Hi,

Since 31-Mar-2022[1] Ceph Reef packages for 9Stream were intended (planned) to be built with EPEL, including using EPEL for runtime. Apache Arrow (libarrow, parquetlibs, et. al.) were packaged in EPEL9 on 08-Jun-2022[2]. Pre-release builds of Ceph Reef (18.1.x) were built in CBS and released to testing repos starting 14-Jun-2023[3]. The first GA build of Ceph Reef (18.2.0) was built and released on 04-Aug-2023[4]

The Arrow packages were available in EPEL well in advance of the release of Ceph Reef and it's evident that my intention was always to use EPEL. (Many people wanted to use EPEL, but found that there were incompatible discrepancies between the packages in EPEL and in CBS. Hence the decision to only use EPEL and stop providing dependencies in CBS.)

Yes, libarrow 9 does exist in CBS for 9Stream, possibly for Ceph Quincy, TBH I don't remember. It was never intended to be used by Ceph Reef. I don't know, nor do I remember, how it got tagged into Ceph Reef builds. It was obviously a mistake. I'm sorry it wasn't discovered earlier.

Ceph Reef (18.2.y), Ceph Squid (19.2.y), and soon Ceph Tentacle (20.x.y) all require EPEL.

If requiring EPEL doesn't work for you, I'm sorry.

[1] https://pagure.io/centos-infra/issue/725

[2] https://koji.fedoraproject.org/koji/buildinfo?buildID=1977931

[3] https://cbs.centos.org/koji/buildinfo?buildID=44367

[4] https://cbs.centos.org/koji/buildinfo?buildID=50233

On Mon, Jun 16, 2025 at 4:57 PM Tobias Urdin - Binero <tobias.urdin@binero.com> wrote:

Hello,

Just so that I understand it correctly, EPEL 9 is now required to use Storage SIG

packaged Ceph and is not expected (nor intended) to work without EPEL?

I wonder if it’s just tagging thrift 0.15.0 [1] with storage9s-ceph-reef-* tags that

is missing and rebuilding libarrow for parquet-libs to use that would be something

that could be done?

/Tobias

[1] https://cbs.centos.org/koji/buildinfo?buildID=50735

[2] https://cbs.centos.org/koji/buildinfo?buildID=40573

On 16 Jun 2025, at 22:03, Kaleb Keithley <kkeithle@redhat.com> wrote:

On Thu, Jun 12, 2025 at 4:45 AM Tobias Urdin - Binero <tobias.urdin@binero.com> wrote:

Hello,

We’ve always been able to install Storage SIG built Ceph packages without using EPEL9 but

when we are testing with the Reef release it looks like we need a newer libarrow that hasn’t

been rebuild in Storage SIG since newer thrift 0.15 was introduced.

Up until ceph-quincy or so on el8s and el9s epel was not used because CBS did not allow external repos like EPEL to be used.

When external repos like EPEL were added I switched from using dependencies built in CBS, including (lib)arrow and parquet-libs, to using the EPEL versions. Looks like I didn't get ceph-18.2.7 completely untangled.

I just respun ceph-18.2.7 using only EPEL for dependencies. Everything I tried, including librgw2, installs on my Stream9 box.

The new build is on some mirrors already, ymmv.

--

Kaleb