Agree with Peter here. And if the file system and workload are of significant size then isolating the token manager to a dedicated node is definitely best practice.
Unfortunately there isn't a way to specify a preferred manager per FS... (Bryan starts typing up a new RFE...). Cheers, -Bryan From: gpfsug-discuss-boun...@spectrumscale.org <gpfsug-discuss-boun...@spectrumscale.org> On Behalf Of Peter Childs Sent: Tuesday, July 24, 2018 2:29 PM To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Subject: Re: [gpfsug-discuss] control which hosts become token manager Note: External Email ________________________________ What does mmlsmgr show? Your config looks fine. I suspect you need to do a mmchmgr perf node-1.psi.ch<http://node-1.psi.ch> mmchmgr tiered node-2.psi.ch<http://node-2.psi.ch> It looks like the node was set up as a manager and was demoted to just quorum but since its still currently the manager it needs to be told to stop. >From experience it's also worth having different file system managers on >different nodes, if at all possible. But that's just a guess without seeing the output of mmlsmgr. Peter Childs Research Storage ITS Research and Teaching Support Queen Mary, University of London ---- Billich Heinrich Rainer (PSI) wrote ---- Hello, I want to control which nodes can become token manager. In detail I run a virtual machine as quorum node. I don't want this machine to become a token manager - it has no access to Infiniband and only very limited memory. What I see is that 'mmdiag -tokenmgr' lists the machine as active token manager. The machine has role 'quorum-client'. This doesn't seem sufficient to exclude it. Is there any way to tell spectrum scale to exclude this single machine with role quorum-client? I run 5.0.1-1. Sorry if this is a faq, I did search quite a bit before I wrote to the list. Thank you, Heiner Billich [root@node-2 ~]# mmlscluster GPFS cluster information ======================== GPFS cluster name: node.psi.ch GPFS cluster id: 5389874024582403895 GPFS UID domain: node.psi.ch Remote shell command: /usr/bin/ssh Remote file copy command: /usr/bin/scp Repository type: CCR Node Daemon node name IP address Admin node name Designation -------------------------------------------------------------------------------- 1 node-1.psi.ch a.b.95.31 node-1.psi.ch quorum-manager 2 node-2.psi.ch a.b.95.32 node-2.psi.ch quorum-manager 3 node-quorum.psi.ch a.b.95.30 node-quorum.psi.ch quorum <<<< VIRTUAL MACHINE >>>>>>>>> [root@node-2 ~]# mmdiag --tokenmgr === mmdiag: tokenmgr === Token Domain perf There are 3 active token servers in this domain. Server list: a.b.95.120 a.b.95.121 a.b.95.122 <<<< VIRTUAL MACHINE >>>>>>>>> Token Domain tiered There are 3 active token servers in this domain. Server list: a.b.95.120 a.b.95.121 a.b.95.122 <<<< VIRTUAL MACHINE >>>>>>>>> -- Paul Scherrer Institut Science IT Heiner Billich WHGA 106 CH 5232 Villigen PSI 056 310 36 02 https://www.psi.ch ________________________________ Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential, or privileged information and/or personal data. If you are not the intended recipient, you are hereby notified that any review, dissemination, or copying of this email is strictly prohibited, and requested to 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. Personal data, as defined by applicable data privacy laws, contained in this email may be processed by the Company, and any of its affiliated or related companies, for potential ongoing compliance and/or business-related purposes. You may have rights regarding your personal data; for information on exercising these rights or the Company's treatment of personal data, please email datareque...@jumptrading.com.
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