Percona Server moved to https://jira.percona.com/projects/PS

innodb_corrupt_table_action=salvage needs to be documented

Bug #1042150 reported by Laurynas Biveinis
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Percona Server moved to https://jira.percona.com/projects/PS
Fix Released
Medium
Hrvoje Matijakovic
5.5
Fix Released
Medium
Hrvoje Matijakovic

Bug Description

First will review its implementation.

Related branches

lp://staging/~hrvojem/percona-server/bug1059987-5.5
Alexey Kopytov (community): Approve
Diff: 176 lines (+75/-17)
6 files modified
doc/source/index.rst (+1/-0)
doc/source/performance/binary_group_commit.rst (+45/-0)
doc/source/performance/innodb_fast_checksum.rst (+1/-1)
doc/source/performance/innodb_numa_support.rst (+6/-6)
doc/source/reliability/innodb_corrupt_table_action.rst (+11/-9)
doc/source/scalability/innodb_io_55.rst (+11/-1)
Revision history for this message
Raghavendra D Prabhu (raghavendra-prabhu) wrote :

Also, reported/discussed here https://bugs.launchpad.net/percona-server/+bug/1025705

Revision history for this message
Raghavendra D Prabhu (raghavendra-prabhu) wrote :

The

   /* The user may be dumping a corrupt table. Jump
   over the corruption to recover as much as possible. */

in row_search_for_mysql seems to indicate that this feature can be used to dump a table which has a few pages corrupt by skipping over them. This can be / is a very useful feature to have in minor data recoveries.

Before recommending to customers, it would be good to have it tested (with test cases testable with mysql-test-run) and making sure it covers all possible corner cases of I/O to corrupted pages.

Revision history for this message
Stewart Smith (stewart) wrote : Re: [Bug 1042150] Re: innodb_corrupt_table_action=salvage needs to be documented

Raghavendra D Prabhu <email address hidden> writes:
> Before recommending to customers, it would be good to have it tested
> (with test cases testable with mysql-test-run) and making sure it covers
> all possible corner cases of I/O to corrupted pages.

we're more likely to fix problems as they come up, as it's really meant
for pretty serious DR rather than everyday use.

--
Stewart Smith

Hrvoje Matijakovic (hrvojem)
Changed in percona-server:
status: Fix Committed → Fix Released
Revision history for this message
Shahriyar Rzayev (rzayev-sehriyar) wrote :

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1268

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