It seems we've broken the compilation with h2.2.x and 2.3.x: https://issues.apache.org/jira/browse/HBASE-12246
Our hadoop compatibility matrix currently states that we are compatible, but earlier versions are not tested as much. Still might be enough to sink the RC. Enis On Mon, Oct 13, 2014 at 10:58 AM, Enis Söztutar <[email protected]> wrote: > I would say it is not critical enough to sink the current RC. > > Enis > > On Mon, Oct 13, 2014 at 10:39 AM, Stack <[email protected]> wrote: > >> Reading the issue, there is no description of what the implications are >> not >> fixing HBASE-12237. It is marked critical but with no justification as to >> why (HBASE-11118 is a fix for a relatively exotic deploy type). >> >> IMO, no need of a new RC, especially on a dev release. >> >> St.Ack >> >> On Mon, Oct 13, 2014 at 10:31 AM, Ted Yu <[email protected]> wrote: >> >> > Enis: >> > Do you think a new RC should be made due to HBASE-12237 ? >> > >> > Cheers >> > >> > On Sun, Oct 12, 2014 at 1:53 AM, Enis Söztutar <[email protected]> wrote: >> > >> > > The first release candidate for the second release from branch-1, >> HBase >> > > 0.99.1 RC0, is >> > > available for download at >> > https://people.apache.org/~enis/hbase-0.99.1RC0/ >> > > >> > > Maven artifacts are also available in the temporary repository >> > > >> https://repository.apache.org/content/repositories/orgapachehbase-1043/ >> > > >> > > Signed with my code signing key E964B5FF. Can be found here: >> > > https://people.apache.org/keys/committer/enis.asc >> > > >> > > Signed tag in the repository can be found here: >> > > >> > > >> > >> https://git-wip-us.apache.org/repos/asf?p=hbase.git;a=tag;h=1563ccf209d4352a40ddd229d8264d7bfee1904e >> > > >> > > NOTE IN GIGANTIC LETTERS THAT THIS IS A DEVELOPER RELEASE. >> > > DO NOT USE THIS RELEASE IN PRODUCTION. >> > > >> > > HBase 0.99.1 is a "developer preview" release, and an odd-numbered >> > release >> > > as >> > > defined in >> > https://hbase.apache.org/book/upgrading.html#hbase.versioning. >> > > This release IS NOT intended for production use, and does not contain >> any >> > > backwards or forwards compatibility guarantees (even within minor >> > versions >> > > 0.99.x). Please refrain from deploying this over important data. >> > > >> > > 0.99.1 release is provided from branch-1, which will be the basis for >> > > HBase-1.0 >> > > release. A few 0.99.x releases are planned before 1.0. The reason for >> > > doing a developer preview release is to get more testing for the >> branch-1 >> > > code >> > > that will be released soon as HBase-1.0.0. Thus, all contribution in >> > terms >> > > of >> > > testing, benchmarking, checking API / source /wire compatibility, >> > checking >> > > out >> > > documentation and further code contribution is highly appreciated. 1.0 >> > will >> > > be >> > > the first series in the 1.x line of releases which are expected to >> keep >> > > compatibility with previous 1.x releases. Thus it is very important to >> > > check >> > > the client side and server side APIs for compatibility and >> > maintainability >> > > concerns for future releases. >> > > >> > > 0.99.1 builds on top of all the changes that is in the 0.99.0 release >> (an >> > > overview can be found at [1]). The theme of (eventual) 1.0 release is >> to >> > > become a stable base for future 1.x series of releases. 1.0 release >> will >> > > aim to achieve at least the same level of stability of 0.98 releases >> > > without introducing too many new features. >> > > >> > > The work to clearly mark and differentiate client facing APIs, and >> > > redefine >> > > some of the client interfaces for improving semantics, easy of use and >> > > maintainability has continued in 0.99.1 release. Remaining work can >> > > be found in HBASE-10602. Marking/remarking of interfaces with >> > > InterfaceAudience >> > > has also been going on, which will identify areas for compatibility >> (with >> > > clients, coprocessors and dependent projects like Phoenix) for future >> > > releases. >> > > >> > > 0.99.1 changes some of the behavior for master / region colocation >> that >> > was >> > > introduced in 0.99.0 (see [1]). Now, the backup masters can no longer >> > host >> > > any regions. And active master can host regions of defined tables if >> > > configured. Otherwise, it will not show up the region server UI >> similar >> > to >> > > a 0.98 deployment. Though master and region server still shares the >> same >> > > rpc >> > > ports. Details can be found here (HBASE-12034 and HBASE-10569). >> > > >> > > Some other notable improvements in this release are >> > > - [HBASE-11178] - Remove deprecation annotations from mapred >> namespace >> > > - [HBASE-11920] - Add CP hooks for ReplicationEndPoint >> > > - [HBASE-11997] - CopyTable with bulkload >> > > - [HBASE-12059] - Create hbase-annotations module >> > > - [HBASE-11990] - Make setting the start and stop row for a specific >> > > prefix easier >> > > - [HBASE-12220] - Add hedgedReads and hedgedReadWins metrics >> > > - [HBASE-12090] - Bytes: more Unsafe, more Faster >> > > - [HBASE-12032] - Script to stop regionservers via RPC >> > > - [HBASE-11907] - Use the joni byte[] regex engine in place of >> j.u.regex >> > > in RegexStringComparator >> > > - [HBASE-11796] - Add client support for atomic checkAndMutate >> > > - [HBASE-11804] - Raise default heap size if unspecified >> > > - [HBASE-11890] - HBase REST Client is hard coded to http protocol >> > > - [HBASE-12126] - Region server coprocessor endpoint >> > > - [HBASE-12183] - FuzzyRowFilter doesn't support reverse scans >> > > - [HBASE-12197] - Move REST (create hbase-rest module) >> > > - Continuation of the cell-based read / write pipeline work for >> > > performance boost >> > > - Various fixes to REST server >> > > - Some more documentation improvements >> > > - Numerous improvements in other areas and bug fixes. >> > > >> > > The release has these changes in default behaviour: >> > > - default heap for region servers (and master) is changed from 1GB to >> > > the jdk's default. On most platforms, it will default to 1/4 of >> > physical >> > > memory >> > > - mapred package and classes under there has been un-deprecated. >> > > - two new modules (jar files): hbase-annotations and hbase-rest >> > > - Slab cache has been removed (use bucket cache instead) >> > > - Some more client API cleanup. >> > > >> > > >> > > Thanks for everybody who have contributed to this release. Full list >> of >> > the >> > > issues >> > > can be found here: >> > > >> > > >> > >> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12328551 >> > > >> > > >> > > Compatibility >> > > ------------- >> > > 0.99.x series of releases are preview of upcoming 1.0 release. >> HBase-1.0 >> > is >> > > planned to be wire compatible with 0.98.x and 0.96.x releases. Clients >> > and >> > > servers running in different versions as long as new features are not >> > used >> > > should be possible. >> > > A rolling upgrade from 0.98.x clusters to 0.99.1 is supported as well. >> > > 0.99.1 >> > > introduces a new file format (hfile v3) that is enabled by default >> that >> > > 0.96.x code cannot read. Rolling upgrade from 0.96 directly to 0.99 is >> > not >> > > tested. >> > > >> > > Direct migration from 0.94.x is also supported but it IS NOT tested. >> > Before >> > > HBase-1.0 we expect to complete the test. >> > > >> > > Binary compatibility at the Java API layer with earlier versions >> (0.98.x, >> > > 0.96.x and 0.94.x) is not supported. You may have to recompile your >> > client >> > > code and any server side code (coprocessors, filters etc) referring to >> > > hbase jars. >> > > >> > > 0.99.x release introduces new APIs, and deprecates some of >> commonly-used >> > > client side APIs (HTableInterface, etc). However, client side code is >> > > expected >> > > to be source compatible with earlier versions. However we advise to >> > update >> > > your application to use the new style of APIs, since deprecated APIs >> > might >> > > be removed in future releases (2.x). >> > > >> > > >> > > Supported Hadoop versions >> > > ------------------------- >> > > 0.99.x releases drop support for Hadoop-1.x releases. Only Hadoop-2.x >> > > releases are supported. Hadoop-2.4.x and Hadoop-2.5.x releases are the >> > > most tested hadoop releases and we recommend running with those >> versions. >> > > Earlier Hadoop-2 based releases (hadoop-2.2.x and 2.3.x) are not >> tested >> > to >> > > the full >> > > extend. More information can be found here: >> > > https://hbase.apache.org/book/configuration.html#hadoop >> > > >> > > >> > > Supported Java versions >> > > ------------------------- >> > > 0.99.x releases drop support for JDK6. Only JDK7 is supported. JDK8 >> > support >> > > is experimental. More information can be found here: >> > > https://hbase.apache.org/book/configuration.html#java >> > > >> > > >> > > Voting >> > > ------ >> > > Please try to test and vote on this release by 10/14/2014 11:59PM PDT. >> > > This is a developer (beta) release, so we have a shorter vote time. >> > > [] +1 Release the artifacts as 0.99.1 >> > > [] -1 DO NOT release the artifacts as 0.99.1, because... >> > > >> > > Thanks for helping to get a stable release out! >> > > >> > > References >> > > ---------- >> > > [1] >> > > >> > > >> > >> https://mail-archives.apache.org/mod_mbox/hbase-dev/201409.mbox/%3ccamuu0w9y_+afw6ww0ha_p8kbew35b3ncshbuqacfndzs8tc...@mail.gmail.com%3E >> > > >> > > Enis >> > > >> > >> > >
