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Diffstat (limited to 'kubernetes/common/cassandra/resources/restore.sh')
-rw-r--r-- | kubernetes/common/cassandra/resources/restore.sh | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/kubernetes/common/cassandra/resources/restore.sh b/kubernetes/common/cassandra/resources/restore.sh new file mode 100644 index 0000000000..b9deb32316 --- /dev/null +++ b/kubernetes/common/cassandra/resources/restore.sh @@ -0,0 +1,119 @@ +#!/bin/bash + +# Initialize variables +ss_dir="" +base_db_dir="" +ss_name="" +ss="snapshots" +me=`basename $0` + +function find_target_table_name() +{ + dest_path=$1 + keyspace_name=$2 + src_table_name=$3 + find_in_dir=$dest_path/$keyspace_name + tname_without_uuid=$(echo $src_table_name | cut -d '-' -f 1) + dest_table_name=$(ls -td -- $find_in_dir/$tname_without_uuid-* | head -n 1 | rev | cut -d'/' -f1 | rev) + printf $dest_table_name +} + +function print_usage() +{ + echo "NAME" + echo " Script to restore Cassandra database from Nuvo/Cain snapshot" + echo "SYNOPSIS" + echo " $me [--help|-h] [--base_db_dir|-b] [--snapshot_dir|-s] [--keyspace|-k] [--tag|-t]" + echo " MUST OPTIONS: base_db_dir, snapshot_dir, keyspace_name" + echo "DESCRIPTION" + echo " --base_db_dir, -b" + echo " Location of running Cassandra database" + echo " --snapshot_dir, -s" + echo " Snapshot location of Cassandra database taken by Nuvo/Cain" + echo " --keyspace, -k" + echo " Name of the keyspace to restore" + echo "EXAMPLE" + echo " $me -b /var/lib/cassandra/data -s /root/data.ss -k DISCOVERY_SERVER -t 1234567" + exit +} +if [ $# -eq 0 ] +then + print_usage +fi + +while [[ $# -gt 0 ]] +do +key="$1" +shift + +case $key in + -h|--help) + print_usage + ;; + -b|--base_db_dir) + base_db_dir="$1" + shift + ;; + -s|--snapshot_dir) + ss_dir="$1" + shift + ;; + -k|--keyspace) + keyspace_name="$1" + ;; + -t|--tag) + tag_name="$1" + ;; + --default) + DEFAULT=YES + shift + ;; + *) + # unknown option + ;; +esac +done + +# Validate inputs +if [ "$base_db_dir" == "" ] || [ "$ss_dir" == "" ] || [ "$keyspace_name" == "" ] +then + echo "" + echo ">>>>>>>>>>Not all inputs provided, please check usage >>>>>>>>>>" + echo "" + print_usage +fi + +# Remove commit logs from current data dir +#/var/lib/cassandra/commitlog/CommitLog*.log +find $base_db_dir/../ -name "CommitLog*.log" -delete + +# Remove *.db from current data dir excluding skipped keyspaces +find $base_db_dir/$keyspace_name -name "*.db" -delete + +# Copy snapshots to data dir +echo "----------db files in snapshots--------------" +dirs_to_be_restored=`ls $ss_dir` +for i in ${dirs_to_be_restored} +do + src_path=$ss_dir/$i/snapshots/$tag_name + # Find the destination + table_name=$i + dest_table=$(find_target_table_name $base_db_dir $keyspace_name $table_name) + dest_path=$base_db_dir/$keyspace_name/$dest_table + # Create keyspace/table directory if not exists + #if [ ! -d "$dest_path" ]; then + # mkdir -p $dest_path + #fi + db_files=$(ls $src_path/*.db 2> /dev/null | wc -l) + if [ $db_files -ne 0 ] + then + cp $src_path/*.db $dest_path + if [ $? -ne 0 ] + then + echo "=====ERROR: Unable to restore $src_path/*.db to $dest_path=====" + exit 1 + fi + echo "=======check $dest_path ===============" + ls $dest_path + fi +done |