…” width=”247″] Percona Server for MySQL version 5.6.11-60…calloc() directly instead of using InnoDB heap allocation. This may improve…in INFORMATION_SCHEMA (CLIENT_STATISTICS, INDEX_STATISTICS, TABLE_STATISTICS, THREAD_STATISTICS, … Reduced the overhead from the Handle Corrupted Tables check as it was …
Post: Percona Server for MySQL 5.5.30-30.2 now available
April 10, 2013 By 10 Comments
…key constraint which implied an implicit secondary index with the same name. Fixed by …1099387 (Alexey Bychko). Reduced the overhead from innodb_pass_corrupt_table value checks by optimizing them for…Alexey Bychko). Percona Server for MySQL was missing help texts in the MySQL client because the help…
Post: Percona Server 5.5.30-30.2 rerelease fixes non-restart issue
April 24, 2013 By Leave a Comment
…key constraint which implied an implicit secondary index with the same name. Fixed by …1099387 (Alexey Bychko). Reduced the overhead from innodb_pass_corrupt_table value checks by optimizing them for…Alexey Bychko). Percona Server for MySQL was missing help texts in the MySQL client because the help…
Post: Is your MySQL buffer pool warm? Make it sweat!
April 16, 2013 By 6 Comments
…. The buffer pool and adaptive hash index on the standby server will not …| percona-playback –mysql-host 127.0.0.1 –mysql-username playback –mysql-password PaSSwOrd –mysql-schema schema_name… the option innodb_fake_changes to prevent INSERTs, UPDATEs, and DELETEs from corrupting the data …
Post: How to recover table structure from InnoDB dictionary
April 22, 2013 By 4 Comments
… was dropped and innodb_file_per_table is ON Frm file corrupt, zeroed out, lost or SHOW CREATE TABLE crashes MySQL There is… names explain their content. Index id in our example is 1679: mysql> SELECT * FROM SYS_FIELDS WHERE INDEX_ID = 1679; +———-+—–+———-+ | INDEX_ID | POS | COL…
Post: Finally. How to verify if all MySQL records were recovered
April 25, 2013 By Leave a Comment
… recovery case the same question arises: How many MySQL records were recovered and how many were lost. …two ways to know how many records an InnoDB page stores. The index page has a header PAGE_N_RECS …conclusions can be make: The page structure is not corrupt You know how many records to expect This …
Comment: How to recover table structure from InnoDB dictionary
May 8, 2013 By 4 Comments
… was saved then ibdata1 should be valid, maybe with some corruption. The tables structure you can get from the dictionary as….percona.com/docs/wiki/innodb-data-recovery-tool:mysql-data-recovery:start . The biggest challenge here is to find index_id for each table – http://www.percona.com/docs/wiki/innodb-data-recovery-tool:mysql-data-recovery:advanced…
Post: Recovering Innodb table Corruption
July 4, 2008 By 22 Comments
… with >= MySQL-4.1.1 and stored already) 6353 InnoDB: Page may be an index page where index id is 0 25556 InnoDB: (index “PRIMARY” of table “test”.”test”) InnoDB: Database page corruption on disk…
Post: MySQL Crash Recovery
July 30, 2006 By 30 Comments
… Innodb log and binary log are synchronized. In MySQL 5.0 XA is taking care of this synchronization. .frm Corruption – Few people know MySQL… – warmup takes longer time on extreme load. Innodb statistics – Unlike MyISAM Innodb does not store index cardinality in tables, instead it computes them…
Post: Connecting orphaned .ibd files
May 13, 2011 By 19 Comments
…erroneously removed 2. ibdata1 is heavily corrupted and innodb_force_recovery doesn’t help … 15 in all actor’s indexes: mysql> select * from INNODB_SYS_INDEXES WHERE TABLE_ID = 13G *************************** 1…MySQL 5.1 on CentOS 5.6 x86_64. However it expected to work on all versions of MySQL/InnoDB…
