查看mongodb 当前任务
mongos> db.currentOp()
{
"inprog" : [
{
"opid" : "shard0000:34451622",
"active" : true,
"secs_running" : 3,
"op" : "query",
"ns" : "km_mongodb.tmp.mr.snapshot_7_5580_inc",
"query" : {
"$msg" : "query not recording (too large)"
},
"client_s" : "202.173.9.57:50759",
"desc" : "conn104",
"threadId" : "0x43dbb940",
"connectionId" : 104,
"waitingForLock" : false,
"msg" : "m/r: (1/3) emit phase 6399/13980 45%", ---->进行mapreduce 汇总
"progress" : {
"done" : 6399,
"total" : 13980
},
"numYields" : 66,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(6332397),
"w" : NumberLong(61853)
},
"timeAcquiringMicros" : {
"r" : NumberLong(3171439),
"w" : NumberLong(3293)
}
}
}
]
}
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