On Fri, 5 Jun 2020 at 01:19, Cameron Kerr <[email protected]> wrote:
> > > On Friday, 5 June 2020 05:20:55 UTC+12, Harald Koch wrote: >> >> On Thu, Jun 4, 2020, at 08:10, Cameron Kerr wrote: >> >> You should be sure to use the whitelist and blacklist features; browse >> the available mbean objects using jconsole or similar to find just the bits >> you will be interested in, and then query only those. >> >> >> But that's my point - the JMX exporter queries all of your mbeans and >> only then filters the results using the lists. So you'll still get the >> problems you mention; locks, db queries, and so on. >> > > True, the default configuration is unhelpful (harmful even) in that it > grabs everything, and the provided examples should do a better job of > showing something more production-ready. The whitelistObjectNames and > blacklistObjectNames are the bits that limit what is actually grabbed, and > then the rules kick in to affect the transformation into metrics for > prometheus. > PRs to improve the example configs are welcome. The usual challenge is that the expensive mBeans are usually also the ones with the key metrics. Brian > > Even then, the white/blacklistObjectNames only apply to the MBean object > itself, and not to individual Attributes, which raise its own, similar > issues. (eg. if I want to monitor a thread pool I might just be interested > in the current usage, rather than the status of every thread). > > >> (Also this is an 8-month old thread :) >> > > I realised; my reply for largely for the benefit of people who might find > this in a search, as this is not yet well documented. > > Cheers, > Cameron > > -- > You received this message because you are subscribed to the Google Groups > "Prometheus Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/prometheus-users/25c13f1f-b96d-4a4f-9cb6-80aaafa984b5o%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-users/25c13f1f-b96d-4a4f-9cb6-80aaafa984b5o%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Brian Brazil www.robustperception.io -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/CAHJKeLoHkm-8W9cQCk60XOAiEVBSPbDAKKAdQxkxjfAK6pKSpQ%40mail.gmail.com.
