bq. upgrade to 0.94.6 Nit: upgrade to 0.94.6.1 (or 0.94.9 which was just released)
Cheers On Wed, Jul 10, 2013 at 6:04 PM, Sergey Shelukhin <ser...@hortonworks.com>wrote: > Yeah, this is not going to work... moving storefiles manually between > regions is generally not a good idea. > Do you want to move entire table into new table? Then the best thing is > probably to upgrade to 0.94.6 (rolling restart is supported from 0.94.3) > and use HBase snapshots. You can use export table w/o upgrading. > If you want to merge into existing table I'm not really sure what is the > best way to do that. You might have to rewrite data with target region > boundaries, or manually split and merge regions accordingly and run > compactions. Then you can disable the table, copy the files and bulk load > them into target cluster. See > http://hbase.apache.org/book/arch.bulk.load.html > Note that bulk load requires boundaries that fit within one region > (matching or sub-range). There may be a tool that solves this but I'm not > aware of it... > > > On Wed, Jul 10, 2013 at 5:40 PM, Bing Jiang <jiangbinglo...@gmail.com > >wrote: > > > Thanks,Sergey. > > These days, I want to move a table from one hbase cluster to another > hbase > > cluster, and there are the same table's schema. > > So I want to move a region's storefile to another table's region > > corresponding directory, and the key bound of regions are overlapped. > > For example: > > Cluster | Table | Region's key bound > > cluster1 | dat | [1ffff,2ffff] > > cluster2 | dat | [2bfff,31fff] > > > > In my opinion , if region files in cluster2 are move into cluster1's > > regions, and make compaction（Minor && Major） upon the first region, it > will > > prune the improper key in (2ffff,31fff]. > > However I found hbase compaction cannot support that. > > > > Any idea would be thankful. > > > > > > 2013/7/11 Sergey Shelukhin <ser...@hortonworks.com> > > > > > You should not have to manually take care of region bounds in normal > > > circumstances (unless you are reading the file from coprocessor in some > > > special way, or something like that). Please tell us if you are seeing > > any > > > strange behavior :) > > > See HalfStoreFileReader for the code that is used to read the > referenced > > > file and constrains the keys. > > > > > > On Wed, Jul 10, 2013 at 4:25 AM, Bing Jiang <jiangbinglo...@gmail.com > > > >wrote: > > > > > > > Hi,all > > > > > > > > If Region process splits, it will make a reference.After executing > > child > > > > region makes a compaction that absorbs all the reference. And I have > a > > > > question that how to make differences when executes scanner. > > > > As we know that Compaction uses the scanner as well, so whether to > set > > > the > > > > startKey and endKey of child region's bound, in order to guarantee > that > > > the > > > > storefile in child region will not contain outlier keys? I cannot > find > > > code > > > > to prove it, BTW, we use 0.94.3. > > > > > > > > Thanks. > > > > > > > > -- > > > > Bing Jiang > > > > weibo: http://weibo.com/jiangbinglover > > > > BLOG: http://blog.sina.com.cn/jiangbinglover > > > > National Research Center for Intelligent Computing Systems > > > > Institute of Computing technology > > > > Graduate University of Chinese Academy of Science > > > > > > > > > > > > > > > -- > > Bing Jiang > > Tel：(86)134-2619-1361 > > weibo: http://weibo.com/jiangbinglover > > BLOG: http://blog.sina.com.cn/jiangbinglover > > National Research Center for Intelligent Computing Systems > > Institute of Computing technology > > Graduate University of Chinese Academy of Science > > >
