Barman full Backup is not getting triggered. Installed Barman 2.3-2 in Ubantu 18.04 . Barman is taking incremental backup perfectly but it is not taking full backup.
Barman backup command show below output ,
Backup start at LSN:
This is the first backup for server h8
WAL segments preceding the current backup have been found:
from server h8 has been removed
Starting backup copy via rsync/SSH for 20220613T132933 (5 jobs)
When you install barman, you get a cron job in /etc/cron.d/barman that runs barman cron every minute.
That command, however, does not take any backups.
So, it's up to you to add the barman backup server_name --wait command in a cron of your choice (you can actually use the same /etc/cron.d/barman file if you so desire).
That has been discussion that barman cron should take backups according to the retention policy defined, but it actually doesn't, it just deletes existing backups according to that policy, but doesn't take them. See here.
Related
I'm currently setting up the monitoring for some SQL servers running on windows and I want to test if it picks up any errors that occur when backups fail. I'm using the CHECKSUM option for backup validation.
Is it possible to corrupt the backup in a way so that the CHECKSUM validation fails?
CHECKSUM verifies the file is not corrupt in the same RESTORE or BACKUP command; can also be set at a database-level so it always runs a self-check. I don't know of a way to intentionally cause this to fail during a BACKUP command, unless you're corrupting it on the I/O level outside of SQL Server.
RESTORE HEADERONLY verifies the file can be restored completely; this can be performed any time after the backup has completed. Essentially, fake-attempts a full restore to ensure the file is a legit backup. More info here.
Is there any way to schedule redis back-ups at a specific time of day (e.g. 3:00 AM GMT) - preferably via a setting in the accompanying conf file?
I already understand that one can set a backup rule in redis configuration (e.g. save every X hours if Y keys have changed).
But how does one schedule the said backup at a particular time of day? Would love to know something basic, but effective. In case it matters, my redis version is 5.0.3
So far I know it is currently not possible from inside redis. But its achievable using crontab. Here is a short example:
create a backup script file:
/tmp/backup.sh
echo save | redis-cli >> /tmp/redis-backup.log
If using sockets, the above would be:
echo save | redis-cli -s /var/run/redis.sock >> /tmp/redis-backup.log
The socket location in your system may vary.
Next, give execute permission to the script:
chmod +x /tmp/backup.sh
Finally, make an entry in crontab: crontab -e
0 3 * * * /tmp/backup.sh
This will run backup.sh in exactly 3AM.
In case you want to disable redis saving setup in the conf (without restarting the redis instance), the best way is to log into redis-cli and issue CONFIG SET save "". Double check that it worked via CONFIG GET save. Finally, don't forget to change the save settings in the relevant conf file as well. Lastly, it's wiser to use bgsave instead of save if tackling a redis instance in production.
For more, checkout these links:
How To Back Up and Restore Your Redis Data
Cron Scheduler
How To Start/Stop/Restart Cron Service In Linux
I plan on restoring from a cPanel backup using the cPanel Backup Wizard, but I would like to know if restoring from a backup in this way will delete any other cPanel backups that were made at a future date from the one I’m restoring from?
Specifically, I have backups generated on 10/1 and 10/5 (earlier today). If I restore from the backup on 10/1, will it delete the backup I created on 10/5?
Additional Details
I'm on a Bluehost VPS server running CentOS 6.7.
It's depend on the situation on which path you are trying to restore the backup. If you restore the 10/1 backup at the same path where your secnd copy 10/5 is present, then it will delete that same copy
I have a server (Machine A) that receives uploads throughout the day from other machines. I have a script running on another internal server (running as cron - Machine B) that uses rsync to pull these files onto itself and remove the originals on Machine A. Some of these uploads last an hour or more.
How do I use rsync so that it won't attempt to copy files that are currently uploaded (being written to)? I don't want it to pull partial uploads and then attempt to process them.
I'm using Ubuntu 10.04 64-bit on both machine A & B.
In order to make incremental baclups in rsync, you should put the --update or -u option. The only situation in which the a file existing in the receiver will be updated is when the archive exists and has the same timestamp in both ends but the size differs.
About the partial updates, all the temporary uploads are stored in a temporary archive and then moved to the dest directory when uploaded. you can use the --partial in case of a rsync or network problem, this will resume the partial updates next time you execute the sync again.
You can check the whole options from this man page.
I want to switch from MySQL to MongoDB but great data losses (more than 1 hour) are not acceptable for me.
I need to have 3 backup plans:
Hourly backup plan. Data is flushed to disk every X minutes and if something wrong with the server I shall be sure that after reboot it will have all data at least for an hour ago. Can I configure it?
Daily backup plan. Data is synced to backup disk every day so even if server explodes I can recover data for yesterday in some hours. Should I use fsync, master-slave or something else? I would like to have minimal traffic so ideally only changes will be sent.
Weekly backup plan. Data is synced to second backup disk so if both server and first backup disk explode I have at least data for last week. Here this is the question of reliability so it's ok to send all data via network.
How can I do it?
The fsync command flushes the data to disk. It is executed each 60 seconds by default, but can be configured using the --syncdelay command line parameter.
The documentation on backups has some good pointers for daily and weekly backups. For the daily backup, a master-slave configuration seems like the best option, as it will only sync changes.
For the weekly backup you can also use a master-slave configuration, or replication. Another option is the mongodump utility, which will back-up the entire database. It is capable of creating backups while the database is running, so you can run it on the main database or one of the slaves. You can also lock the slave before backing it up.
Try this backup script if you want to create a backup from slave mongodb database to S3.
DB host (secondary preferred as to avoid impacting primary performance)
HOST='SomeHost/mongodbtest-slave'
DB name
DBNAME=***
S3 bucket name
BUCKET=*-backup
Linux user account
USER=ubuntu
Current time
TIME=/bin/date +%d-%m-%Y-%T
Password
PASSWORD=somePassword#!2*1
Username
USERNAME=someUsername
Backup directory
DEST=/home/ubuntu/tmp
Tar file of backup directory
TAR=$DEST/../$TIME.tar
Create backup dir (-p to avoid warning if already exists)
/bin/mkdir -p $DEST
Log
echo "Backing up $HOST/$DBNAME to s3://$BUCKET/ on $TIME";
Dump from mongodb host into backup directory
mongodump --port 27017 -d DBNAME -u USERNAME -p PASSWORD -o $DEST
Create tar of backup directory
/bin/tar cvf $TAR -C $DEST .
Upload tar to s3
/usr/bin/aws s3 cp $TAR s3://$BUCKET/
Remove tar file locally
/bin/rm -f $TAR
Remove backup directory
/bin/rm -rf $DEST
All done
echo "Backup available at https://s3.amazonaws.com/$BUCKET/$TIME.tar
You can use the steps above put them in a shell executable file and execute this at any interval using crontab commands.
If you want to outsource the backup solution entirely, MongoDB Management Service takes snapshots every six hours. The default retention policy on the snapshots will allow you to get point-in-time restore for 24 hours, daily snapshots for a week, weekly snapshots for a month, and monthly snapshots for a year.
This FAQ has the full retention policy.
The backup service continually backs up your replica set by reading the oplog so the overhead is lower than full local periodic snapshots.
May be you can use automongobackup .
On the first point.
MongoDB has a term like 'durable write operation'. If journaling is enabled, you may only lose data that has not been writed in the log. This is a very small amount of time (100 milliseconds by default)
On the second and third points.
You can set master slave replication, but this will not protect you from data errors (for example, if important data is accidentally deleted). Therefore, you need to provide regular backups one way or another.
There are several approaches here:
LVM snapshot is a good solution if your filesystem supports it and the journaling is enabled in your mongoDB. For more details see here
mongodump -You can create a shell script that will run scheduled backups via cron and send them to storage. Here is an example of a good script
Backup as a Service. There are many solutions to make the backup for you.