Hi folks, As you already know, Hadoop 2.3.0 release. While I'm reading the changes, I noted some new features that Tajo should consider.
Centralized cache management in HDFS - https://issues.apache.org/jira/browse/HDFS-4949 Ealier, Min mentioned cached table. In offline, I discussed HDFS-4949 with him. It may be a candidate feature for our goal. Enable support for heterogeneous storages in HDFS - DN as a collection of storages - https://issues.apache.org/jira/browse/HDFS-2832 It's for different storage medias like SSD and HDD. Add a directbuffer Decompressor API to hadoop - https://issues.apache.org/jira/browse/HADOOP-10047 We already use compression/decompression in text file. We also should adopt comp/decomp to other file formats. For that, HDFS-10047 may be a nice candidate feature to be used. - hyunsik
