- **Ceph Kernel Client**
- If you are using the kernel client, the general advice is to *track* "stable"
- or "longterm maintenance" kernel series provided by either http://kernel.org
- or your distribution on the kernel client machines.
+ If you are using the kernel client to map RBD block devices or mount
+ CephFS, the general advice is to use a "stable" or "longterm
+ maintenance" kernel series provided by either http://kernel.org or
+ your Linux distribution on any client hosts.
For RBD, if you choose to *track* long-term kernels, we currently recommend
- 4.x-based "longterm maintenance" kernel series:
+ 4.x-based "longterm maintenance" kernel series or later:
- - 4.9.z
- - 4.4.z
+ - 4.19.z
+ - 4.14.z
+ - 5.x
- These are considered pretty old, but if you must:
+ For CephFS, see the section about `Mounting CephFS using Kernel Driver`_
+ for kernel version guidance.
- - 3.16.z
- - 3.10.z
+ Older kernel client versions may not support your `CRUSH tunables`_ profile
+ or other newer features of the Ceph cluster, requiring the storage cluster
+ to be configured with those features disabled.
- For CephFS, see `CephFS best practices`_ for kernel version guidance.
-
- Older kernel client versions may not support your `CRUSH tunables`_ profile.
-
-- **B-tree File System (Btrfs)**
-
- If you use the ``btrfs`` file system with Ceph, we recommend using a
- recent Linux kernel (3.14 or later).
Platforms
=========
The charts below show how Ceph's requirements map onto various Linux
platforms. Generally speaking, there is very little dependence on
specific distributions aside from the kernel and system initialization
-package (i.e., sysvinit, upstart, systemd).
+package (i.e., sysvinit, systemd).
-Infernalis (9.2.z) and Jewel (10.2.z)
--------------------------------------
+Octopus (15.2.z)
+-----------------
+----------+----------+--------------------+--------------+---------+------------+
-| Distro | Release | Code Name | Kernel | Notes | Testing |
+| Distro | Release | Code Name | Kernel | Notes | Testing |
+==========+==========+====================+==============+=========+============+
-| CentOS | 7 | N/A | linux-3.10.0 | | B, I, C |
+| CentOS | 8 | N/A | linux-4.18 | | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-| Debian | 8.0 | Jessie | linux-3.16.0 | 1, 2 | B, I |
+| CentOS | 7 | N/A | linux-3.10.0 | 4, 5 | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| Fedora | 22 | N/A | linux-3.14.0 | | B, I |
+| Debian | 10 | Buster | linux-4.19 | | B |
++----------+----------+--------------------+--------------+---------+------------+
+| RHEL | 8 | Ootpa | linux-4.18 | | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
| RHEL | 7 | Maipo | linux-3.10.0 | | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C |
+| Ubuntu | 18.04 | Bionic Beaver | linux-4.15 | 4 | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
+| openSUSE | 15.2 | Leap | linux-5.3 | 6 | |
++----------+----------+--------------------+--------------+---------+------------+
+| openSUSE | | Tumbleweed | | | |
++----------+----------+--------------------+--------------+---------+------------+
+
-Hammer (0.94)
--------------
+Nautilus (14.2.z)
+-----------------
+----------+----------+--------------------+--------------+---------+------------+
-| Distro | Release | Code Name | Kernel | Notes | Testing |
+| Distro | Release | Code Name | Kernel | Notes | Testing |
+==========+==========+====================+==============+=========+============+
-| CentOS | 6 | N/A | linux-2.6.32 | 1, 2 | |
+| CentOS | 7 | N/A | linux-3.10.0 | 3 | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-| CentOS | 7 | N/A | linux-3.10.0 | | B, I, C |
+| Debian | 8.0 | Jessie | linux-3.16.0 | 1, 2 | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| Debian | 7.0 | Wheezy | linux-3.2.0 | 1, 2 | |
+| Debian | 9.0 | Stretch | linux-4.9 | 1, 2 | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| Ubuntu | 12.04 | Precise Pangolin | linux-3.2.0 | 1, 2 | |
+| RHEL | 7 | Maipo | linux-3.10.0 | | B, I |
+----------+----------+--------------------+--------------+---------+------------+
| Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-
-Firefly (0.80)
---------------
-
+| Ubuntu | 16.04 | Xenial Xerus | linux-4.4.0 | 3 | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-| Distro | Release | Code Name | Kernel | Notes | Testing |
-+==========+==========+====================+==============+=========+============+
-| CentOS | 6 | N/A | linux-2.6.32 | 1, 2 | B, I |
+| Ubuntu | 18.04 | Bionic Beaver | linux-4.15 | 3 | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-| CentOS | 7 | N/A | linux-3.10.0 | | B |
+| openSUSE | 15.1 | Leap | linux-4.12 | 6 | |
+----------+----------+--------------------+--------------+---------+------------+
-| Debian | 7.0 | Wheezy | linux-3.2.0 | 1, 2 | B |
+
+Luminous (12.2.z)
+-----------------
+
+----------+----------+--------------------+--------------+---------+------------+
-| Fedora | 19 | Schrödinger's Cat | linux-3.10.0 | | B |
+| Distro | Release | Code Name | Kernel | Notes | Testing |
++==========+==========+====================+==============+=========+============+
+| CentOS | 7 | N/A | linux-3.10.0 | 3 | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
-| Fedora | 20 | Heisenbug | linux-3.14.0 | | B |
+| Debian | 8.0 | Jessie | linux-3.16.0 | 1, 2 | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| RHEL | 6 | Santiago | linux-2.6.32 | 1, 2 | B, I, C |
+| Debian | 9.0 | Stretch | linux-4.9 | 1, 2 | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| RHEL | 7 | Maipo | linux-3.10.0 | | B, I, C |
+| Fedora | 22 | N/A | linux-3.14.0 | | B, I |
+----------+----------+--------------------+--------------+---------+------------+
-| Ubuntu | 12.04 | Precise Pangolin | linux-3.2.0 | 1, 2 | B, I, C |
+| RHEL | 7 | Maipo | linux-3.10.0 | | B, I |
+----------+----------+--------------------+--------------+---------+------------+
| Ubuntu | 14.04 | Trusty Tahr | linux-3.13.0 | | B, I, C |
+----------+----------+--------------------+--------------+---------+------------+
+| Ubuntu | 16.04 | Xenial Xerus | linux-4.4.0 | 3 | B, I, C |
++----------+----------+--------------------+--------------+---------+------------+
Notes
-----
-- **1**: The default kernel has an older version of ``btrfs`` that we do not
- recommend for ``ceph-osd`` storage nodes. Upgrade to a recommended
- kernel or use ``XFS``.
+- **1**: The default kernel has an older version of ``Btrfs`` that we do not
+ recommend for ``ceph-osd`` storage nodes. We recommend using ``BlueStore``
+ starting with Luminous, and ``XFS`` for previous releases with ``Filestore``.
- **2**: The default kernel has an old Ceph client that we do not recommend
for kernel client (kernel RBD or the Ceph file system). Upgrade to a
recommended kernel.
+- **3**: The default kernel regularly fails in QA when the ``Btrfs``
+ file system is used. We recommend using ``BlueStore`` starting from
+ Luminous, and ``XFS`` for previous releases with ``Filestore``.
+
+- **4**: ``btrfs`` is no longer tested on this release. We recommend
+ using ``bluestore``.
+
+- **5**: Some additional features related to dashboard are not available.
+
+- **6**: Packages are built regularly, but not distributed by upstream Ceph.
Testing
-------
- **B**: We build release packages for this platform. For some of these
- platforms, we may also continuously build all ceph branches and exercise
+ platforms, we may also continuously build all Ceph branches and perform
basic unit tests.
- **I**: We do basic installation and functionality tests of releases on this
.. _CRUSH Tunables: ../../rados/operations/crush-map#tunables
-.. _CephFS best practices: ../../cephfs/best-practices
+.. _Mounting CephFS using Kernel Driver: ../../cephfs/mount-using-kernel-driver#which-kernel-version
projects / ceph.git / blobdiff