802ce27")
              }
      }
       
       
      
      

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            mark.agarunov Mark Agarunov
            lijuan lijuan
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              Updated:
              Resolved: