Yetsrday we updated our mongo servers to version 2.2 and fron this time in logs I see
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
Fri Sep 28 13:12:06 [conn6923] queryModified: { _id: HIDE_ID }
So, I see one such string per every findAndModify command. Is it normal state on mongo v 2.2? for what we have this output in log?