Perconais glad to announce the release ofPercona XtraBackup2.1.9 on May 7th, 2014. Downloads are available from our download sitehereandPercona Software Repositories.
This release is the current GA (Generally Available) stable release in the 2.1 series.Percona XtraBackupis an open source, freeMySQLhot backup software that performs non-blocking backups forInnoDBandXtraDBdatabases.Percona XtraBackupis an open source, freeMySQLhot backup software that performs non-blocking backups forInnoDBandXtraDBdatabases.
New Features
- Percona XtraBackuphas now been rebased onMySQL5.6.17.
- Percona XtraBackuppackage is now available forUbuntu14.04.
Bugs Fixed
- Percona XtraBackupcouldn’t be built withBison3.0. Bug fixed#1262439.
- The xtrabackup binaries now recognize a new
my.cnfoption,open_files_limit. The effect is the same as for the server: it changes the maximum number of file descriptors available to the xtrabackup process. The actual limit depends on the platform andulimitsettings. Bug fixed#1183793. - If a remoteInnoDBtablespace got
CREATEd orALTERed during the backup, an attempt to prepare such a backup later would lead toPercona XtraBackupcrash. Bug fixed#1291299. - Code in both
innobackupexandxtrabackup, that was supposed to make sure no child processes are left running in caseinnobackupexgot killed or failed with an error, relied on the fact theSIGTERMandSIGINTsignals were not blocked by thextrabackupprocess. However, bothSIGTERMandSIGINTmight be blocked by the process that had invokedinnobackupex, for example, by thePercona XtraDB Clusterserver processes doing an SST, in which case they were also blocked by the xtrabackup process, since the signal mask is inherited by child processes. Fixed by replacingSIGTERMin innobackupex andSIGINTin xtrabackup auto-termination withSIGKILL. Bug fixed#1294782. - A new table flag in theInnoDBdata dictionary, introduced inMySQL5.6.16, wasn’t recognized byPercona XtraBackupwhich lead to “
InnoDB: in InnoDB data dictionary has unknown flags 50.” warnings. Fixed by rebasingPercona XtraBackuponMySQL5.6.17. Bug fixed#1302882.
Release notes with all the bugfixes forPercona XtraBackup 2.1.9 are available in ouronline documentation. All ofPercona‘s software is open source and free, all the details of the release can be found in the2.1.9 milestoneat Launchpad. Bugs can be reported on thelaunchpad bug tracker.
What Are the Limitations of Using Views in MySQL?May 14, 2025 am 12:10 AMMySQLviewshavelimitations:1)Theydon'tsupportallSQLoperations,restrictingdatamanipulationthroughviewswithjoinsorsubqueries.2)Theycanimpactperformance,especiallywithcomplexqueriesorlargedatasets.3)Viewsdon'tstoredata,potentiallyleadingtooutdatedinforma
Securing Your MySQL Database: Adding Users and Granting PrivilegesMay 14, 2025 am 12:09 AMProperusermanagementinMySQLiscrucialforenhancingsecurityandensuringefficientdatabaseoperation.1)UseCREATEUSERtoaddusers,specifyingconnectionsourcewith@'localhost'or@'%'.2)GrantspecificprivilegeswithGRANT,usingleastprivilegeprincipletominimizerisks.3)
What Factors Influence the Number of Triggers I Can Use in MySQL?May 14, 2025 am 12:08 AMMySQLdoesn'timposeahardlimitontriggers,butpracticalfactorsdeterminetheireffectiveuse:1)Serverconfigurationimpactstriggermanagement;2)Complextriggersincreasesystemload;3)Largertablesslowtriggerperformance;4)Highconcurrencycancausetriggercontention;5)M
MySQL: Is it safe to store BLOB?May 14, 2025 am 12:07 AMYes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe
MySQL: Adding a user through a PHP web interfaceMay 14, 2025 am 12:04 AMAdding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.
MySQL: BLOB and other no-sql storage, what are the differences?May 13, 2025 am 12:14 AMMySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand
MySQL Add User: Syntax, Options, and Security Best PracticesMay 13, 2025 am 12:12 AMToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith
MySQL: How to avoid String Data Types common mistakes?May 13, 2025 am 12:09 AMToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
SublimeText3 English version
Recommended: Win version, supports code prompts!
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
SublimeText3 Linux new version
SublimeText3 Linux latest version
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
