2010/8/16 Samuru Jackson <[email protected]>: > Hi, > > I have two question regarding the usage of columns within a family: > > 1. Is there any limitation about the number of columns inside a column > family associated to a row (i.e. maximum number of columns)?
Wide family can have poor scalability, because table splits on key ranges. If you will have very wide family it will live on 1 region server and doesnt' slit. Another drawback - if you you want to take some range of values hbase will scan whole row, in opposite to keys. With compound keys you can use scan to get range of values. > 2. Is there any pagination possible for columns? If I have a huge > number of columns for a row I don't want to retrieve all of them at > once, but paging through them. Only in trunk. https://issues.apache.org/jira/browse/HBASE-1537 > > Thanks > > /SJ >
