Fix issue with tablet_template_url in HealthCheck #3959
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* Without this change, loadTabletUrl is only called during init method and it won't have the flag parsed yet. Signed-off-by: Rafael Chacon <[email protected]>
go/vt/discovery/healthcheck.go
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| @@ -120,12 +120,11 @@ const ( | |||
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| func init() { | |||
| loadTabletURLTemplate() | |||
| LoadHealthCheckTabletURLTemplate() | |||
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This should be removed then?
Instead, add a comment to the function "LoadHealthCheckTabletURLTemplate" that it should only be called after the flags are parsed?
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I left it intentionally because there was one template test that was failing without it. Fixing the test is straightforward, but I was worried that there might be a case out in the while where the template is used before LoadHealthCheckTabletURLTemplate is called. To be safe, I decided to leave the init.
Are you confident that is safe to remove?
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Okay, scratch what I said earlier. I understand the problem now.
I suggest the following:
- Rename the method to
ParseTabletURLTemplateFromFlag. - Add here a comment: "Flags are not parsed at this point and the default value of the flag (just the hostname) will be used."
- And a comment in the other file: "Flags are parsed now. Parse the template using the actual flag value and overwrite the current template."
What do you think?
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I think that makes. It will be clearer this way.
Signed-off-by: Rafael Chacon <[email protected]>
…emove more errors from operator planning (vitessio#3959) Signed-off-by: Andres Taylor <[email protected]>
Description
init()is called.Tests