MapR Data Fabric for Kubernetes Release 1.1.0
These notes describe version 1.1.0 of the MapR Data Fabric for Kubernetes.
You may also be interested in the Kubernetes documentation.
| Version | 1.1.0 |
| Release Date | December 2018 |
| MapR Version Interoperability | Compatible with MapR 5.2.2 or
later. NOTE If
your installation requires MapR and Kubernetes software to coexist on the same
nodes, you must use one of these versions:
|
| OS Compatibility | The operating system (OS) on a node where the volume plug-in is installed must be a supported OS for the MapR version. For a list of supported OS versions, see Operating System Support Matrix. |
| Kubernetes Compatibility | Kubernetes 1.9
or
later. NOTE Kubernetes alpha features are not
supported. |
| MapR Software Downloads | MapR installation (.yaml) files are located here: https://package.ezmeral.hpe.com/tools/KubernetesDataFabric |
| Source on GitHub | This repository contains Docker images, installation files, and examples: https://github.com/mapr/KubernetesDataFabric |
| Docker Hub | Docker containers for the MapR installation files are located here: |
| Documentation | Kubernetes Interfaces for Data Fabric FlexVolume Driver Overview |
| Related Resources | https://mapr.com/solutions/data-fabric/kubernetes/ |
New in This Release
- Are installed with MapR software only (MapR 5.2.2 or later)
- Have both MapR software (MapR 6.1.0 or later) and Kubernetes software
This release of the MapR Data Fabric for Kubernetes includes a set of Docker containers and
their respective .yaml configuration files that can be installed onto a
Kubernetes cluster. Once installed, these containers provide a Kubernetes FlexVolume Driver
for file system and a Kubernetes Dynamic Volume Provisioner that
permit static and dynamic provisioning of MapR storage from Kubernetes.
To upgrade a previously installed version of the plug-in and provisioner to version 1.1.0, see Upgrading Data Fabric for Kubernetes.
Fixes
None.
Known Issues and Limitations
- Installations that require MapR and Kubernetes software to coexist on the same nodes
must use one of the following:
- Version 1.0.1 with MapR 6.0.1 or later
- Version 1.1.0 with MapR 6.1.0 or later
- All nodes in the Kubernetes cluster must use the same Linux OS. Configuration files
are available to support these Linux distributions:
- CentOS
- RedHat (use CentOS configuration file)
- SSE (use CentOS configuration file)
- Ubuntu
- Docker for Mac with Kubernetes is not supported as a development platform for containers used with the MapR Data Fabric for Kubernetes.
- Volume plug-in files are supported for:
- CentOS
- Ubuntu
- Microsoft Azure AKS
- Red Hat OpenShift**
- Google Kubernetes Engine (GKE)
- Amazon EKS is not supported.
- The Basic POSIX client package is included by default when you install the MapR Data Fabric for Kubernetes. The Platinum POSIX client can be enabled by specifying a parameter in the Pod spec. Only the POSIX client is supported. NFSv3 is not supported.
**OpenShift Origin is supported because it supports Kubernetes 1.9. The OpenShift Container Platform (formerly known as OpenShift Enterprise) can be used only if it supports Kubernetes 1.9 or later.
Resolved Issues
| Issue | Description |
|---|---|
| K8S-310 | Node restart causes the KDF driver to not update the volume mount. |
| K8S-315 | Version 1.1.0 uses the FUSE POSIX client included in MapR 6.1.0. |
| K8S-332 | On an upgrade from a previous version of the volume plug-in, POSIX can fail
with the following error in the POSIX log file: Create/Attach to stats
shared memory failed. |
| K8S-353 | Kubelet restart causes the existing volume mount to fail. |
| K8S-362 | Version 1.1.0 provides compatibility with MapR 6.1.0 or earlier volume attributes, as provided in the storage class. |
| K8S-399 | Version 1.1.0 provides ReadWriteMany support with the KDF volume driver. |