bugfix: event api connection may be recycled if keeps idle too long #2274
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Codecov Report
@@ Coverage Diff @@
## master #2274 +/- ##
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+ Coverage 66.7% 66.82% +0.12%
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Files 208 208
Lines 16934 16937 +3
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+ Hits 11295 11318 +23
+ Misses 4269 4262 -7
+ Partials 1370 1357 -13
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apis/server/system_bridge.go
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| // Notes(ziren): The pouchd http server set some http timeout parameters (see pouch/apis/server/server.go), | ||
| // that may cause long idle connections been recycled. So, creating a tick here to keep the | ||
| // event api alive. set the ticker to 8s because of the IdleTimeout of http server is 10s. | ||
| tickChan := time.NewTicker(time.Second * 10).C |
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I think we should use time.NewTicker and defer tick.Stop() here, because we don't want to leave it active in the timer heap.
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I am afraid we may not need the defer because i checked the example of NewTicker when we should add defer tick.Stop() when using NewTicker, but not need the Stop when using NewTicker().C
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OK, when i read the test cases in time package, i realize i am wrong. we should call defer tick.Stop() when creat a ticker.
apis/server/system_bridge.go
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| @@ -11,6 +11,7 @@ import ( | |||
| "github.com/alibaba/pouch/apis/types" | |||
| "github.com/alibaba/pouch/pkg/httputils" | |||
| "github.com/alibaba/pouch/pkg/utils" | |||
| "github.com/sirupsen/logrus" | |||
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| @@ -384,15 +384,15 @@ func (c *Client) collectContainerdEvents() { | |||
| } | |||
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| switch e.Topic { | |||
| case ContainersDeleteEventTopic: | |||
| cDelEvent, ok := out.(*eventstypes.ContainerDelete) | |||
| case TaskExitEventTopic: | |||
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Need know the exit code when a container exited, so we can get the task exit code from containerd task/exit event
…ed if it keeps idle too long Signed-off-by: Michael Wan <zirenwan@gmail.com>
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events api connection broken because of the Refer: golang/go#24461 |
Signed-off-by: Michael Wan zirenwan@gmail.com
If pouchd start http server with parameters below, http server will recycle the long connection if it keeps idle too long.
So, i add a ticker in
eventapi too keep the connection alive.Ⅰ. Describe what this PR did
Ⅱ. Does this pull request fix one issue?
none
Ⅲ. Why don't you add test cases (unit test/integration test)? (你真的觉得不需要加测试吗？)
none
Ⅳ. Describe how to verify it
none
Ⅴ. Special notes for reviews
none