Thanks. I'll merge these this this afternoon. -Todd
On Thu, Jun 7, 2012 at 4:25 PM, Eli Collins <e...@cloudera.com> wrote: > +1 > > Will be great to have the direct read optimization (thanks Henry) in 2.x. > > Thanks, > Eli > > On Thu, Jun 7, 2012 at 2:51 PM, Todd Lipcon <t...@cloudera.com> wrote: >> Hi all, >> >> I plan to merge the following JIRAs to branch-2 this week unless there >> are any objections: >> >> "Direct read" optimization: >> >> 6e51b33 HADOOP-8135. Add ByteBufferReadable interface to >> FSDataInputStream. Contributed by Henry Robinson. >> 4418682 HADOOP-8244. Improve comments on ByteBufferReadable.read. >> Contributed by Henry Robinson. >> c66f982 HDFS-2834. Add a ByteBuffer-based read API to DFSInputStream. >> Contributed by Henry Robinson. >> 467acd1 HDFS-3110. Use directRead API to reduce the number of buffer >> copies in libhdfs. Contributed by Henry Robinson. >> >> These improvements give a substantial savings in CPU to applications >> using libhdfs, and have some potential for usage in apps like HBase >> and MR as well. >> >> MiniDFSClusterManager: >> bfa5c0a HDFS-3167. CLI-based driver for MiniDFSCluster. Contributed by >> Henry Robinson. >> 21dfa6a HDFS-3235. MiniDFSClusterManager doesn't correctly support >> -format option. Contributed by Henry Robinson. >> >> These test-only improvements make it easier to construct system tests >> against realistic pseudo-distributed clusters. >> >> All of the above patches have been baking in trunk for quite some time. >> >> Thanks >> -Todd >> -- >> Todd Lipcon >> Software Engineer, Cloudera -- Todd Lipcon Software Engineer, Cloudera
