f91c55d6cd
* Fix reloading in plugin/pprof.
Reloading the server without changing the listen address results in an
error because Startup is called for newly set up plugins before Shutdown
is called for the old ones.
Signed-off-by: Gonzalo Paniagua Javier <gonzalo.mono@gmail.com>
* Use pkg/reuseport when listening.
Use coredns' newly added reuseport.
Signed-off-by: Gonzalo Paniagua Javier <gonzalo.mono@gmail.com>
* Revert go.{mod,sum} changes.
Signed-off-by: Gonzalo Paniagua Javier <gonzalo.mono@gmail.com>
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|---|---|---|
| .. | ||
| log_test.go | ||
| OWNERS | ||
| pprof.go | ||
| README.md | ||
| setup.go | ||
| setup_test.go | ||
pprof
Name
pprof - publishes runtime profiling data at endpoints under /debug/pprof.
Description
You can visit /debug/pprof on your site for an index of the available endpoints. By default it
will listen on localhost:6053.
This is a debugging tool. Certain requests (such as collecting execution traces) can be slow. If you use pprof on a live server, consider restricting access or enabling it only temporarily.
This plugin can only be used once per Server Block.
Syntax
pprof [ADDRESS]
Optionally pprof takes an address; the default is localhost:6053.
An extra option can be set with this extended syntax:
pprof [ADDRESS] {
block [RATE]
}
blockoption enables block profiling, RATE defaults to 1. RATE must be a positive value. See Diagnostics, chapter profiling and runtime.SetBlockProfileRate for what block profiling entails.
Examples
Enable a pprof endpoint:
. {
pprof
}
And use the pprof tool to get statistics: go tool pprof http://localhost:6053.
Listen on an alternate address:
. {
pprof 10.9.8.7:6060
}
Listen on an all addresses on port 6060, and enable block profiling
. {
pprof :6060 {
block
}
}
Also See
See Go's pprof documentation and Profiling Go Programs.
See runtime.SetBlockProfileRate for background on block profiling.