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记一次数据库表自增长（Auto Increment）故障 - 数据库(内核) - 清泛网 - ...
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If you specify an AUTO_INCREMENT column for an InnoDB table, the table handle in the InnoDB data dictionary contains a special counter called the auto-increment counter that is used in assigning new values for the column. This counter is stored only in main memory, not on disk.
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A server r...
oracle:完整剖析PL/SQL DEVELOPER与SQL PLUS字符集设置 - 数据库(内核) - ...
...hen selected, Unicode data will be fetched as such from the Oracle Server, and displayed as Unicode text. When disabled, Unicode data from the server will be converted to the character set of the Oracle Client, in accordance with the NLS_LANG key of the Oracle Home Registry. -----------from pl/sql...
MySQL 启动报错 Table \'mysql.plugin\' doesn\'t exist - 数据库(内核) -...
...ql_upgrade to create it.
141211 15:06:14 [ERROR] Fatal error: Can\'t open and lock privilege tables: Table \'mysql.host\' doesn\'t exist
141211 15:06:14 mysqld_safe mysqld from pid file /opt/szy/data/mysqldevdb03.pid ended
问题分析：
这是执行scripts/mysql_install_db --user=mysql没有...
Windows启动过程 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...on.exe负责启动进程(services.exe)，并创建sass.exe (Local Security and Authentication Subsystem)，以对用户登录系统时进行验证。
3 Winlogon将把登录窗口呈献给用户，用户登录成功后，它将家在explorer.exe，并根据当前用户的配置...
一致性hash和solr千万级数据分布式搜索引擎中的应用 - 大数据 & AI - 清泛...
...sh和solr千万级数据分布式搜索引擎中的应用consistenthashing_and_solr互联网创业中大部分人都是草根创业，这个时候没有强劲的服务器，也没有钱去买很昂贵的海量数据库。在这样严峻的条件下，一批又一批的创业者 那怎么搭建一...
MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
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localhost:10001 (primary)
localhost:10002 (member)
I have initReplset and add localhost:10002 to the replset,
Then I create a new connection.When I try to connect,the exception happened.
If slaveOk of this connection setting is true.
Stack:
MongoDB.Driver.MongoConnectionException: Unabl...
Python Charts库(Highcharts API的封装) - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...series format. This format is a dictionary containing two properties: data and name:
charts.plot(dict(data=data, name='My series'))
The data itself has to be one of these two options:
A single list (or numpy array):
data = [1,2,5,9,6,3,4,8]
A list containing x,y pairs:
data = [[1,...
从 !important 到关于叹号的 !一切 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...南，名字大概叫做 “Send: The Essential guide to Email for Office and Home“。书中指出电子邮件撰写中，使用叹号可以更好地表达期待和友好。比如 “Thanks!!!” 会比 “Thanks.” 更友好。
F. Scott Fitzgerald（《了不起的盖茨比》作者）反对使...
手把手教你用Strace诊断问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... calling process, such as the memory space, the table of file descriptors, and the table of signal handlers. (Note that on this manual page, “calling process” normally corresponds to “parent process”. But see the description of CLONE_PARENT below.)
简单来说，就是创建一个新进...
HTTPKeepAlive，开启还是关闭 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...url -s http://127.0.0.1/status
Active connections: 95896
server accepts handled requests
66542336512 66542336512 67713042963
Reading: 1945 Writing: 82 Waiting: 93869
其中，各项结果的含义如下：
Active connections: number of all open connections
Server accepts handled requests: ...