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Don't cut off stack traces at 32MB. (#11364)

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This commit is contained in:
Nick Cabatoff
2021-04-16 15:55:05 -04:00
committed by GitHub
parent 4157ed4730
commit 5a17c4e5ff
2 changed files with 6 additions and 3 deletions
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3
changelog/11364.txt Normal file
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@@ -0,0 +1,3 @@
```release-note:improvement
core: allow arbitrary length stack traces upon receiving SIGUSR2 (was 32MB)
```

6
command/server.go
View File

@@ -14,6 +14,7 @@ import (
"os" "os"
"path/filepath" "path/filepath"
"runtime" "runtime"
"runtime/pprof"
"sort" "sort"
"strconv" "strconv"
"strings" "strings"
@@ -1969,9 +1970,8 @@ CLUSTER_SYNTHESIS_COMPLETE:
} }
case <-c.SigUSR2Ch: case <-c.SigUSR2Ch:
buf := make([]byte, 32*1024*1024) logWriter := c.logger.StandardWriter(&hclog.StandardLoggerOptions{})
n := runtime.Stack(buf[:], true) pprof.Lookup("goroutine").WriteTo(logWriter, 2)
c.logger.Info("goroutine trace", "stack", string(buf[:n]))
} }
} }