xtrabackup problems

MySQL & MariaDB Percona XtraBackup
1

I’m a noob at this so please bear with me.

  1. Installed xtrabackup via the yum repos and from what I noticed, it replaced my mysqld server. Gave me quite a nightmare thinking I’d loose my data but it’s all good. I only have one complain now … mysqld logs is not showing up now. I have the correct config in my.cnf pointing to /var/log/mysqld.log but it’s not writing there. How do I fix it?

  2. I went ahead with the innobackup script and gzip it up and here’s what I saw after several long hours. Should I be concerned that the backup wasn’t done properly? The rest of the backups above looks fine with only that last message which I think could be ignored as it’s just trying to unlock the tables. It could cause some problems with my current db? Thanks in advance

====
innobackupex-1.5.1: Resuming ibbackup

xtrabackup: The latest check point (for incremental): ‘227719398386’

log scanned up to (227719401863)
xtrabackup: Transaction log of lsn (227704425299) to (227719401863) was copied.
innobackupex-1.5.1: Error: mysql child process has died: ERROR 2006 (HY000) at line 13: MySQL server has gone away
while waiting for reply to MySQL request: ‘UNLOCK TABLES;’ at /usr/bin/innobackupex-1.5.1 line 479.

2

I am not sure why it replaced your mysqld, that should not happen unless you mistakenly installed the wrong thing or there was a dependency mixup or something.

The error message you mentioned has been solved several times on the mailing list. Can you search for that? If you find a link to the thread, can you post it here for future reference?

3
[B]osensei wrote on Wed, 16 June 2010 05:46[/B]
I'm a noob at this so please bear with me.
  1. Installed xtrabackup via the yum repos and from what I noticed, it replaced my mysqld server.

Sounds like a bug. XtraBackup rpm does really have a dependancy on mysql-client, but not a server of course.

If it is possible, could you please show output of “rpm -qa | grep -i -e mysql -e percona” before and after XtraBacukup installation?

What is you operation system? Are there any additional repos installed on the system?

Regards,
Aleks

4

I am using CentOS 5.3 64bit

This is after installation cos it’s already installed. I have the basic repo, rpmforge and percona

rpm -qa | grep -i -e mysql -e percona

Percona-XtraDB-client-51-5.1.45-10.2.rhel5
php-mysql-5.1.6-23.2.el5_3
MySQL-shared-compat-5.1.40-2
MySQL-server-percona-highperf-5.0.87-b20.29.rhel5
Percona-XtraDB-shared-51-5.1.45-10.2.rhel5
perl-DBD-mysql-4.014-1.el5.rf

Which is the best painless way of installing it? The first server went smooth with repo way. The 2nd replaced my mysqld. I tried on 3rd server with rpm and I got this

==

rpm -ivh xtrabackup-1.2-22.rhel5.x86_64.rpm

warning: xtrabackup-1.2-22.rhel5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID cd2efd2a
error: Failed dependencies:
mysql-client is needed by xtrabackup-1.2-22.rhel5.x86_64

===

Thanks in advance )

5

First off, I think your RPMs are inconsistent. Based on your first post, you would’ve been using packages on the highperf-5.0.87 release and when you installed XtraBackup you agreed on installing the dependencies.

Is there a reason you are still on 5.0.87? If upgrading is a possible option for you, you can proceed with the following steps TAKING BACKUPS beforehand )

If not, try to see what packages will match you 5.0.87 release by running yum list|grep ercona

You should try removing these 2 items first:
MySQL-shared-compat-5.1.40-2
MySQL-server-percona-highperf-5.0.87-b20.29.rhel5

And replace them with these:
Percona-XtraDB-shared-51-5.1.45-10.2.rhel5.x86_64.rpm
Percona-XtraDB-server-51-5.1.45-10.2.rhel5.x86_64.rpm
Percona-Server-shared-compat-5.1.43-3.x86_64.rpm

Then try installing XtraBackup again.