I'll spin a new one tomorrow. Enis
On Mon, Jan 26, 2015 at 12:26 AM, Enis Söztutar <e...@apache.org> wrote: > Sigh. Consider this RC in the bottom of the ocean. > > See > https://issues.apache.org/jira/browse/HBASE-12919 > > Enis > > On Mon, Jan 26, 2015 at 12:11 AM, Enis Söztutar <e...@apache.org> wrote: > >> I gives me great pleasure to announce that the second release candidate >> for the release >> 1.0.0 (HBase-1.0.0RC1), is available for download at >> https://dist.apache.org/repos/dist/dev/hbase/hbase-1.0.0RC1/ >> >> Maven artifacts are also available in the temporary repository >> https://repository.apache.org/content/repositories/orgapachehbase-1056 >> >> 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=46edac369542227e23c6e0b5edfe3aa68ca264a3 >> >> HBase 1.0.0 is the next stable release, and the start of "semantic >> versioned" >> releases (See [1]). >> >> The theme of 1.0.0 release is to become a stable base for future 1.x >> series >> of releases. We aim to achieve at least the same level of stability of >> 0.98 >> releases. >> >> 1.0.0 release contains 155 fixes on top of 0.99.2 release. Together with >> the >> previous 0.99.x releases, major changes in 1.0.0 are listed (but not >> limited to) >> below. Note that all 0.99.x releases are developer preview releases, and >> will >> NOT be supported in any form. >> >> API Cleanup and changes >> 1.0.0 introduces new APIs, and deprecates some of commonly-used >> client side APIs (HTableInterface, HTable and HBaseAdmin). >> We advise to update your application to use the new style of APIs, since >> deprecated APIs might be removed in future releases (2.x). See [2] and >> [3] >> for an overview of changes. All Client side API's are marked with >> InterfaceAudience.Public class, indicating that the class/method is an >> official "client API" for HBase. All 1.x releases are planned to be API >> compatible for these classes. See [1] for an overview. >> >> Master runs a Region Server as well >> Starting with 1.0.0, the HBase master server and backup master servers >> will >> also act as a region server. RPC port and info port for web UI is >> shared for >> the master and region server roles. Active master can host regions of >> defined tables if configured (disabled by default). Backup masters will >> not >> host regions. >> >> Read availability using timeline consistent region replicas >> This release contains Phase 1 items for experimental "Read availability >> using >> timeline consistent region replicas" feature. A region can be hosted in >> multiple region servers in read-only mode. One of the replicas for the >> region >> will be primary, accepting writes, and other replicas will be sharing >> the same >> data files. Read requests can be done against any replica for the >> region with >> backup RPCs for high availability with timeline consistency guarantees. >> More >> information can be found at HBASE-10070. >> >> Online config change and other forward ports from 0.89-fb branch >> HBASE-12147 forward ported online config change which enables some of >> the >> configuration from the server to be reloaded without restarting the >> region >> servers. >> >> Other notable improvements in 1.0.0 (including previous 0.99.x) are >> - A new web skin in time for 1.0 (http://hbase.apache.org) >> - Automatic tuning of global memstore and block cache sizes >> - Various security, tags and visibility labels improvements >> - Bucket cache improvements (usability and compressed data blocks) >> - A new pluggable replication endpoint to plug in to HBase's >> inter-cluster >> replication to replicate to a custom data store >> - A Dockerfile to easily build and run HBase from source >> - Truncate table command >> - Region assignment to use hbase:meta table instead of zookeeper for >> faster >> region assignment (disabled by default) >> - Extensive documentation improvements >> - [HBASE-12511] - namespace permissions - add support from table >> creation privilege in a namespace 'C' >> - [HBASE-12568] - Adopt Semantic Versioning and document it in the book >> - [HBASE-12640] - Add Thrift-over-HTTPS and doAs support for Thrift >> Server >> - [HBASE-12651] - Backport HBASE-12559 'Provide LoadBalancer with online >> configuration capability' to branch-1 >> - [HBASE-10560] - Per cell TTLs >> - [HBASE-11997] - CopyTable with bulkload >> - [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-12075] - Preemptive Fast Fail >> - [HBASE-12354] - Update dependencies in time for 1.0 release >> - [HBASE-12363] - Improve how KEEP_DELETED_CELLS works with MIN_VERSIONS >> - [HBASE-12434] - Add a command to compact all the regions in a >> regionserver >> - [HBASE-8707] - Add LongComparator for filter >> - [HBASE-12286] - [shell] Add server/cluster online load of >> configuration changes >> - [HBASE-12361] - Show data locality of region in table page >> - [HBASE-12496] - A blockedRequestsCount metric >> - [HBASE-12730] - Backport HBASE-5162 (Basic client pushback mechanism) >> to branch-1 >> - [HBASE-12731] - Heap occupancy based client pushback >> - [HBASE-12728] - buffered writes substantially less useful after >> removal of HTablePool >> - [HBASE-5699] - Run with > 1 WAL in HRegionServer >> - Various fixes to REST server >> - Internal refactoring for abstracting away zookeeper usage >> - Better support for Cell interface internally in read and write paths >> for >> better performance and flexibility >> - Combining internal mvcc and seqId infrastructure >> - Ring buffer based WAL improvements >> - Switch to using new style of client APIs internally (in a lot of >> places) >> - Improvements in visibility labels >> - Perf improvements >> - Numerous improvements in other areas and bug fixes. >> >> 1.0.0 release has these changes in default behaviour (see [4]) >> - Zookeeper 3.4.x is required >> - Hadoop-2.x is required >> - JDK-1.7 is required >> - Default ports have changed from 600XX range into out of ephemeral >> 160XX range. >> - Hfile version 3 has been enabled by default. >> - Slab cache has been removed (use bucket cache instead) >> - 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 >> - Some client facing APIs (HTableInterface, etc) has been deprecated and >> replaced. >> - Custom Filter implementations should switch to using the new >> recommended APIs. >> - Some authorization permissions (especially regarding namespaces) have >> been >> changed (HBASE-12511, HBASE-8015) >> - Mapred package and classes under there has been un-deprecated. >> - Two new modules (jar files): hbase-annotations and hbase-rest. >> - HTrace dependency is moved to the Apache artifacts ( >> https://htrace.incubator.apache.org/) >> - Various updates to dependency versions >> >> Full list of the issues can be found at: >> - 1.0.0 issues : >> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12325852 >> - 0.99.2 issues : >> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12325675 >> - 0.99.1 issues : >> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12328551 >> - 0.99.0 issues : >> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12328822 >> >> Compatibility >> ------------- >> Source Compatibility: >> Client side code in HBase-1.0.0 is (mostly) source compatible with earlier >> versions. Some minor API changes might be needed from the client side. >> >> >> Wire Compatibility: >> HBase-1.0.0 release is wire compatible with 0.98.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 1.0.0 is supported as well. >> 1.0.0 >> introduces a new file format (hfile v3) that is enabled by default that >> 0.96.x code cannot read. Thus, rolling upgrade from 0.96 directly to >> 1.0.0 is >> not supported. >> 1.0.0 is NOT wire compatible with earlier releases (0.94, etc). >> >> Binary Compatibility: >> 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. >> >> Upgrading >> --------- >> See [4] for upgrade instructions and extended discussion on the changes. >> >> From 0.98.x : Upgrade from 0.98.x in regular upgrade or rolling upgrade >> fashion >> is supported. >> >> From 0.96.x : Upgrade from 0.96.x is supported with a shutdown and >> restart of >> the cluster. >> >> From 0.94.x : Upgrade from 0.94.x is supported similar to upgrade from >> 0.94 -> 0.96. The upgrade script should be run to rewrite cluster level >> metadata. >> See [5] for details. >> >> >> Supported Hadoop versions >> ------------------------- >> 1.0.0 release drops support for Hadoop-1.x releases. Only Hadoop-2.x >> releases are supported. Hadoop-2.4.x, Hadoop-2.5.x and Hadoop-2.6.x >> releases >> are the most tested hadoop releases and we recommend running with those >> versions >> (or later 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 >> ------------------------- >> 1.0.0 release drops 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 Feb 08 2015 11:59PM PDT. >> Due to the importance of 1.0 release we will have a 2 week voting period >> to cover sufficient testing. Please notify here if you need more time to >> test the RC. >> >> [] +1 Release the artifacts as 1.0.0 >> [] -1 DO NOT release the artifacts as 1.0.0, because... >> >> Gratitute >> --------- >> Last but not least, 1.0.0 release has been in a long time making with >> contributions from a very large group of awesome people and hard work from >> committers and contributors. We would like to extend our thanks to >> everybody >> who worked on this release or contibuted to HBase over the years. >> >> >> References >> ---------- >> [1] https://hbase.apache.org/book/upgrading.html#hbase.versioning >> [2] http://www.slideshare.net/xefyr/apache-hbase-10-release >> [3] http://s.apache.org/hbase-1.0-api >> [4] https://hbase.apache.org/book/upgrade1.0.html#upgrade1.0.changes >> [5] https://hbase.apache.org/book/upgrade1.0.html#upgrade1.0.from.0.94 >> >> Enis >> > >
