stop finding a task if it is canncelled

[fzhedu]

What problem does this PR solve?

Issue Number: close #1440

Problem Summary:
wait_for will stop until timeout or the lameda function returning true. So when finding a task, if it is cancelled, findTaskWithTimeout should return quickly and return errors, rather than the lameda function returning false and waiting for timeout.

What is changed and how it works?

Proposal: xxx

What's Changed:

Check List

Tests

• manual test
  the query returns a expected error.

mysql>  SELECT  ( table1 . `col_varchar_binary` , table1 . `col_varchar_binary_not_null_key` )  IN ( SELECT   SUBQUERY1_t2 . `col_varchar_binary_not_null_key` AS SUBQUERY1_field1 , SUM(  SUBQUERY1_t1 . `col_varchar_binary_not_null_key` ) AS SUBQUERY1_field2 FROM ( `K` AS SUBQUERY1_t1 STRAIGHT_JOIN `M` AS SUBQUERY1_t2 ON (SUBQUERY1_t2 . `col_decimal` = SUBQUERY1_t1 . `pk`  ) ) WHERE  SUBQUERY1_t1 . `col_varchar_binary_not_null_key`  IN ( SELECT   CHILD_SUBQUERY1_t1 . `col_varchar_binary_not_null` AS CHILD_SUBQUERY1_field1 FROM `S` AS CHILD_SUBQUERY1_t1 WHERE CHILD_SUBQUERY1_t1 . `col_varchar_binary` != 'a'  ) GROUP BY SUBQUERY1_field1  ) AS field1 ,  table1 . `col_varchar_binary_key` < ALL ( SELECT 'y' UNION DISTINCT SELECT 't' ) AS field2 FROM ( `S` AS table1 RIGHT  JOIN ( ( `II` AS table2 INNER JOIN `EE` AS table3 ON (table3 . `col_decimal_not_null_key` = table2 . `pk`  ) ) ) ON (table3 . `col_varchar_binary_not_null` = table2 . `col_varchar_binary_key`  ) ) WHERE (  table3 . `col_varchar_binary` <= ALL ( SELECT 'c' UNION  SELECT 'c' ) ) OR ( table1 . `col_varchar_binary_key` = 'm' OR table1 . `col_varchar_binary_key` = table2 . `col_varchar_binary_key` )  GROUP BY field1, field2;
ERROR 1105 (HY000): DB::TiFlashException: CastStringAsReal is not supported.

Release note

• No release note

[windtalker]

LGTM

[fzhedu]

/run-all-tests

[fzhedu]

/merge

[ti-srebot]

Your auto merge job has been accepted, waiting for:

• 1760

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/run-all-tests

[fzhedu]

/merge

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/run-all-tests

[ti-srebot]

@fzhedu merge failed.

[fzhedu]

/run-all-tests

[fzhedu]

/run-all-tests

[fzhedu]

/merge

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Your auto merge job has been accepted, waiting for:

• 1760

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@fzhedu merge failed.

[fzhedu]

/run-all-tests

[fzhedu]

/run-cherry-picker

[ti-srebot]

cherry pick to release-5.0 in PR #1784