What happens if we are using buffered_io and the machine restared due to some power failure? Everything that was in the cache will be lost or how ceph handle this? Istvan Szabo Senior Infrastructure Engineer --------------------------------------------------- Agoda Services Co., Ltd. e: istvan.szabo@xxxxxxxxx<mailto:istvan.szabo@xxxxxxxxx> --------------------------------------------------- From: Szabo, Istvan (Agoda) Sent: Friday, May 14, 2021 3:21 PM To: 'Konstantin Shalygin' <k0ste@xxxxxxxx> Cc: ceph-users@xxxxxxx Subject: RE: [Suspicious newsletter] Re: bluefs_buffered_io turn to true When this stop 😃 ? When died … :D Istvan Szabo Senior Infrastructure Engineer --------------------------------------------------- Agoda Services Co., Ltd. e: istvan.szabo@xxxxxxxxx<mailto:istvan.szabo@xxxxxxxxx> --------------------------------------------------- From: Konstantin Shalygin <k0ste@xxxxxxxx<mailto:k0ste@xxxxxxxx>> Sent: Friday, May 14, 2021 3:00 PM To: Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx<mailto:Istvan.Szabo@xxxxxxxxx>> Cc: ceph-users@xxxxxxx<mailto:ceph-users@xxxxxxx> Subject: Re: [Suspicious newsletter] Re: bluefs_buffered_io turn to true On 14 May 2021, at 10:50, Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx<mailto:Istvan.Szabo@xxxxxxxxx>> wrote: Is it also normal if this buffered_ioturned on, it eats all the memory on the system? Hmmm. This is what actually do this option - eat all free memory as cached for bluefs speedups k ________________________________ This message is confidential and is for the sole use of the intended recipient(s). It may also be privileged or otherwise protected by copyright or other legal rules. If you have received it by mistake please let us know by reply email and delete it from your system. It is prohibited to copy this message or disclose its content to anyone. Any confidentiality or privilege is not waived or lost by any mistaken delivery or unauthorized disclosure of the message. All messages sent to and from Agoda may be monitored to ensure compliance with company policies, to protect the company's interests and to remove potential malware. Electronic messages may be intercepted, amended, lost or deleted, or contain viruses. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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