Just depends on how your problem is detected… is it in a log? Is it found by running a command (.e.g mm*)? Is it discovered in `ps` output? Is your scheduler failing jobs?
We have ongoing monitoring of most of these types of problem detection points and an automated process to capture a trace could be added to trigger upon detection depending on how the problem is detected… -B From: gpfsug-discuss-boun...@spectrumscale.org [mailto:gpfsug-discuss-boun...@spectrumscale.org] On Behalf Of Oesterlin, Robert Sent: Tuesday, March 07, 2017 3:12 PM To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Subject: Re: [gpfsug-discuss] Potential problems - leaving trace enabled in over-write mode? I’ve been told that V70o0 unified nodes (GPFS under the covers) run with tracing enabled all the time.. but I agree with you Brian on the potential impacts. But when you must catch a trace for a problem that occurs once every few weeks – how else would I do it? Bob Oesterlin Sr Principal Storage Engineer, Nuance 507-269-0413 From: <gpfsug-discuss-boun...@spectrumscale.org<mailto:gpfsug-discuss-boun...@spectrumscale.org>> on behalf of Bryan Banister <bbanis...@jumptrading.com<mailto:bbanis...@jumptrading.com>> Reply-To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org>> Date: Tuesday, March 7, 2017 at 2:58 PM To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org>> Subject: [EXTERNAL] Re: [gpfsug-discuss] Potential problems - leaving trace enabled in over-write mode? I believe IBM recommends never running clusters with continuous tracing. ________________________________ Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you are hereby notified that any review, dissemination or copying of this email is strictly prohibited, and to please notify the sender immediately and destroy this email and any attachments. Email transmission cannot be guaranteed to be secure or error-free. The Company, therefore, does not make any guarantees as to the completeness or accuracy of this email or any attachments. This email is for informational purposes only and does not constitute a recommendation, offer, request or solicitation of any kind to buy, sell, subscribe, redeem or perform any type of transaction of a financial product.
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