Hi all, I've got some good news that I figured I'd post to the list! Today I added a bunch of htrace integrating to HDFS, in https://issues.apache.org/jira/browse/HDFS-7189. This patch adds tracing for a whole host of DFS client operations, such as rename and delete.
Obviously this will be helpful for HDFS users, and it should also increase our ability to follow HBase operations all the way back into HDFS via HTrace-- for example when HBase is deleting or moving a WAL, etc. The last big piece of HTrace integration for HDFS is integration into the output stream (i.e. the write path). This should be coming soon, so stay tuned. cheers, Colin
