Could be having some "force" flag specified 3 times and asked for confirmation as well, but I like this feature. Whenever I talk to people who disable and get stuck it was to prepare a subsequent drop table call. So this sounds really useful given enough safety latches in place.
Lars On Thu, Feb 17, 2011 at 1:50 AM, Jean-Daniel Cryans <[email protected]> wrote: > Actually I never thought of having a special case for that... and I > don't see any jira about it. Would you mind opening a new one for > that, I think it's a good idea for those times when you're developing > something and you want to iterate fast. > > On the other hand, it's a pretty destructive feature so some people > might disagree with having it in the codebase :) > > J-D > > On Wed, Feb 16, 2011 at 4:26 PM, Nanheng Wu <[email protected]> wrote: >> Actually I wanted to disable the table so I can drop it. It would be >> nice to be able to disable the table without flushing memstore. It's >> not possible in 0.20.6 is it? >> >> On Wed, Feb 16, 2011 at 2:30 PM, Jean-Daniel Cryans <[email protected]> >> wrote: >>> To disable a region, it's memstore must first be flushed. That's done >>> sequentially for all regions that must be disabled inside a table. >>> There's not really a way around it unless you don't need that data. >>> >>> If you're planning to disable a table but at the same time need it to >>> be unavailable for the shortest time possible, I recommend calling a >>> flush on the table from the shell first and then some time later doing >>> the disable. How much later you ask? Well there's currently no easy >>> way to tell, I usually just tail any region server log file until I >>> see they're done. >>> >>> J-D >>> >>> On Wed, Feb 16, 2011 at 2:21 PM, Nanheng Wu <[email protected]> wrote: >>>> From time to time I run into issues where disabling a table pretty >>>> much hangs. I am simply calling the disableTable method fo HBaseAdmin. >>>> The table has ~ 500 regions with default region file size. I couldn't >>>> tell anything abnormal from the master's log. When I click on the >>>> region from Master's web UI I get the "RegionOfflineException". I am >>>> using HBase 0.20.6 + Hadoop 0.20.2. My cluster has ~10 nodes with one >>>> node running Master/ZK/NameNode. Can someone help me understand what's >>>> wrong? Thanks! >>>> >>> >> >
