mandhor · March 22, 2017 08:18 · Jun 8, 2016 · Jun 8, 2016
diff --git a/redis-migrate.sh b/redis-migrate.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+######
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+# TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+######
+
+######
+###	Migrates the keys responding to the pattern specified on the command line, using DUMP/RESTORE, supports authentication differently from MIGRATE
+######
+
+KEYS_MATCHER=$1
+SOURCE_PASSWORD=foobared
+SOURCE_PORT=6379
+SOURCE_SCHEMA=0
+TARGET_PASSWORD=foobared
+TARGET_PORT=6479
+TARGET_SCHEMA=0
+LOG_FILE="redis-migrate.log"
+
+if [[ -z "$KEYS_MATCHER" ]]; then
+	echo -e "Please provide a KEYS matcher, like *~cache"
+	exit 1
+fi
+
+echo "***	Migrating keys matching $KEYS_MATCHER"
+
+redis-cli -a $SOURCE_PASSWORD -p $SOURCE_PORT keys $KEYS_MATCHER | while read key; do
+	# Preparing TTL
+	key_ttl=`redis-cli -a $SOURCE_PASSWORD -p $SOURCE_PORT ttl "$key"`
+	if [[ $key_ttl -lt 1 ]]; then
+		key_ttl=0
+	fi
+
+	echo "Dump/Restore \"$key\", ttl $key_ttl" &>> $LOG_FILE
+
+	key_ttl+="000" # TTL must be in milliseconds when specifying it
+	redis-cli --raw -p $SOURCE_PORT -n $SOURCE_SCHEMA -a $SOURCE_PASSWORD DUMP "$key" | head -c -1 | redis-cli -x -p $TARGET_PORT -n $TARGET_SCHEMA -a $TARGET_PASSWORD RESTORE "$key" $key_ttl &>> $LOG_FILE
+done