Thanks for the comments, Going to work on it tomorrow - I'll keep you updated. Ophir
On Wed, May 11, 2011 at 8:01 PM, Stack <[email protected]> wrote: > On Wed, May 11, 2011 at 6:14 AM, Ophir Cohen <[email protected]> wrote: > > My results from today's researches: > > > > I tried to delete region as Stack suggested: > > > > 1. *close_region* > > 2. Remove files from file system. > > 3. *assign* the region again. > > > > Try inserting something into that region and then getting it back out. > Flush it explicitly . See that a file is added to hdfs. Again get > the result back out. That'll tell you for sure if it works. > Tried that already - and got the results back. Going to try it tomorrow with bigger size of data. > > > 1. Can I split a region by a specific key? It looks that it split > > automatically. > > You can pass a key in the UI and in shell. If the key exists, I > believe it will split on the passed key (You should confirm). If the > key does not exist, it'll split on the closest. > In the web page just state that it'll be on the region that this key exists on. I'll try to trace it in the code as it seems not to work right now. > > > > 2. It seems that splitting from command line does not work... I get the > > message in the log but nothing really happened. Actually in the code it > > stated that it triggered compaction and that should be enough (????). > > > This sounds like a bug. The UI uses same code path so bug is probably > in it too. We might have to do some fixing herein. Want to try > tracing where it goes awry? > I'll trace it out and let know. I'll file a bug if needed... And yes, it does not work not from the page nore from shell. > > > > 3. Is there a way to choose my method of region splitting? I think it > can > > be a great option - way to state when and how region is splitted... > > > > No. Its the size of the biggest store file that determines when we > split. Its not currently pluggable. But its a good idea (File an > issue?). I'm not sure if coprocessors have influence over when a > split runs. > > OK. I'll see - it looks like a nice feature. For me it'll be exactly what I need - I'll split it by customers. > FYI, split check happens after compaction check. That might be why > you see the compaction message in the above though you invoked a > split. > Yep that exaplain it. The comments in the code also stated that compaction is enough for making the split happend (and then the split isn't happen :() > > St.Ack >
