I don't know details about Kristoffer's schema. If all the column qualifiers are known a priori, mutateRow() should serve his needs.
HBase allows arbitrary number of columns in a column family. If the schema is dynamic, mutateRow() wouldn't suffice. If the column qualifiers are known but the row is very wide (and a few columns are updated per call), performance would degrade. Just some factors to consider. Cheers On Fri, Apr 19, 2013 at 1:41 PM, Mohamed Ibrahim <mibra...@mibrahim.net>wrote: > Actually I do see it in the 0.94 JavaDocs ( > > http://hbase.apache.org/0.94/apidocs/org/apache/hadoop/hbase/client/HTable.html#mutateRow(org.apache.hadoop.hbase.client.RowMutations) > ), > so may be it was added in 0.94.6 even though the jira says fixed in 0.95 . > I haven't used it though, but it seems that's what you're looking for. > > Sorry for confusion. > > Mohamed > > > On Fri, Apr 19, 2013 at 4:35 PM, Mohamed Ibrahim <mibra...@mibrahim.net > >wrote: > > > It seems that 0.95 is not released yet, mutateRow won't be a solution for > > now. I saw it in the downloads and I thought it was released. > > > > > > On Fri, Apr 19, 2013 at 4:18 PM, Mohamed Ibrahim <mibra...@mibrahim.net > >wrote: > > > >> Just noticed you want to delete as well. I think that's supported since > >> 0.95 in mutateRow ( > >> > http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HTable.html#mutateRow(org.apache.hadoop.hbase.client.RowMutations)). > >> You can do multiple puts and deletes and they will be performed > atomically. > >> So you can remove qualifiers and put new ones. > >> > >> Mohamed > >> > >> > >> On Fri, Apr 19, 2013 at 3:44 PM, Kristoffer Sjögren <sto...@gmail.com > >wrote: > >> > >>> What would you suggest? I want the operation to be atomic. > >>> > >>> > >>> On Fri, Apr 19, 2013 at 8:32 PM, Ted Yu <yuzhih...@gmail.com> wrote: > >>> > >>> > What is the maximum number of versions do you allow for the > underlying > >>> > table ? > >>> > > >>> > Thanks > >>> > > >>> > On Fri, Apr 19, 2013 at 10:53 AM, Kristoffer Sjögren < > sto...@gmail.com > >>> > >wrote: > >>> > > >>> > > Hi > >>> > > > >>> > > Is it possible to completely overwrite/replace a row in a single > >>> _atomic_ > >>> > > action? Already existing columns and qualifiers should be removed > if > >>> they > >>> > > do not exist in the data inserted into the row. > >>> > > > >>> > > The only way to do this is to first delete the row then insert new > >>> data > >>> > in > >>> > > its place, correct? Or is there an operation to do this? > >>> > > > >>> > > Cheers, > >>> > > -Kristoffer > >>> > > > >>> > > >>> > >> > >> > > >
