crate 0.49.3/0.50.0 发布,大规模数据存储系统

2015年06月17日 14:07 146 次阅读 来源: 开源中国 作者: 路人甲
摘要 crate 0.49.30.50.0 发布,其中 0.49.3 的更新内容如下:- Fixed an issue where ``_raw`` and ``_doc`` in primary key queries returned ``NULL``- Updated crash to 0.13.0 which includes following changes:- Added `dynamic...

crate 0.49.3/0.50.0 发布,其中 0.49.3 的更新内容如下:


 - Fixed an issue where ``_raw`` and ``_doc`` in primary key queries

   returned ``NULL``

 - Updated crash to 0.13.0 which includes following changes:

 - Added `dynamic` as output format option

 - Added ``--version`` to cli interface to show crash version and exit

    - Display command help in case the command is not used correctly

    - Display NULL values in mixed mode correctly

    - Fixed broken 'mixed' output style due to overriding import

    - Improved readability of sql syntax highlighting

    - Attempting to use unknown command now results in an error

 - Fix: return correct status for ``GET`` requests on ``/`` REST endpoint

   when cluster is starting up

 - Fixed a race condition that could cause a `CREATE TABLE` statement

   immediately after a `DROP TABLE` statement to fail.

 - Fixed a minor memory leak that occurred if custom schemas were deleted.

 - Fixed incorrect comparison in query by IP type

 - Fix: make sure sys.nodes expressions that utilize os/process/network/jvm

   services use the same stats probe per row; previously values derived from

   these services could have been from different probes

0.50.0 的更新内容如下:


NOTE: Upgrading from 0.49 or earlier versions requires a full cluster restart

 - Updated crate-admin to 0.13.2 which includes following changes:

    - improved layout for smaller screens

    - improved load graph on overview page

    - display load, cpu usage, disk i/o, process stats and shard information

      on node detail page

    - added columns with partition values on "Partitions" table

      on table detail view

 - Added ``probe_timestamp`` child expressions for os, process, heap, mem, and

   network columns to sys.nodes table

 - Added ``process['cpu']`` column to sys.nodes table

 - Added ``ALTER TABLE ONLY`` statement support.

 - Added unicast host discovery via SRV DNS records

 - Added the ``KILL ALL`` statement which can be used to cancel running

   operations

 - Added new table settings that can be set on ``CREATE TABLE``

   and changed/reset with ``ALTER TABLE``.

 - Added the ``concat`` scalar function and the concat operator ``||``.

 - Updated Elasticsearch to 1.5.2

 - Added the ``IF NOT EXISTS`` clause to the ``CREATE TABLE`` statement

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Crate Data 是一个开源的大规模的可伸缩的数据存储系统,无需任何系统管理需求。提供强大的搜索功能。用于存储各种表格数据、非结构化数据和二进制对象。并可通过 SQL 进行检索。易于安装和使用,支持高可用性和实时大规模并行访问和处理。

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