Improved mbrestore script to handle backups from different methods
Bug in ketama hashing algorithm. Note that this will potentially change the key->server hashing for items in memcached-type buckets. It is advised not to run with either Membase server nodes or Moxi processes of mixed versions.
Moxi used to use "Out of Memory" for any error. This has been resolved.
Added button to "flush" memcached buckets
Rebalance failed to restart after stopping
Moxi will now ignore invalid nodes of a cluster that it is connected to
OSS Couldn't join cluster with hostname on Windows
Enhancements to bucket deletion code
Erlang bug made the Membase UI break with certain timezones
rpm -U doesn't restore data files after upgrade to 1.7.0
Workaround: Need to re-create a symlink as per the 1.7.0 upgrade instructions
Membase fails to run on Windows system with PGP (http://www.pgp.com) installed
Workaround: Uninstall PGP on any systems running Membase
TAP doesn't handle "garbage" data/messages over a dump connection
Unsynchronized clocks can lead to UI not displaying graphs
Workaround: Make sure all the clocks (and their timezones) are synchronized in a Membase cluster. Best to use NTP or some other synchronization technology
Can't edit size of Memcached bucket type
Linux installer tries to start (and fails) "membase-server"
Workaround: Another benign warning
Memcached process is not shutdown quickly with a high disk write queue
Workaround: Make sure your disk write queue is as low as possible (or 0) before shutting down the service
Membase-Server does not start on windows 2003 after successful installation
Workaround: Need to install vc redistributable (8.0.59193) on the system
Windows upgrade failed from 1.6.0 to 1.7.0
Workaround: Workaround is to follow upgrade instructions from 1.6.0 to 1.6.5 and then 1.6.5 to 1.7.0
Multi-get can return multiple values during rebalance
Need better error reporting when trying to run binary as root.
Workaround: Do not run as the root user. Note that this is not the same as installing, which needs to be done by root.
Known issues when Membase runs out of disk space
Workaround: Monitor your system resources closely and ensure that the Membase nodes don't run out of disk space
Known issues with 'flush_all' against Membase-type buckets
Workaround: 'flush_all' is not currently supported for Membase buckets due to some known issues. It should not be used in a production environment and the "flush" button is not available via the GUI for this reason
Known issues with membase-server (re)starting
Workaround: When a process is killed or dies, mnesia files might be left in a poor state that prevents restart.
MB-3333 MBS Network Filesystems (CIFS/NFS) are not supported for data file storage. Block-based storage (iSCSI,EBS, etc) should be fine
mbrestore sometimes shows benign python interrupt error.
Workaround: This should only happen at the very end of the restore and does not affect the data being inserted
Ubuntu 8.x is unsupported
Some known issues when rebalancing with a very high ratio of data on disk versus data in RAM
Workaround: Workaround is to use more nodes than less to better distribute the on-disk data
memory utilization is not accounted for correctly in certain situations
Workaround: Workaround is to set the memory quota (either bucket or server level) lower than normal to prevent any swap usage
Can't add 1.7.0 node to 1.6.x cluster
Workaround: Rolling upgrades are not currently supported from 1.6.x to 1.7.0. Use the in-place upgrade instructions.
UDP access blocked by malformed request
Amazon "micro" and "small" instances are not supported
Workaround: It is a best practice to use at least "large" instances to provide enough RAM for Membase to run
Large changes in wall-clock time negatively affect disk persistence ability and GUI display
Workaround: Use NTP to keep systems synchronized and start Membase service after such synchronization has taken place
TAP stats sometimes show up as negative
'ejectNode' is possibly dangerous to active servers
Workaround: Only use 'ejectNode' on nodes not currently responsible for any vbuckets