Corrected the above expression by fixing node_disk_write_read_seconds_total
to node_disk_write_time_seconds_total:-
(rate( node_disk_read_time_seconds_total [5m]) +
rate(node_disk_write_time_seconds_total[5m]))/(rate(node_disk_reads_completed_total[5m])
+
Thanks for quick response. Few clarifications:-
1) Is below calculation is right to get equivalent of "system.io.await" ?
(rate( node_disk_read_time_seconds_total [5m]) +
rate(node_disk_read_time_seconds_total[5m]))/(rate(node_disk_reads_completed_total[5m])
+
Sorry, I have no idea what metrics Nginx exports or what Lua scripts in
Nginx can do.
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Brian,
Do you know if we can implement a Lua exporter within nginx who take
application's APM and report to prometheus?
Thank you.
Brian Candler wrote:
Just to add, the data collected by node_exporter maps closely to the raw
stats exposed by the kernel, so the kernel documentation is
Just to add, the data collected by node_exporter maps closely to the raw
stats exposed by the kernel, so the kernel documentation is helpful:
https://www.kernel.org/doc/Documentation/iostats.txt
https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
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You can calculate it from the basic IO metrics Prometheus provided.
Regards.
rsch...@gmail.com wrote:
In datadog I used metrics "system.io.await" to create alert on my
linux instances. What is the equivalent metrics in prometheus?
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In datadog I used metrics "system.io.await" to create alert on my linux
instances. What is the equivalent metrics in prometheus?
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