Script that run's when you install RPM Files
Sometimes we need to find specific file or jars belong to which package while troubleshooting and would like to get same package installed on problematic node as well usually "rpm -qf <File-name>" works fine.
Like say i need to find which package in mapr packages mapr fsck utility via below command we get the package name or some jar we see the package where the jar came from.
[root@node1 mapr]# rpm -qf /opt/mapr/server/fsck
mapr-core-internal-4.0.2.29870.GA-1.x86_64
[root@node1 pig-0.14]# rpm -qf pig-0.14.0-mapr-SNAPSHOT.jar
mapr-pig-0.14.201608040131-1.noarch
But now lets take below case where we get pig-core-h2.jar is not owned by any package but we are certain this jar was part of a rpm install yet we don't get rite answer when we query using the file.
[root@node1 pig-0.14]# rpm -qf pig-core-h2.jar
file /opt/mapr/pig/pig-0.14/pig-core-h2.jar is not owned by any package
This is because rpm packages can run scripts after a package is added or removed . How do we view pre/post install and uninstall rpm file scripts (RHEL)?
The option –scripts to rpm command displays the package specific script(s) that are used as part of the installation and uninstallation processes. Use the following command line option to view rpm file scripts for .rpm file.
Example : To list all scripts which will be run as part of "mapr-pig-0.14.201608040131-1.noarch.rpm" install.
[root@node1 pig-0.14]# rpm -qp --scripts /tmp/mapr-pig-0.14.201608040131-1.noarch.rpm
postinstall scriptlet (using /bin/sh):
# this is install
mkdir -p "/opt/mapr/pig/pig-0.14"/conf
diffR=$(diff -r "/opt/mapr/pig/pig-0.14"/conf "/opt/mapr/pig/pig-0.14"/conf.new | grep "^Only in " | grep "conf.new" | sed "s/^Only in //" | sed "s/: /\//")
for i in `echo $diffR`; do
j=$(echo $i | sed 's/conf.new/conf/g')
cp -Rp $i $j
done
ln -sf /opt/mapr/pig/pig-0.14/bin/pig /opt/mapr/bin/
ln -sf /opt/mapr/pig/pig-0.14/bin/pig /usr/bin/pig
#
# single pig jar for post-yarn releases
#
if [ -f /opt/mapr/MapRBuildVersion ]; then
MAPR_VERSION=`cat /opt/mapr/MapRBuildVersion | awk -F "." '{print $1"."$2}'`
#if mapr-core release >=4.0 (yarn beta) returns boolean 1, else returns boolean 0
POST_YARN=`echo | awk -v cur=$MAPR_VERSION -v min=4.0 '{if (cur >= min) printf("1"); else printf ("0");}'`
if [[ $POST_YARN == 0 ]]; then
echo POST_YARN=$POST_YARN, removing yarn jars
rm -f /opt/mapr/pig/pig-0.14/pig-core-h1.jar
mv /opt/mapr/pig/pig-0.14/pig-*-h1.jar /opt/mapr/pig/pig-0.14/pig-core-h1.jar
mv /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h1.jar /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank.jar
rm /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h2.jar
rm /opt/mapr/pig/pig-0.14/pig-*-h2.jar
mv /opt/mapr/pig/pig-0.14/conf/pig.properties.3.x /opt/mapr/pig/pig-0.14/conf/pig.properties
else
# mv *-h2.jar to *.jar
echo POST_YARN=$POST_YARN, replacing MR1 jars
rm -f /opt/mapr/pig/pig-0.14/pig-core-h2.jar
mv /opt/mapr/pig/pig-0.14/pig-*-h2.jar /opt/mapr/pig/pig-0.14/pig-core-h2.jar
mv /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h2.jar /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank.jar
rm /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h1.jar
rm /opt/mapr/pig/pig-0.14/pig-*-h1.jar
rm /opt/mapr/pig/pig-0.14/conf/pig.properties.3.x
fi
fi
#
# change ownership
#
DAEMON_CONF="/opt/mapr/conf/daemon.conf"
if [ -f "$DAEMON_CONF" ]; then
MAPR_USER=$( awk -F = '$1 == "mapr.daemon.user" { print $2 }' $DAEMON_CONF)
if [ ! -z "$MAPR_USER" ]; then
chown -R $MAPR_USER /opt/mapr/pig/pig-0.14
fi
fi
##
## end of post install section
##
preuninstall program: /bin/sh
postuninstall scriptlet (using /bin/sh):
#
# last version is removed
# if package is getting purged remove entire directory
# we may need to remove pig/pig-X/logs
#
if [ "$1" = "0" ]; then
rm -Rf /opt/mapr/pig/pig-0.14/logs
rm -Rf /opt/mapr/pig/pig-0.14/conf
rm -f /opt/mapr/bin/pig
rm -f /usr/bin/pig
fi
##
## end of post uninstall section
##
[root@node1 pig-0.14]#
To view scripts for installed packages, enter:
rpm -q --scripts <Package name>
Example :
[root@node1 pig-0.14]# rpm -qa | grep pig
mapr-pig-0.14.201608040131-1.noarch
[root@node1 pig-0.14]# rpm -q --scripts mapr-pig-0.14.201608040131-1.noarch
postinstall scriptlet (using /bin/sh):
# this is install
mkdir -p "/opt/mapr/pig/pig-0.14"/conf
diffR=$(diff -r "/opt/mapr/pig/pig-0.14"/conf "/opt/mapr/pig/pig-0.14"/conf.new | grep "^Only in " | grep "conf.new" | sed "s/^Only in //" | sed "s/: /\//")
for i in `echo $diffR`; do
j=$(echo $i | sed 's/conf.new/conf/g')
cp -Rp $i $j
done
ln -sf /opt/mapr/pig/pig-0.14/bin/pig /opt/mapr/bin/
ln -sf /opt/mapr/pig/pig-0.14/bin/pig /usr/bin/pig
#
# single pig jar for post-yarn releases
#
if [ -f /opt/mapr/MapRBuildVersion ]; then
MAPR_VERSION=`cat /opt/mapr/MapRBuildVersion | awk -F "." '{print $1"."$2}'`
#if mapr-core release >=4.0 (yarn beta) returns boolean 1, else returns boolean 0
POST_YARN=`echo | awk -v cur=$MAPR_VERSION -v min=4.0 '{if (cur >= min) printf("1"); else printf ("0");}'`
if [[ $POST_YARN == 0 ]]; then
echo POST_YARN=$POST_YARN, removing yarn jars
rm -f /opt/mapr/pig/pig-0.14/pig-core-h1.jar
mv /opt/mapr/pig/pig-0.14/pig-*-h1.jar /opt/mapr/pig/pig-0.14/pig-core-h1.jar
mv /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h1.jar /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank.jar
rm /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h2.jar
rm /opt/mapr/pig/pig-0.14/pig-*-h2.jar
mv /opt/mapr/pig/pig-0.14/conf/pig.properties.3.x /opt/mapr/pig/pig-0.14/conf/pig.properties
else
# mv *-h2.jar to *.jar
echo POST_YARN=$POST_YARN, replacing MR1 jars
rm -f /opt/mapr/pig/pig-0.14/pig-core-h2.jar
mv /opt/mapr/pig/pig-0.14/pig-*-h2.jar /opt/mapr/pig/pig-0.14/pig-core-h2.jar
mv /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h2.jar /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank.jar
rm /opt/mapr/pig/pig-0.14/contrib/piggybank/java/piggybank-h1.jar
rm /opt/mapr/pig/pig-0.14/pig-*-h1.jar
rm /opt/mapr/pig/pig-0.14/conf/pig.properties.3.x
fi
fi
#
# change ownership
#
DAEMON_CONF="/opt/mapr/conf/daemon.conf"
if [ -f "$DAEMON_CONF" ]; then
MAPR_USER=$( awk -F = '$1 == "mapr.daemon.user" { print $2 }' $DAEMON_CONF)
if [ ! -z "$MAPR_USER" ]; then
chown -R $MAPR_USER /opt/mapr/pig/pig-0.14
fi
fi
##
## end of post install section
##
preuninstall program: /bin/sh
postuninstall scriptlet (using /bin/sh):
#
# last version is removed
# if package is getting purged remove entire directory
# we may need to remove pig/pig-X/logs
#
if [ "$1" = "0" ]; then
rm -Rf /opt/mapr/pig/pig-0.14/logs
rm -Rf /opt/mapr/pig/pig-0.14/conf
rm -f /opt/mapr/bin/pig
rm -f /usr/bin/pig
fi
##
## end of post uninstall section
##
[root@node1 pig-0.14]#
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