sigdump

library0.2.5rbrubygemsunverified

Setup signal handler which dumps backtrace of running threads and number of allocated objects per class. Require 'sigdump/setup', send SIGCONT, and see /tmp/sigdump-<pid>.log.

utility observability

gem install sigdump

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INSTALL

IMPORT

SIG · SIGDUMP

sigdump

utilityrubyv0.2.5

harness data pending

Install & Compatibility

Where this runs

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Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Sigdump

✓ require 'sigdump/setup'

Install a SIGCONT handler that dumps thread backtraces and object allocations to a log file.

require 'sigdump/setup' # After requiring, send SIGCONT to the process to dump thread backtraces # kill -SIGCONT <pid> # Output goes to /tmp/sigdump-<pid>.log # Simulate a busy thread Thread.new { loop {} } sleep 1 Process.kill('CONT', Process.pid) puts File.read("/tmp/sigdump-#{Process.pid}.log") rescue 'Check log file'

Debug

Known issues

gotchaThe signal handler writes to /tmp, which may not be writable in all environments (e.g., containers).

fix

Set the SIGDUMP_PATH environment variable to a writable directory.

affects: >= 0.0.0

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Version history

0.2.5latest on RubyGems

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Dependencies

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Resources

githubhttps://github.com/frsyuki/sigdump ↗

homepagehttps://github.com/frsyuki/sigdump ↗

docshttp://www.rubydoc.info/gems/sigdump/ ↗