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
}