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#!/bin/bash | |
#This will lead to the script stopping when the first command fails. | |
set -eux | |
# Cassandra snapshot to S3 | |
# author: [email protected] | |
# date: 19.01.2016 | |
# updated: 21.01.2016 | |
TODAYS_DATE=`date "+%d%m%Y"` | |
PATH_TO_CASSANDRA_DATA="/var/lib/cassandra/data" | |
PATH_TO_TEMPORAL_DIRECTORY="/tmp/cassandra_snapshots" | |
#remove old snapshot | |
clearSnapshot() { | |
nodetool clearsnapshot | |
if [ "$(ls -A ${PATH_TO_TEMPORAL_DIRECTORY}/)" ]; then | |
echo "Not Empty" | |
rm -r --preserve-root ${PATH_TO_TEMPORAL_DIRECTORY}/* | |
else | |
echo "Empty" | |
fi | |
} | |
#create backup | |
takeSnapshot() { | |
clearSnapshot | |
nodetool snapshot -t backup_$TODAYS_DATE keyspace | |
_SNAPSHOT_DIR_LIST=`find $PATH_TO_CASSANDRA_DATA -type d -name snapshots|awk '{gsub("'$PATH_TO_CASSANDRA_DATA'", "");print}' > snapshot_dir_list` | |
for i in `cat snapshot_dir_list` | |
do | |
if [ -d $PATH_TO_TEMPORAL_DIRECTORY/$i ] | |
then | |
echo "$i directory exist" | |
else | |
mkdir -p $PATH_TO_TEMPORAL_DIRECTORY/$i | |
fi | |
done | |
for SNP_VAR in `find $PATH_TO_CASSANDRA_DATA -name "backup_$TODAYS_DATE"`; do | |
## Triming _DATA_DIR | |
_SNP_PATH_TRIM=`echo $SNP_VAR|awk '{gsub("'$PATH_TO_CASSANDRA_DATA'", "");print}'` | |
mv -v "$SNP_VAR" "$PATH_TO_TEMPORAL_DIRECTORY/$_SNP_PATH_TRIM"; | |
done | |
#Compress the backup directory | |
tar -cvzf ${PATH_TO_TEMPORAL_DIRECTORY}/backup_$TODAYS_DATE.tar.gz ${PATH_TO_TEMPORAL_DIRECTORY}/keyspace | |
copySnapshotToS3 | |
backupSucceeded | |
clearSnapshot | |
} | |
copySnapshotToS3() { | |
s3cmd sync ${PATH_TO_TEMPORAL_DIRECTORY}/backup_$TODAYS_DATE.tar.gz s3://node_name | |
} | |
backupSucceeded() { | |
wget --spider --no-check-certificate url | |
} | |
takeSnapshot |
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