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Add trace message output #79

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merged 8 commits into from
Jan 8, 2020
Merged

Add trace message output #79

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9c5b78c
Add trace message output when severity is fatalLog and -logtostderr h…
scaat Jul 31, 2019
ccbccb0
Merge remote-tracking branch 'upstream/master'
scaat Aug 9, 2019
8189c37
Add trace message output when severity is fatalLog and -logtostderr h…
scaat Aug 9, 2019
7707414
Reformat the code
scaat Aug 9, 2019
d5e1ba9
Add trace message output
scaat Aug 9, 2019
b3e5612
Use lockAndFlushAll instead of flushAll
scaat Aug 9, 2019
0b5824c
Update tests for new behaviour
scaat Aug 12, 2019
fdd1c48
Update fatalLog processing flow
scaat Aug 12, 2019
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15 changes: 6 additions & 9 deletions integration_tests/klog_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -82,10 +82,9 @@ func TestDestinationsWithDifferentFlags(t *testing.T) {
notExpectedInDir map[int]res
}{
"default flags": {
// Everything, EXCEPT the trace on fatal, goes to stderr
// Everything, including the trace on fatal, goes to stderr

expectedOnStderr: res{infoLogRE, warningLogRE, errorLogRE, fatalLogRE},
notExpectedOnStderr: res{stackTraceRE},
expectedOnStderr: allLogREs,
},
"everything disabled": {
// Nothing, including the trace on fatal, is showing anywhere
Expand All @@ -104,12 +103,11 @@ func TestDestinationsWithDifferentFlags(t *testing.T) {
notExpectedOnStderr: res{infoLogRE},
},
"with logtostderr only": {
// Everything, EXCEPT the trace on fatal, goes to stderr
// Everything, including the trace on fatal, goes to stderr

flags: []string{"-logtostderr=true", "-alsologtostderr=false", "-stderrthreshold=1000"},

expectedOnStderr: res{infoLogRE, warningLogRE, errorLogRE, fatalLogRE},
notExpectedOnStderr: res{stackTraceRE},
expectedOnStderr: allLogREs,
},
"with log file only": {
// Everything, including the trace on fatal, goes to the single log file
Expand All @@ -135,14 +133,13 @@ func TestDestinationsWithDifferentFlags(t *testing.T) {
notExpectedInDir: defaultNotExpectedInDirREs,
},
"with log dir and logtostderr": {
// Everything, EXCEPT the trace on fatal, goes to stderr. The -log_dir is
// Everything, including the trace on fatal, goes to stderr. The -log_dir is
// ignored, nothing goes to the log files in the log dir.

logdir: true,
flags: []string{"-logtostderr=true", "-alsologtostderr=false", "-stderrthreshold=1000"},

expectedOnStderr: res{infoLogRE, warningLogRE, errorLogRE, fatalLogRE},
notExpectedOnStderr: res{stackTraceRE},
expectedOnStderr: allLogREs,
},
"with log file and log dir": {
// Everything, including the trace on fatal, goes to the single log file.
Expand Down
10 changes: 4 additions & 6 deletions klog.go
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Expand Up @@ -827,14 +827,12 @@ func (l *loggingT) output(s severity, buf *buffer, file string, line int, alsoTo
os.Exit(1)
}
// Dump all goroutine stacks before exiting.
// First, make sure we see the trace for the current goroutine on standard error.
// If -logtostderr has been specified, the loop below will do that anyway
// as the first stack in the full dump.
if !l.toStderr {
os.Stderr.Write(stacks(false))
trace := stacks(true)
// Write the stack trace for all goroutines to the stderr.
if l.toStderr || l.alsoToStderr || s >= l.stderrThreshold.get() || alsoToStderr {
os.Stderr.Write(trace)
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}
// Write the stack trace for all goroutines to the files.
trace := stacks(true)
logExitFunc = func(error) {} // If we get a write error, we'll still exit below.
for log := fatalLog; log >= infoLog; log-- {
if f := l.file[log]; f != nil { // Can be nil if -logtostderr is set.
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4 changes: 2 additions & 2 deletions klog_test.go
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Expand Up @@ -482,7 +482,7 @@ func TestOpenAppendOnStart(t *testing.T) {
// Logging agagin should open the file again with O_APPEND instead of O_TRUNC
Info(y)
// ensure we wrote what we expected
logging.flushAll()
logging.lockAndFlushAll()
b, err = ioutil.ReadFile(logging.logFile)
if err != nil {
t.Fatalf("unexpected error: %v", err)
Expand All @@ -491,7 +491,7 @@ func TestOpenAppendOnStart(t *testing.T) {
t.Fatalf("got %s, missing expected Info log: %s", string(b), y)
}
// The initial log message should be preserved across create calls.
logging.flushAll()
logging.lockAndFlushAll()
b, err = ioutil.ReadFile(logging.logFile)
if err != nil {
t.Fatalf("unexpected error: %v", err)
Expand Down