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| 1 | + |
| 2 | +----------------------------------------------------------------------------- |
| 3 | +HandlerSocket plugin for MySQL |
| 4 | + |
| 5 | +Copyright (c) 2010 DeNA Co.,Ltd. |
| 6 | +All rights reserved. |
| 7 | + |
| 8 | +Redistribution and use in source and binary forms, with or without |
| 9 | +modification, are permitted provided that the following conditions are met: |
| 10 | + |
| 11 | + * Redistributions of source code must retain the above copyright |
| 12 | + notice, this list of conditions and the following disclaimer. |
| 13 | + * Redistributions in binary form must reproduce the above copyright |
| 14 | + notice, this list of conditions and the following disclaimer in the |
| 15 | + documentation and/or other materials provided with the distribution. |
| 16 | + * Neither the name of DeNA Co.,Ltd. nor the names of its contributors |
| 17 | + may be used to endorse or promote products derived from this software |
| 18 | + without specific prior written permission. |
| 19 | + |
| 20 | +THIS SOFTWARE IS PROVIDED BY DeNA Co.,Ltd. "AS IS" AND ANY EXPRESS OR |
| 21 | +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 22 | +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 23 | +EVENT SHALL DeNA Co.,Ltd. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 | +PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 26 | +OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 27 | +WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 28 | +OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 29 | +ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | + |
| 31 | + |
1 | 32 | ----------------------------------------------------------------------------- |
2 | 33 | About HandlerSocket |
3 | 34 |
|
4 | | -Handlersocket is a NoSQL plugin for MySQL. It works as a daemon inside the |
| 35 | +HandlerSocket is a NoSQL plugin for MySQL. It works as a daemon inside the |
5 | 36 | mysqld process, accept tcp connections, and execute requests from clients. |
6 | | -Handlersocket does not support SQL queries. Instead, it supports simple CRUD |
| 37 | +HandlerSocket does not support SQL queries. Instead, it supports simple CRUD |
7 | 38 | operations on tables. |
8 | 39 |
|
9 | | -Because of the following reasons, handlersocket is much faster than the |
| 40 | +Because of the following reasons, HandlerSocket is much faster than the |
10 | 41 | mysqld/libmysql pair in some circumstances: |
11 | 42 |
|
12 | | - - Handlersocket manipulates data without parsing SQL, which causes less |
| 43 | + - HandlerSocket manipulates data without parsing SQL, which causes less |
13 | 44 | CPU usage. |
14 | | - - Handlersocket reads many requests from clients and executes their |
| 45 | + - HandlerSocket reads many requests from clients and executes their |
15 | 46 | requests in bulk, which causes less CPU and disk usage. |
16 | | - - Handlersocket client/server protocol is more compact than the |
| 47 | + - HandlerSocket client/server protocol is more compact than the |
17 | 48 | mysql/libmysql pair, which causes less network usage. |
18 | 49 |
|
19 | | -The current version of handlersocket only works with GNU/Linux. There are |
20 | | -a c++ and a perl library for handlersocket clients. |
| 50 | +The current version of HandlerSocket only works with GNU/Linux. There are |
| 51 | +a c++ and a perl library for HandlerSocket clients. |
21 | 52 |
|
22 | 53 | See documentation files under docs-en/ (docs-ja/) for details. |
23 | 54 | (Note: the current source tree of HandlerSocket has a lot of compilation |
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