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mod_traceback/README.markdown @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parent 2799:db0f654b9b3f
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db0f654b9b3f mod_traceback: Add a brief README
Kim Alvefur <zash@zash.se>
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1 This module writes out a traceback to `traceback.txt` in Prosodys data
db0f654b9b3f mod_traceback: Add a brief README
Kim Alvefur <zash@zash.se>
parents:
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2 directory (see `prosodyctl about`) when the signal `SIGUSR1` is
db0f654b9b3f mod_traceback: Add a brief README
Kim Alvefur <zash@zash.se>
parents:
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3 received. This is useful when debugging seemingly frozen instances in
db0f654b9b3f mod_traceback: Add a brief README
Kim Alvefur <zash@zash.se>
parents:
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4 case it is stuck in Lua code.