fix bug that mpp_fail test cost too much time / Fix test clustered index test cases#1591
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hanfei1991
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Mar 19, 2021
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Will this PR fix the problem that Related to #1586 (comment) |
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/run-all-tests |
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/run-all-tests |
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Mark that this PR also fixes the test cases of clustered index. pingcap/tidb#23270 |
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cherry pick to release-5.0 in PR #1600 |
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com> Co-authored-by: xufei <xufei@pingcap.com>
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Yes, but this pr still have a small chances that TiFlash server will crash when meet some mpp errors, #1577 fix it. |
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What problem does this PR solve?
Issue Number: close #xxx
Problem Summary:
After pingcap/tidb#23056, fullstack test
mpp_failtakes too much time(more than 10 minutes), which is expected.What is changed and how it works?
Proposal: xxx
What's Changed:
How it Works:
The root cause is after pingcap/tidb#23056, TiDB will send
killcommand to kill all the mpp tasks for a specified query, and currently implementation of cancelling a mpp task will callwriteErrToAllTunnelto write error message to other mpp tasks, since all the mpp tasks are canceled at the same time,writeErrToAllTunnelmight hangs for a little time(write error message until tunnel is timeout), so the test execution time is much more than expected. In this pr, when canceling a mpp task, it just callcloseAllTunnelto close the tunnel, which only write error message to other mpp task if the tunnel is already connected.Related changes
pingcap/docs/pingcap/docs-cn:Check List
Tests
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