MongoDB cloning (db.copyDatabase), clone only half of database -

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i have database have 4 gb data , when try dump mongodump dump 1,93 gb. , when try clone db.copydatabase() copy same amount of data mongodump.

is there limit in mongodb?

thanks , sorry bad english (i hope understand me).

edit

{         "ns" : "some-db.persons",         "firstextent" : "0:31000 ns:some-db.persons",         "lastextent" : "4:b50d000 ns:some-db.persons",         "extentcount" : 13,         "extents" : [                 {                         "loc" : "0:31000",                         "xnext" : "0:42000",                         "xprev" : "null",                         "nsdiag" : "some-db.persons",                         "size" : 32768,                         "firstrecord" : "0:310b0",                         "lastrecord" : "0:38e3c"                 },                 {                         "loc" : "0:42000",                         "xnext" : "0:62000",                         "xprev" : "0:31000",                         "nsdiag" : "some-db.persons",                         "size" : 131072,                         "firstrecord" : "0:420b0",                         "lastrecord" : "0:61e64"                 },                 {                         "loc" : "0:62000",                         "xnext" : "0:e2000",                         "xprev" : "0:42000",                         "nsdiag" : "some-db.persons",                         "size" : 524288,                         "firstrecord" : "0:620b0",                         "lastrecord" : "0:e0f0c"                 },                 {                         "loc" : "0:e2000",                         "xnext" : "0:372000",                         "xprev" : "0:62000",                         "nsdiag" : "some-db.persons",                         "size" : 2097152,                         "firstrecord" : "0:e20b0",                         "lastrecord" : "0:2e1d94"                 },                 {                         "loc" : "0:372000",                         "xnext" : "0:dd6000",                         "xprev" : "0:e2000",                         "nsdiag" : "some-db.persons",                         "size" : 8388608,                         "firstrecord" : "0:3720b0",                         "lastrecord" : "0:b71e80"                 },                 {                         "loc" : "0:dd6000",                         "xnext" : "0:2233000",                         "xprev" : "0:372000",                         "nsdiag" : "some-db.persons",                         "size" : 11325440,                         "firstrecord" : "0:dd60b0",                         "lastrecord" : "0:18a2db8"                 },                 {                         "loc" : "0:2233000",                         "xnext" : "1:2000",                         "xprev" : "0:dd6000",                         "nsdiag" : "some-db.persons",                         "size" : 15290368,                         "firstrecord" : "0:22330b0",                         "lastrecord" : "0:30c7e20"                 },                 {                         "loc" : "1:2000",                         "xnext" : "1:223d000",                         "xprev" : "0:2233000",                         "nsdiag" : "some-db.persons",                         "size" : 20643840,                         "firstrecord" : "1:20b0",                         "lastrecord" : "1:13b1e9c"                 },                 {                         "loc" : "1:223d000",                         "xnext" : "2:2000",                         "xprev" : "1:2000",                         "nsdiag" : "some-db.persons",                         "size" : 27869184,                         "firstrecord" : "1:223d0b0",                         "lastrecord" : "1:3cd0e7c"                 },                 {                         "loc" : "2:2000",                         "xnext" : "2:73ba000",                         "xprev" : "1:223d000",                         "nsdiag" : "some-db.persons",                         "size" : 37625856,                         "firstrecord" : "2:20b0",                         "lastrecord" : "2:23e3dd8"                 },                 {                         "loc" : "2:73ba000",                         "xnext" : "3:4bd7000",                         "xprev" : "2:2000",                         "nsdiag" : "some-db.persons",                         "size" : 50798592,                         "firstrecord" : "2:73ba0b0",                         "lastrecord" : "2:a42be78"                 },                 {                         "loc" : "3:4bd7000",                         "xnext" : "4:b50d000",                         "xprev" : "2:73ba000",                         "nsdiag" : "some-db.persons",                         "size" : 68579328,                         "firstrecord" : "3:4bd70b0",                         "lastrecord" : "3:8d3dda4"                 },                 {                         "loc" : "4:b50d000",                         "xnext" : "null",                         "xprev" : "3:4bd7000",                         "nsdiag" : "some-db.persons",                         "size" : 92581888,                         "firstrecord" : "4:b50d0b0",                         "lastrecord" : "4:ba17118"                 }         ],         "datasize" : 244286608,         "nrecords" : 268872,         "lastextentsize" : 92581888,         "padding" : 1,         "firstextentdetails" : {                 "loc" : "0:31000",                 "xnext" : "0:42000",                 "xprev" : "null",                 "nsdiag" : "some-db.persons",                 "size" : 32768,                 "firstrecord" : "0:310b0",                 "lastrecord" : "0:38e3c"         },         "lastextentdetails" : {                 "loc" : "4:b50d000",                 "xnext" : "null",                 "xprev" : "3:4bd7000",                 "nsdiag" : "some-db.persons",                 "size" : 92581888,                 "firstrecord" : "4:b50d0b0",                 "lastrecord" : "4:ba17118"         },         "objectsfound" : 218678,         "invalidobjects" : 0,         "byteswithheaders" : 207046812,         "byteswithoutheaders" : 203547964,         "deletedcount" : 6,         "deletedsize" : 87297536,         "nindexes" : 1,         "keysperindex" : {                 "some-db.persons.$_id_" : 268872         },         "valid" : true,         "errors" : [ ],         "ok" : 1 }

the data's there; mongodb allocates space on time wouldn't included in copy. check doc counts in collections verify.


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