Hi , I have many open fd by mongod process.
lsof | grep mongod | grep "/disk2/mongodb_account/" |wc -l
66045
Over time, number fd is growing to 250k - 300k.
lsof | grep mongo | grep "disk2" | grep "/63--6528694272700620922.wt" | wc -l
111
mongod open file 63--6528694272700620922.wt 111 times .
what caused this behavior?

I use WT engine and 3.0.6 version.