Cancel timers while adding new timer

[XuanYang-cn]

See also: #17335

Signed-off-by: yangxuan xuan.yang@zilliz.com

[mergify]

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[codecov]

Codecov Report

Merging #17511 (7ccf03f) into master (c77bc81) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #17511      +/-   ##
==========================================
+ Coverage   81.01%   81.04%   +0.03%     
==========================================
  Files         464      464              
  Lines       73204    73233      +29     
==========================================
+ Hits        59306    59353      +47     
+ Misses      11278    11270       -8     
+ Partials     2620     2610      -10     

Impacted Files	Coverage Δ
internal/datacoord/channel_checker.go	97.22% <100.00%> (+0.02%)	⬆️
internal/datacoord/channel_manager.go	70.91% <100.00%> (+0.05%)	⬆️
internal/indexcoord/meta_table.go	81.91% <0.00%> (-1.30%)	⬇️
internal/indexnode/indexnode_mock.go	86.69% <0.00%> (-1.15%)	⬇️
internal/querynode/impl.go	47.01% <0.00%> (-0.85%)	⬇️
internal/mq/msgstream/mq_msgstream.go	78.51% <0.00%> (-0.30%)	⬇️
internal/rootcoord/root_coord.go	79.15% <0.00%> (-0.10%)	⬇️
internal/querycoord/task.go	77.09% <0.00%> (+0.33%)	⬆️
internal/rootcoord/task.go	78.20% <0.00%> (+0.39%)	⬆️
internal/indexcoord/index_coord.go	77.65% <0.00%> (+0.39%)	⬆️
... and 8 more

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[congqixia]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: congqixia, XuanYang-cn

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