Problem/Motivation

If a big string is inserted into a MySQL / Maria DB BLOB field that exceeds 10% of the the innodb_log_file_size setting you get this error message:

The size of BLOB/TEXT data inserted in one transaction is greater than 10% of redo log size.

Like in #972528: dblog fails to log MAX_ALLOWED_PACKET errors because they're longer than MAX_ALLOWED_PACKET the complete error message contains the complete query itself that caused the error. Therefore it is impossible to succeed to log that exception in a MySQL dblog.

Proposed resolution

Like in #972528: dblog fails to log MAX_ALLOWED_PACKET errors because they're longer than MAX_ALLOWED_PACKET the error message needs to be truncated before written to dblog.

Remaining tasks

none

User interface changes

none

API changes

none

Data model changes

none

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Comments

mkalkbrenner created an issue. See original summary.

mkalkbrenner’s picture

Status: Active » Needs review
FileSize
4.92 KB

Status: Needs review » Needs work

The last submitted patch, 2: 2833100.patch, failed testing.

mkalkbrenner’s picture

Status: Needs work » Needs review
FileSize
4.92 KB

Status: Needs review » Needs work

The last submitted patch, 4: 2833100_50percent.patch, failed testing.

mkalkbrenner’s picture

Status: Needs work » Needs review

I have no idea, why the test doesn't force the exception on CI. In my local test environment it works.
Is it acceptable to provide such a trivial patch without a test?

As you can see in https://www.drupal.org/node/1679344#comment-11838038 the patch would be helpful.

Version: 8.3.x-dev » 8.4.x-dev

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gease’s picture

Rerolled patch from #4 against 8.9.x .

Status: Needs review » Needs work

The last submitted patch, 13: 2833100_50percent-13.patch, failed testing. View results
- codesniffer_fixes.patch Interdiff of automated coding standards fixes only.

daffie’s picture

@gease: Could you move the added test to its own method. I would like to help to get this issue fixed.

gease’s picture

Status: Needs work » Needs review
FileSize
6.17 KB
2.65 KB

As per #16, moved innodb_max_log_size test into separate method. Not that I would understand clearly why we need to close connection and get it again at certain point, but otherwise the test hangs.

Status: Needs review » Needs work

The last submitted patch, 17: 2833100_50percent-17.patch, failed testing. View results
- codesniffer_fixes.patch Interdiff of automated coding standards fixes only.

Version: 8.9.x-dev » 9.1.x-dev

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