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  • mongo 统计数据磁盘消耗


    repl_test:PRIMARY> show dbs
    admin 0.000GB
    direct_vote_resource 16.474GB
    local 14.860GB
    personas 30.771GB
    recommendation 0.370GB
    statistics_visit 0.137GB
    superpub 74.930GB
    test 0.000GB
    repl_test:PRIMARY> show collections
    ask
    dislike_answer
    keyword
    keyword_article
    search
    similar_keyword
    system.profile
    repl_test:PRIMARY> show dbs
    admin 0.000GB
    direct_vote_resource 16.474GB
    local 14.860GB
    personas 30.771GB
    recommendation 0.370GB
    statistics_visit 0.137GB
    superpub 74.930GB
    test 0.000GB
    repl_test:PRIMARY> use superpub
    switched to db superpub
    repl_test:PRIMARY> db.stats()
    {
    "db" : "superpub",
    "collections" : 7,
    "views" : 0,
    "objects" : 138450529,
    "avgObjSize" : 805.375222546098,
    "dataSize" : 111504625605,
    "storageSize" : 76016295936,
    "numExtents" : 0,
    "indexes" : 9,
    "indexSize" : 4438929408,
    "ok" : 1
    }
    repl_test:PRIMARY> show collections
    ask
    dislike_answer
    keyword
    keyword_article
    search
    similar_keyword
    repl_test:PRIMARY> db.ask.stats()
    {
    "ns" : "superpub.ask",
    "size" : 55668031247,
    "count" : 123737786,
    "avgObjSize" : 449,
    "storageSize" : 40328667136,
    "capped" : false,
    "wiredTiger" : {
    "metadata" : {
    "formatVersion" : 1
    },
    "creationString" : "allocation_size=4KB,app_metadata=(formatVersion=1),block_allocation=best,block_compressor=snappy,cache_resident=false,check sum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memor y_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_ma x=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_cou nt=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_max=15,merge_min=0),memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,pre fix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u",
    "type" : "file",
    "uri" : "statistics:table:superpub/collection-43--7896506117540609160",
    "LSM" : {
    "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,
    "bloom filters in the LSM tree" : 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 checkpoint throttle" : 0,
    "sleep for LSM merge throttle" : 0,
    "total size of bloom filters" : 0
    },
    "block-manager" : {
    "allocations requiring file extension" : 2055602,
    "blocks allocated" : 444306014,
    "blocks freed" : 441738573,
    "checkpoint size" : 40100261888,
    "file allocation unit size" : 4096,
    "file bytes available for reuse" : 227958784,
    "file magic number" : 120897,
    "file major version number" : 1,
    "file size in bytes" : 40328667136,
    "minor version number" : 0
    },
    "btree" : {
    "btree checkpoint generation" : 415373,
    "column-store fixed-size leaf pages" : 0,
    "column-store internal pages" : 0,
    "column-store variable-size RLE encoded values" : 0,
    "column-store variable-size deleted values" : 0,
    "column-store variable-size leaf pages" : 0,
    "fixed-record size" : 0,
    "maximum internal page key size" : 368,
    "maximum internal page size" : 4096,
    "maximum leaf page key size" : 2867,
    "maximum leaf page size" : 32768,
    "maximum leaf page value size" : 67108864,
    "maximum tree depth" : 5,
    "number of key/value pairs" : 0,
    "overflow pages" : 0,
    "pages rewritten by compaction" : 0,
    "row-store internal pages" : 0,
    "row-store leaf pages" : 0
    },
    "cache" : {
    "bytes currently in the cache" : 4242679646,
    "bytes read into cache" : NumberLong("10849251618609"),
    "bytes written from cache" : NumberLong("7496783039703"),
    "checkpoint blocked page eviction" : 1871,
    "data source pages selected for eviction unable to be evicted" : 173202308,
    "hazard pointer blocked page eviction" : 178968,
    "in-memory page passed criteria to be split" : 5479,
    "in-memory page splits" : 2819,
    "internal pages evicted" : 96163630,
    "internal pages split during eviction" : 103,
    "leaf pages split during eviction" : 84332,
    "modified pages evicted" : 287629066,
    "overflow pages read into cache" : 0,
    "overflow values cached in memory" : 0,
    "page split during eviction deepened the tree" : 2,
    "page written requiring lookaside records" : 0,
    "pages read into cache" : 471385011,
    "pages read into cache requiring lookaside entries" : 0,
    "pages requested from the cache" : 6178915515,
    "pages written from cache" : 443947737,
    "pages written requiring in-memory restoration" : 34825,
    "unmodified pages evicted" : 194478738
    },
    "cache_walk" : {
    "Average difference between current eviction generation when the page was last considered" : 0,
    "Average on-disk page image size seen" : 0,
    "Clean pages currently in cache" : 0,
    "Current eviction generation" : 0,
    "Dirty pages currently in cache" : 0,
    "Entries in the root page" : 0,
    "Internal pages currently in cache" : 0,
    "Leaf pages currently in cache" : 0,
    "Maximum difference between current eviction generation when the page was last considered" : 0,
    "Maximum page size seen" : 0,
    "Minimum on-disk page image size seen" : 0,
    "On-disk page image sizes smaller than a single allocation unit" : 0,
    "Pages created in memory and never written" : 0,
    "Pages currently queued for eviction" : 0,
    "Pages that could not be queued for eviction" : 0,
    "Refs skipped during cache traversal" : 0,
    "Size of the root page" : 0,
    "Total number of pages currently in cache" : 0
    },
    "compression" : {
    "compressed pages read" : 375167175,
    "compressed pages written" : 249691604,
    "page written failed to compress" : 22200,
    "page written was too small to compress" : 194230451,
    "raw compression call failed, additional data available" : 0,
    "raw compression call failed, no additional data available" : 0,
    "raw compression call succeeded" : 0
    },
    "cursor" : {
    "bulk-loaded cursor-insert calls" : 0,
    "create calls" : 40327,
    "cursor-insert key and value bytes inserted" : 290910538024,
    "cursor-remove key bytes removed" : 0,
    "cursor-update value bytes updated" : 0,
    "insert calls" : 550131283,
    "next calls" : 330490533,
    "prev calls" : 2,
    "remove calls" : 0,
    "reset calls" : 2829414283,
    "restarted searches" : 13608,
    "search calls" : 1925712358,
    "search near calls" : 2595415,
    "truncate calls" : 0,
    "update calls" : 0
    },
    "reconciliation" : {
    "dictionary matches" : 0,
    "fast-path pages deleted" : 0,
    "internal page key bytes discarded using suffix compression" : 28984299,
    "internal page multi-block writes" : 198521,
    "internal-page overflow keys" : 0,
    "leaf page key bytes discarded using prefix compression" : 0,
    "leaf page multi-block writes" : 183103,
    "leaf-page overflow keys" : 0,
    "maximum blocks required for a page" : 39,
    "overflow values written" : 0,
    "page checksum matches" : 5018955,
    "page reconciliation calls" : 440591616,
    "page reconciliation calls for eviction" : 11004390,
    "pages deleted" : 37
    },
    "session" : {
    "object compaction" : 0,
    "open cursor count" : 183
    },
    "transaction" : {
    "update conflicts" : 1123630
    }
    },
    "nindexes" : 2,
    "totalIndexSize" : 4289966080,
    "indexSizes" : {
    "_id_" : 1225650176,
    "md5_1" : 3064315904
    },
    "ok" : 1
    }

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  • 原文地址:https://www.cnblogs.com/rsapaper/p/10000216.html
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