[automerger skipped] Subsampling DNS events to reduce logs
am: 57b128d35e -s ours
am skip reason: change_id Ibbe3c653bdf45fc03b56a61e3401fad11c05a010 with SHA1 79e5185780 is in history

Change-Id: I50acb2edec58caec59bdb371e5f916116dbe3fbf