I have created HBASE-7930 for that. I have done the patch for 0.94 and build is in progress. I will test it and do the patch for trunk if tests are successful.
JM 2013/2/25 Jean-Marc Spaggiari <[email protected]> > > Ok. Document a JIRA and take a look at hbck to add that. > > JM > > > 2013/2/25 Ted Yu <[email protected]> >> >> I think hbck should be enhanced to deal with this situation. >> >> On Mon, Feb 25, 2013 at 6:56 AM, Jean-Marc Spaggiari < >> [email protected]> wrote: >> >> > Hi Dave, >> > >> > Thanks for the details. >> > >> > Is it something that we should think about adding into HBCK? >> > >> > Seems that it can detect them "Number of empty REGIONINFO_QUALIFIER rows in >> > .META.: 6" but it's not fixing them nor listing them. >> > >> > JM >> > >> > 2013/2/25 ramkrishna vasudevan <[email protected]> >> > >> > > 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 >> > > > > >> > > > >> > > >> > > >
