Good stuff. New RC should be up soon. St.Ack
On Mon, Jan 3, 2011 at 4:30 PM, Todd Lipcon <[email protected]> wrote: > -1 for the following bugs: > > HBASE-3403 - Region orphaned if RS fails during split (stack and I working > on it) > HBASE-3344 - Master aborts after RPC to server that was shutting down (stack > fixed) > > But I feel like we're getting close! > > -Todd > > On Thu, Dec 23, 2010 at 3:43 PM, Stack <[email protected]> wrote: > >> The third hbase 0.90.0 release candidate is available for download: >> >> http://people.apache.org/~stack/hbase-0.90.0-candidate-2/ >> >> HBase 0.90.0 is the major HBase release that follows 0.20.0 and the >> fruit of the 0.89.x development release series we've been running of >> late. >> >> Over 1k issues have been closed since 0.20.0. Release notes are >> available here: http://su.pr/8LbgvK. >> >> HBase 0.90.0 runs on Hadoop 0.20.x. It does not currently run on >> Hadoop 0.21.0 nor on Hadoop TRUNK. HBase will lose data unless it is >> running on an Hadoop HDFS 0.20.x that has a durable sync. Currently >> only the branch-0.20-append branch [1] has this attribute (See >> CHANGES.txt [3] in branch-0.20-append to see the list of patches >> involved adding an append). No official releases have been made from >> this branch as yet so you will have to build your own Hadoop from the >> tip of this branch, OR install Cloudera's CDH3 [2] (Its currently in >> beta). CDH3b2 or CDHb3 have the 0.20-append patches needed to add a >> durable sync. If using CDH, be sure to replace the hadoop jars that >> are bundled with HBase with those from your CDH distribution. >> >> There is no migration necessary. Your data written with HBase 0.20.x >> (or with HBase 0.89.x) is readable by HBase 0.90.0. A shutdown and >> restart after putting in place the new HBase should be all thats >> involved. That said, once done, there is no going back to 0.20.x once >> the transition has been made. HBase 0.90.0 and HBase 0.89.x write >> region names differently in the filesystem. Rolling restart from >> 0.20.x or 0.89.x to 0.90.0RC1 will not work. >> >> Should we release this candidate as hbase 0.90.0? Take it for a spin. >> Check out the doc., etc. Vote +1/-1 by January 3rd, 2011. >> >> Yours, >> The HBasistas >> P.S. For why the version 0.90 and whats new in HBase 0.90, see slides >> 4-10 in this deck [4] >> >> 1. http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append >> 2. http://archive.cloudera.com/docs/ >> 3. >> http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append/CHANGES.txt >> 4. http://hbaseblog.com/2010/07/04/hug11-hbase-0-90-preview-wrap-up/ >> > > > > -- > Todd Lipcon > Software Engineer, Cloudera >
