Chapter 6. Known issues
This section documents known issues found in this release of Red Hat Ceph Storage.
6.1. Ceph Management Dashboard
The dashboard shows no data while the cluster is updating
Due to a known issue, the Red Hat Ceph Storage dashboard does not show any data while the cluster is updating.
6.2. Object Gateway
Invalid bucket names
There are some S3 bucket names that are invalid in AWS, and therefor cannot be replicated by the Ceph Object Gateway multisite. For more information about these bucket names, see the AWS documentation.
6.3. RADOS
Upgrading from Red Hat Ceph Storage 3 to 4 can cause Ceph Monitors to crash
Doing an upgrade from Red Hat Ceph Storage 3 to 4 can cause newer Ceph Monitors to send an incompatible message to older Ceph Monitors. This can cause older Ceph Monitors to crash while trying to read the incompatible message. To work around this issue, start all Ceph Monitors running Red Hat Ceph Storage 4. As a result, all Ceph Monitors will understand the new message.
