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executor: fix log desensitization bug in prestmt #19392

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merged 8 commits into from
Aug 24, 2020

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crazycs520
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@crazycs520 crazycs520 commented Aug 24, 2020

Signed-off-by: crazycs520 crazycs520@gmail.com

What problem does this PR solve?

Close #18566 (comment)

When tidb log enables desensitization (set @@global.tidb_log_desensitization = 1;), the slow-log and log may still out put the previous statement that doesn't desensitization:

before

...
# Prev_stmt: insert into t values (1,1),(2,2),(3,3),(4,4),(5,5)
commit;

this PR

...
# Prev_stmt: insert into t values ( ... ) , ( ... ) , ( ... ) , ( ... ) , ( ... )
commit;

Related changes

  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test
  • Manual test
set @@tidb_slow_log_threshold=0;
begin;insert into t values (1,1),(2,2),(3,3),(4,4),(5,5); 
commit;
set @@tidb_slow_log_threshold=100;
-- Then check the tidb-slow-log file.

Side effects

  • Performance regression
    • Consumes more CPU

Release note

  • Fix log desensitization bug in prestmt

Signed-off-by: crazycs520 <crazycs520@gmail.com>
@crazycs520 crazycs520 requested a review from a team as a code owner August 24, 2020 07:15
@crazycs520 crazycs520 requested review from SunRunAway and removed request for a team August 24, 2020 07:15
@crazycs520 crazycs520 added security Everything related with security sig/execution SIG execution labels Aug 24, 2020
Signed-off-by: crazycs520 <crazycs520@gmail.com>
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bb7133 commented Aug 24, 2020

LGTM

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@bb7133,Thanks for your review. However, LGTM is restricted to Reviewers or higher roles.See the corresponding SIG page for more information. Related SIGs: execution(slack).

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LGTM

@ti-srebot ti-srebot added the status/LGT1 Indicates that a PR has LGTM 1. label Aug 24, 2020
jackysp
jackysp previously approved these changes Aug 24, 2020
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LGTM

@ti-srebot ti-srebot removed the status/LGT1 Indicates that a PR has LGTM 1. label Aug 24, 2020
ti-srebot
ti-srebot previously approved these changes Aug 24, 2020
@ti-srebot ti-srebot added the status/LGT2 Indicates that a PR has LGTM 2. label Aug 24, 2020
Signed-off-by: crazycs520 <crazycs520@gmail.com>
@crazycs520 crazycs520 dismissed stale reviews from ti-srebot and jackysp via bc46872 August 24, 2020 08:06
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bb7133 commented Aug 24, 2020

LGTM

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@bb7133,Thanks for your review. However, LGTM is restricted to Reviewers or higher roles.See the corresponding SIG page for more information. Related SIGs: execution(slack).

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jackysp commented Aug 24, 2020

Please resolve conflicts. @crazycs520

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/run-all-tests

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@bb7133,Thanks for your review. However, LGTM is restricted to Reviewers or higher roles.See the corresponding SIG page for more information. Related SIGs: execution(slack).

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/run-check_dev_2

@crazycs520 crazycs520 merged commit 9620b71 into pingcap:master Aug 24, 2020
@crazycs520 crazycs520 deleted the fix-prestmt branch August 24, 2020 12:28
ti-srebot pushed a commit to ti-srebot/tidb that referenced this pull request Sep 17, 2020
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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cherry pick to release-4.0 in PR #20048

ti-srebot added a commit that referenced this pull request Sep 17, 2020
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
Signed-off-by: crazycs520 <crazycs520@gmail.com>
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Support error/info log desensitization
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