There is a two tools that can try to help you (unfortunately, I haven't written the user documentation for either yet)
One is called OfflineMetaRepair. This assumes that hbase is offline reads the data in HDFS to create a new ROOT and new META. If you data is in good shape, this should work for you. Depending on which version of hadoop you are using, you may need to apply HBASE-5488. On the latest branches of hbase (0.90/0.92/0.94/trunk) the hbck tool has been greatly enhanced and may be able to help out as well once an initial META table is built, and your hbase is able to get online. This will currently will require a patch HBASE-5781 to be applied to be useful. Jon. On Sat, Apr 14, 2012 at 1:35 PM, Yabo Xu <arber.resea...@gmail.com> wrote: > Hi all: > > Just had a desperate night....We had a small production hbase cluster( 8 > nodes), and due to the accident crash of a few nodes, ROOT and META are > corrupted, while the rest of tables are mostly there. Are there any way to > restore ROOT and META? > > Any of the hints would be appreciated very much! Waiting on line... > > Best, > Arber > -- // Jonathan Hsieh (shay) // Software Engineer, Cloudera // j...@cloudera.com
