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authorAkansha Dua <akansha.dua@amdocs.com>2019-09-04 13:36:12 +0000
committerAkansha Dua <akansha.dua@amdocs.com>2019-09-04 13:36:29 +0000
commit7b6e19817d1e72bcaf06f64cfaf36a8b45b9d19b (patch)
tree3385b70091480b808a03f0eddaef858b1fa3a374 /kubernetes/common/cassandra/resources/restore.sh
parentab390f6776da98113877f8142920ef1c91ad8b34 (diff)
backup charts for cassandra
Issue-ID: OOM-2089 Signed-off-by: Akansha Dua <akansha.dua@amdocs.com> Change-Id: Ia1086deda37ba6e613afcc6bd064e7bf4ee692b9
Diffstat (limited to 'kubernetes/common/cassandra/resources/restore.sh')
-rw-r--r--kubernetes/common/cassandra/resources/restore.sh119
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