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Percona Server is drop-in alternative for the well-known MySQL, with total backward compatibility.
Percona Server gives diagnostic tools helpful to DBAs, and additional tunability of server conduct. Also integrated is Percona's on the net backup utility XtraBackup, the wide open resource instrument for the XtraDB / InnoDB.
Percona Server with XtraDB shows remarkable effectiveness and scalability on today's high - conclusion server methods with a lot of CPUs and rapid storage subsystems such as flash storage and SSD.
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Below are some key functions of "Percona Server":
· Scalability: Handles a lot more concurrent transactions, and scales up on potent servers.
· Efficiency : Fast IO route, better interior cooperation, and rapid checksums.
· Flexibility : Variable webpage size, better table and buffer swimming pool control, and configurable insert buffer.
· Consistency : Resilience to corrupted data, and crash- protected transactional replication.
· Administration : On the net backup, InnoDB table import/export, quickly recovery, and configurable data dictionary.
· Diagnostics: Improved profiling and instrumentation.
What is actually New in This Release : [ examine entire changelog ]
New Functions :
· Many bitmap file help for XtraDB changed website page tracking has been carried out.
· Percona Server now has an solution to create the binary tarball with enabled debugging. New flag --debug has been additional to the create script, that will generate a build with the debug-enabled binaries. New binaries will have -debug appended in instance it is a debug develop, ie. mysqld-debug.
· HandlerSocket has been up-to-date to model 1. one.
· innochecksum has been extended with an selection to examine file style information from a given InnoDB knowledge file. As only the initial website page requirements to be read to detect the format / edition information, it can also be utilised on a working server. This information can be useful when carrying out the Broaden Table Import.
· Help for Phony Alterations has been better by fetching the sibling pages.
· Fast InnoDB Checksum function has now been deprecated.
Bugs Set :
· innodb_ pretend _ modifications didn't handle replicate keys on Change. In some scenarios this could bring about infinite loop. Bug fastened #898306 (Mark Callaghan, Laurynas Biveinis).
· Fastened the package deal dependencies for CentOS six, that brought about conflicts in the course of the install. Bug preset #908620 (Ignacio Nin).
· innodb_ fake _ alterations would allocate as well quite a few extents on UPDATE. In some instances this could cause infinite loop. Bug fastened #917942 (Mark Callaghan, Laurynas Biveinis).
· Fixed the upstream bug #67737. mysqldump exam would fall short because of to mixing STDOUT and STDERR. Bug mounted #959198 (Stewart Smith).
· Even though fake modify transactions downgrade the asked for exceptional (X) row locks to shared (S) locks, these S locks avert X locks from currently being taken and block the actual improvements. This resolve introduces a new choice innodb_locking_ bogus _ adjustments which, when established to Untrue, can make pretend transactions not to consider any row locks. Bug set #1064326 (Mark Callaghan, Laurynas Biveinis).
· Faux modifications ended up increasing the altered row and userstat counters. Bug fixed #1064333 (Laurynas Biveinis).
· Log tracking was initialized as well late in the course of the InnoDB startup. Bug fixed #1076892 (Laurynas Biveinis).
· Debuginfo Debian offers have been extra for Percona Server. Bugs preset #711062 and #1043873 (Ignacio Nin).
· There is no need to have to scan buffer swimming pool for AHI entries after the B- trees for the tablespace have been dropped, as that will previously thoroughly clean them. Bug set #1076215 (Laurynas Biveinis).
Via: Percona Server 5.1.66-14.1 / 5.5.28-29.2 / 5.6 Alpha
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