Percona Qpress [WORK] Download

Enable the repository: percona-release enable-only tools release. If you intend to use Percona XtraBackup in combination with the upstream MySQL Server, you only need to enable the tools repository: percona-release enable-only tools.

In order to successfully use the innobackupex --decompress option,qpress binary needs to installed and within the path. innobackupex --parallel can be used with innobackupex --decompress option to decompress multiple files simultaneously.

Percona Qpress Download

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Hi svidal , can you try running qpress directly against the *.qp files, then run xtrabackup without --decompress option? Looks to me like you have potentially corrupted compressed files (qpress: Unexpected end of source file). Check the command line options as you might need to attempt recovery: [url] [/url]

Hi Coburn, sorry about last thaaaat much. Yes, at that time, I have ran qpress over all files. But thats does not matter, recently I could retrieve successfully a mysql database from one month back. I have to say this is a outstanding tool. Best regards!

we have debian 12 system and we are trying to restore mysql backup taken using xtrabackup.

we have installed xtrabackup on debian 12 but unable to install qpress

its is required as our backup is compressed

Here is the command and output

I am migrating our CentOS 5.7 to Ubuntu 5.7. In Centos, we are using qpress with our xtrabackup. I installed percona-xtrabackup-24_2.4.28-1.focal_amd64.deb on our Ubuntu Focal. Do I need qpress? If so, where can I get it?

Percona XtraDB Cluster (PXC) offers a great deal of flexibility when it comes to the state transfer (SST) options (used when a new node is automatically provisioned with data). For many environments, on-the-fly compression capability gives great benefits of saving network bandwidth during the process of sending sometimes terabytes of data. The usual choice for compression here is a built-in Percona XtraBackup compress option (using qpress internally), or options compressor/decompressor for the compression tool of choice. In the second case, the popular option is the gzip or its multi-threaded version pigz, which offers a better compression rate than qpress.

One thing that needs clarification is the difference between the two methods using qpress (quicklz) compression. When using the compress option for Percona XtraBackup, the tool first compresses each file and sends it with .qp suffix to the joiner. Then, the joiner has to decompress those files before it can prepare the backup. Therefore, it is always a more expensive one as requires more disk space during the process.

A portable file archiver using QuickLZ

qpress is a portable file archiver using QuickLZ and designed to utilize fast

storage systems to their max. It's often faster than file copy because the

destination is smaller than the source. A few features:

multiple cores, reaching upto 1.1 Gbyte/s in-memory compression

on a quad core i7

64-bit file sizes and tested with terabyte sized archives containing

millions of files and directories

pipes and redirection and *nix-like behaviour for scripting and flexibility

Adler32 checksums to ensure that decompressed data has not been corrupted

data recovery of damaged archives with 64 Kbyte grannularity

unbuffered disk I/O (Windows only) to prevent disk cache of other

applications from being flushed

If you installed qpress from a Linux repo, as far as I can tell, these are still using the original unpatched 2010 source. You should replace your executable with a freshly built binary which includes the patch.

The following script uses Percona XtraBackup to back up Controller data. To use it, you need the percona-xtrabackup or xtrabackup and qpress packages. For information on installing XtraBackup, see the Percona installation documentation. ff782bc1db