vendredi 5 octobre 2018
[Ubuntu] Fixed issue for mlocate by building it from sources
Par david techer, vendredi 5 octobre 2018 à 11:59 :: Ubuntu
Whatever you Ubuntu version is, one day you might meet some issues with
mlocate/updatedb.mlocate.
- huge I/O on disk
- OOMkiller will kill it
- and so on
I found a recent mlocate version with instruction to build it. So let give it a try! We will build it first
It is listed in my daily crontab (file = /etc/cron.daily/mlocate )
I found a PKGBUILD from https://gitea.artixlinux.org/artix/packages/src/branch/master/mlocate/trunk/PKGBUILD and wanted to give it a try
Translating its content to my own needs, I didexport srcdir=$PWD/mlocate-build # Create some folder to download sources mkdir mlocate-build && cd $srcdir git clone https://pagure.io/mlocate.git && cd mlocate/ && git checkout c98bf6595703456558a6f9c163c746cdaa9e591f cd $srcdir git clone git://git.savannah.gnu.org/gnulib.git && cd gnulib/ && git checkout 5861339993f3014cfad1b94fc7fe366fc2573598 cd $srcdir/mlocate #sed -i '/^groupname /s/mlocate/locate/' Makefile.am # I will not run this one because mlocate group exists on my computer. No need to replace it with a new group ../gnulib/gnulib-tool --import autoreconf --install # Configure ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var/lib # Build make # Time to prepare package make DESTDIR=/tmp/mlocate-build install # 111 = Group ID for mlocate group on my PC chgrp 111 /tmp/mlocate-build/usr/bin/locate chmod 2755 /tmp/mlocate-build/usr/bin/locate # Create a symbolic link ln -s /tmp/mlocate-build/usr/bin/updatedb /tmp/mlocate-build/usr/bin/updatedb.mlocate
Test it before installing it
- As a simple user -- from a terminal session -- , write some random file
echo "hello world" > /TMP_MinGW32/sources/Nabilla.txt
- As root -- from a terminal session --, launch it and monitoring it. Below command is taken from
/etc/cron.daily/mlocateon my computerflock --nonblock /run/mlocate.daily.lock /usr/bin/ionice -c3 /tmp/mlocate-build/usr/bin/updatedb
Important: Stay in front of your computer, open your monitoring tool to check: CPU, I/O, RAM and so on. This is important to check that consumption is low!!! On my computer it took 3 minutes to refresh database/var/lib/mlocate/mlocate.db - Query locate to see if it can find your new file
/tmp/mlocate-build/usr/bin/locate Nabilla
. It returned my new random file as expected. (/TMP_MinGW32/sources/Nabilla.txt)
rm -vf /tmp/mlocate-build/usr/bin/updatedb.mlocate
Install it!
-
First we need to destroy the symbolic link
/usr/bin/updatedb -> /etc/alternatives/updatedb. We just need to delete the symbolic linkrm -vf /usr/bin/updatedb
- Time to copy our binaries
cp -avf /tmp/mlocate-build/usr/* /usr/
- Let's create the new link
ln -s /usr/bin/updatedb /usr/bin/updatedb.mlocate
- We just need to add some rights
chgrp 111 /usr/bin/locate chmod 2755 /usr/bin/locate
MPV Player 0.29.1 was released with some bug fixes. You can download my own version for Windows 32
