If you are in safe mode it's because not all datanodes have reported in. So actually NO your hadoop did NOT come up properly.
Check your nn pages, look for any missing nodes. It won't help you any more than telling you what is online or not. Good luck! -ryan On Thu, Mar 17, 2011 at 11:12 AM, Vishal Kapoor <vishal.kapoor...@gmail.com> wrote: > you should have more info on why dfs is in the safe mode in the logs, > you can always leave safe mode > > hadoop dfs -safemode leave > > but again, thats a symptom, not a problem. > > Vishal > > On Thu, Mar 17, 2011 at 1:55 PM, Taylor, Ronald C > <ronald.tay...@pnl.gov>wrote: > >> Folks, >> >> We had a power outage here, and we are trying to bring our Hadoop/HBase >> cluster back up. Hadoop has been just fine - came up smoothly. HBase has >> not. Our HBase master log file is filled with just one msg: >> >> 2011-03-17 10:50:08,712 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting >> for dfs to exit safe mode... >> 2011-03-17 10:50:18,714 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting >> for dfs to exit safe mode... >> >> After the power outage, before we tried bringing things back up, we took >> several nodes off-line, as their hard drives were failing and needed >> replacing. Don't know if the loss of those nodes has anything to do with the >> error msg that we are seeing. >> >> Could anybody give us some advice as to where to look for the cause of the >> HBase failure? We would very much appreciate guidance. >> >> Ron >> >> Ronald Taylor, Ph.D. >> Computatational Biology & Bioinformatics Group >> Pacific Northwest National Laboratory (U.S. Dept of Energy/Battelle) >> Richland, WA 99352 >> phone: (509) 372-6568 >> email: ronald.tay...@pnl.gov >> >> >> >
