Skip to content

Eliminate logspam using filelog monitor #1032

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Eliminate logspam using filelog monitor #1032

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion pkg/systemlogmonitor/logwatchers/filelog/log_watcher.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,7 @@ func (s *filelogWatcher) watchLoop() {
}
log, err := s.translator.translate(strings.TrimSuffix(line, "\n"))
if err != nil {
klog.Warningf("Unable to parse line: %q, %v", line, err)
klog.V(5).Infof("Unable to parse line: %q, %v", line, err)
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

There are 2 types of errors: timestamp parsing error and message filtering error. This hides both errors. But I think you only want to hide the message filtering error, right? https://github.com/kubernetes/node-problem-detector/blob/master/pkg/systemlogmonitor/logwatchers/filelog/translator.go#L59

I think in the original design, we only considered the pattern where the message regular expression is common in the file log. This is true for kernel log for example. Can you share more of the use case here? It's probably valid and we may want to log here instead of erroring out: https://github.com/kubernetes/node-problem-detector/blob/master/pkg/systemlogmonitor/logwatchers/filelog/translator.go#L74

Copy link
Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Can you share more of the use case here?

I'll update the introductory comment on the PR with the use cases where this became a problem.

Copy link
Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

See also #1038

continue
}
// Discard messages before start time.
Expand Down