Server management limitations
Here are some of the server management guidelines that you should consider before implementing Kudu.
-
Production deployments should configure a least 4 GiB of memory for tablet servers, and ideally more than 16 GiB when approaching the data and tablet scale limits.
-
Write ahead logs (WALs) can only be stored on one disk.
-
Data directories cannot be removed. You must reformat the data directories to remove them.
-
Tablet servers cannot be gracefully decommissioned.
-
Tablet servers cannot change their address or port.
-
Kudu has a hard requirement on having an up-to-date NTP. Kudu masters and tablet servers will crash when out of sync.
-
Kudu releases have only been tested with NTP. Other time synchronization providers such as Chrony may not work.
