On 4/25/2012 11:34 PM, Shubham Srivastava wrote:
Whats the best way(or the only way) to take a cluster wide backup of
Cassandra. Cant find much of the documentation on the same.
I am using a MultiDC setup with cassandra 0.8.6.
Regards,
Shubham
here's how i'm doing in AWS land using the DataStax AMI via a nightly
cron job. you'll need pssh and s3cmd -
#!/bin/bash
cd /home/ec2-user/ops
echo "making snapshots"
pssh -h prod-cassandra-nodes.txt -l ubuntu -P 'nodetool -h localhost -p
7199 clearsnapshot stocktouch'
pssh -h prod-cassandra-nodes.txt -l ubuntu -P 'nodetool -h localhost -p
7199 snapshot stocktouch'
echo "making tar balls"
pssh -h prod-cassandra-nodes.txt -l ubuntu -P -t 0 'rm
`hostname`-cassandra-snapshot.tar.gz'
pssh -h prod-cassandra-nodes.txt -l ubuntu -P -t 0 'tar -zcvf
`hostname`-cassandra-snapshot.tar.gz
/raid0/cassandra/data/stocktouch/snapshots'
echo "coping tar balls"
pslurp -h prod-cassandra-nodes.txt -l ubuntu
/home/ubuntu/*cassandra-snapshot.tar.gz .
echo "tar'ing tar balls"
tar -cvf cassandra-snapshots-all-nodes.tar 10*
echo "pushing to S3"
../s3cmd-1.1.0-beta3/s3cmd put cassandra-snapshots-all-nodes.tar
s3://stocktouch-backups
echo "DONE!"
