HAYASHI Kentaro
null+****@clear*****
Tue Dec 1 12:32:19 JST 2015
HAYASHI Kentaro 2015-12-01 12:32:19 +0900 (Tue, 01 Dec 2015) New Revision: 372b469440c1f3fc541a04bc6bf3eab481056205 https://github.com/groonga/groonga.org/commit/372b469440c1f3fc541a04bc6bf3eab481056205 Message: Add 5.1.0 release entry Added files: en/_posts/2015-11-29-groonga-5.1.0.md Added: en/_posts/2015-11-29-groonga-5.1.0.md (+98 -0) 100644 =================================================================== --- /dev/null +++ en/_posts/2015-11-29-groonga-5.1.0.md 2015-12-01 12:32:19 +0900 (8042c41) @@ -0,0 +1,98 @@ +--- +layout: post.en +title: Groonga 5.1.0 has been released +description: Groonga 5.1.0 has been released! +--- + +## Groonga 5.1.0 has been released + +[Groonga 5.1.0](/docs/news.html#release-5-1-0) has been released! + +How to install: [Install](/docs/install.html) + +e recommend you to upgrade to 5.0.9 when you match the following conditions: + + * You are a Groonga 5.0.3-5.0.8 user. + * You use patricia trie (`TABLE_PAT_KEY`) for table. + * You delete one or more records in table that uses patricia trie. + +### Changes + +Here are changes in this release: + + * Added [`reindex`](/docs/reference/commands/reindex.html) command which re-create indexes. + * Improved performance of [groonga-httpd](/docs/reference/executables/groonga-httpd.html). + * Added [`prefix_rk_search()`](/docs/reference/functions/prefix_rk_search.html) which provides [Prefix RK search](/docs/reference/operations/prefix_rk_search.html) functionality. + * Added [Pretty print](/docs/reference/command/pretty_print.html) command. + +#### `reindex` command + +When Groonga crashes in lack of memory or disk full, there is a case that Groonga database also breaks. If broken parts are only limited to indexes, you can recover Groonga database by re-creating index again. + +In the previous versions, you need to execute two operations - delete & create indexes with same parameters. In this release, [`reindex`](/docs/reference/commands/reindex.html) command does same operations at once. + +There is a another tool to recover Groonga database - [`grndb`](/docs/reference/executables/grndb.html). +It provides a functionality to check broken database, a equivalent one to `reindex` command, and more. + +#### Improved performance of groonga-httpd + +[groonga-httpd](/docs/reference/executables/groonga-httpd.html) is a Groonga HTTP server which is based on nginx. +[groonga executable](/docs/reference/executables/groonga.html) is also provides builtin HTTP server functionality, but it provides very limited features. + +See [HTTP server comparison](/docs/server/http.html) about difference of groonga executable and groonga-httpd. + +In this release, internal process of groonga-httpd is optimized, as a result, performance is improved. + +Try this one, if you are not satisfied with previous version of groonga-httpd. + +#### Added `prefix_rk_search()` function + +Groonga provides specific functionality for Japanese. +[Prefix RK search](/docs/reference/operations/prefix_rk_search.html) is one of them. (RK means Romaji and Katakana) + +This feature is used to [suggest](/docs/reference/suggest.html) proper [completion](/docs/reference/suggest/completion.html). + +In this release, [`prefix_rk_search()`](/docs/reference/functions/prefix_rk_search.html) function is added, and you can use this function in [`select`](/docs/reference/commands/select.html) command. + +#### Support pretty print of JSON + +Groonga returns search result as JSON format by default. It is not human readable as you can see. + +```text +> status +[[0,1448344438.43783,5.29289245605469e-05],{"alloc_count":233,"starttime":1448344437,...}] +``` + +It is convenient for machine, but not for human. +In this release, if you specify `--output_pretty yes`, Groonga supports [Pretty Print](/docs/reference/command/pretty_print.html). + +Here is the example about this feature. + +```text +> status --output_pretty yes +[ + [ + 0, + 1448344438.43783, + 5.29289245605469e-05 + ], + { + "alloc_count": 233, + "starttime": 1448344437, + "start_time": 1448344437, + "uptime": 1, + "version": "5.0.9-135-g0763d91", + "n_queries": 0, + "cache_hit_rate": 0.0, + "command_version": 1, + "default_command_version": 1, + "max_command_version": 2 + } +] +``` + +### Conclusion + +See [Release 5.1.0 2015-11-29](/docs/news.html#release-5-1-0) about detailed changes since 5.0.9. + +Let's search by Groonga! -------------- next part -------------- HTML����������������������������...Télécharger
