Let me also stress this point, no way can the namenode swap. The zookeeper processes also require a highly responsive io channel (think dedicated or non loaded disk).
If the regionservers start to swap you also risk serious problems. You wouldn't force oracle or mysql to swap, so don't force hbase and hdfs to swap! On Oct 7, 2009 11:27 AM, "Andrew Purtell" <[email protected]> wrote: You can't allow swapping. - Andy ________________________________ From: Lucas Nazário dos Santos <nazario.lu...@gmail.... Sent: Wed, October 7, 2009 10:05:44 AM Subject: Re: HBase crashed: FATAL HMaster: Shutting down HBase cluster: file system not available There was an exception in the namenode log by the time HBase crashed (see bellow). Anyway, machine...
