Thanks for the info Dave. Others will be benefited too. Regards Ram
On Mon, Feb 25, 2013 at 7:25 PM, Dave Latham <[email protected]> wrote: > We recently saw some of these warnings in a cluster we were setting up. > These warnings mean there are rows in the META table that are missing one > of the expected columns. In our case, we verified that these regions > didn't appear to exist in HDFS either and the table itself showed no holes > or problems in hbck or via our application. After looking at the > timestamps of the other data in these rows in META we determined that the > remaining columns in META had been written on an earlier incarnation of a > table with the same name. I.e. we created a table once, put data in it, > deleted the table, created a new table of the same name, and apparently not > everything was correctly deleted from META. I'm not sure how that > happened, but to clean it up we manually removed those rows from META and > didn't observe any more WARNings or problems afterward. There's another > mailing list thread from some months back from someone with a similar issue > and resolution. Good luck! > > Dave > > > On Sun, Feb 24, 2013 at 5:03 PM, Jean-Marc Spaggiari < > [email protected]> wrote: > > > Hi, > > > > I'm wondering, how much should we worrie about those warnings: > > WARN org.apache.hadoop.hbase.master.CatalogJanitor: REGIONINFO_QUALIFIER > is > > empty in keyvalues={ > > > > I have 6 of them show each time the CatalgoJanitor is running (5 > minutes). > > > > Doesn't seems to really be an issue, but then why is it a WARN? > > > > Thanks, > > > > JM > > >
