Upgrading to 16.10 (yakkety) seems to have resolved this(?).
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Touch seeded packages, which is subscribed to mediascanner2 in Ubuntu.
mediascanner-service-2.0 using large amounts of CPU
Status in mediascanner2 package in Ubuntu:
Each time I plug my external USB hard disk the mediascanner-service process
is activ and is using large amount of CPU for long minutes without interruption.
I have the same problem in utopic and vivid
DistroRelease: Ubuntu 15.04
Package: mediascanner2.0 0.105+15.04.20141030.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
Date: Wed Dec 3 00:29:43 2014
InstallationDate: Installed on 2011-05-26 (1286 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
UpgradeStatus: Upgraded to vivid on 2013-11-26 (371 days ago)
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