Hi there, Please find below the DAOS community newsletter for September 2021. Upcoming Events 5th EAGE workshop on HPC for Upstream (September 6-8) Leveraging DAOS file system for seismic

Hi Chengfeng, Good catch and thanks for the patch! Cheers, Johann From:<daos@daos.groups.io> on behalf of "cyeaa@..." <cyeaa@...> Reply-To: "daos@daos.groups.io"

Hi developers, I am about to report a protential bug, but I couldn't get access to the issue tracker in this site https://daosio.atlassian.net . I just put the description here, and thanks a lot if

Hi Kevin, Thank you very much for your response! I'll test it on my environment. Thank you, --- Shohei

Shohei, my understanding is that the current implementation assumes you have servers with the same configuration, so if for example, rank0 and rank1 have 5 targets each with 10GB, when you add

Hi Kevin, Thanks for your reply. I noted. Maybe I'm missing something here, but does this lead us to expanding the size of an existing pool? For example, let's say we have a pool with uuid=puuid and

Shohei, you can add additional servers, see this in the manual: https://docs.daos.io/admin/pool_operations/#pool-extension kevin ________________________________________ Sent: Saturday, August

Hello DAOS developers and users I am trying to start a DAOS server with real SCM and NVme Devices. After formating the storage device,the server complain "instance 0 exited: failed to start system db:

DAOS uses two-phase commit to ensure consistency between replicas. According to "src/vos/readme.md", read requests can be sent to any replica, but if this replica server has a network partition（the

Hi, I have a question about expanding the size of existing pools online in DAOS v1.2? Is there any way to do it? Thank you, --- Shohei

Hi Eeheet, You can use the fio DAOS engine (https://daos-stack.github.io/devbranch/admin/performance_tuning/#fio). If you want to stick to dfuse, then I would advise to use the posixaio engine

Hi, The DFS layer does not track openers, so the other client will be able to proceed and delete the file. The original opener will thus suddenly see an empty file. Please note that if the two

Hi, I’m an intern on the HPC team, and I’m trying to increase the performance of FIO on my server (wolf-169), admin/client (wolf-57). I attached a screencap of what I’m currently getting and

While a file is opened by one client, can other clients delete the file? If it cannot be deleted, how is this guaranteed? Thanks~

Hi Peter, A few things to try/explore: I don’t think that we have ever tested with 2x pmem DIMMs per socket. Maybe you could try with dram instead of pmem to see whether the performance

Hi Lipeng, Assuming that you are using 1.2, you can create a POSIX container with the daos utility: $ daos cont create --pool <POOL_UUID> --type POSIX You get back a container UUID that you

Try running the utils/setup_daos_admin.sh script as sudo. The admin binary should be moved to /usr/bin/ with setuid. Remove executable bit from install/bin/daos_admin. These steps are performed

What are the manual steps? I tried using setuid and checking immutable bit, but I still get the privileged helper (daos_admin) does not have root permissions, e.g., # chmod u+s

Thank you for the reply, Yes, I have mounted the Optane modules as an ext4 filesystem; a quick FIO test is able to achieve > 1 MIOPs. My thought was that it would be network related, however I've

Hi, Have you tried benchmarking the hardware directly, rather than through DAOS? i.e. running some benchmarks just on an ext4 filesystem mounted on the Optane on a single node. Just to check that