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trace: hint debug env var in error when crashing due to active child tasks

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refs https://github.com/zrepl/zrepl/issues/542
This commit is contained in:
Christian Schwarz 2021-12-05 17:26:03 +01:00
parent b00b61e967
commit c1e2c9826f
2 changed files with 4 additions and 2 deletions
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2
daemon/logging/trace/trace.go
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@ -246,7 +246,7 @@ func WithTask(ctx context.Context, taskName string) (context.Context, DoneFunc)
// the debugString can be quite long and panic won't print it completely
fmt.Fprintf(os.Stderr, "going to panic due to activeChildTasks:\n%s\n", this.debugString())
}
panic(errors.WithMessagef(ErrTaskStillHasActiveChildTasks, "end task: %v active child tasks\n", this.activeChildTasks))
panic(errors.WithMessagef(ErrTaskStillHasActiveChildTasks, "end task: %v active child tasks (run daemon with env var %s=1 for more details)\n", this.activeChildTasks, debugEnabledEnvVar))
}
// support idempotent task ends

4
daemon/logging/trace/trace_debug.go
View File

@ -7,7 +7,9 @@ import (
"github.com/zrepl/zrepl/util/envconst"
)
var debugEnabled = envconst.Bool("ZREPL_TRACE_DEBUG_ENABLED", false)
const debugEnabledEnvVar = "ZREPL_TRACE_DEBUG_ENABLED"
var debugEnabled = envconst.Bool(debugEnabledEnvVar, false)
func debug(format string, args ...interface{}) {
if !debugEnabled {