概述:
(1)每个tracker服务在启动时会调用tracker_relationship_init函数启动一个线程relationship_thread_entrance。该线程会每隔几秒进行各个tracker的关系确认,若leader发生了变动,或宕机之类,会重新选出leader。
(2) 调用流程
main函数
|-int tracker_relationship_init()
...
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其他好文 时间:
2015-05-08 11:02:31
阅读次数:
127
修改基本表ALTER TABLE
[ ADD [ 完整性约束 ] ]
[ DROP ]
[ ALTER COLUMN ];
[例8]向Student表增加“入学时间”列,其数据类型为日期型。
ALTER TABLE Student ADD S_entrance DATE;
不论基本表中原来是否已有数据,新增加的列一...
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数据库 时间:
2015-05-05 10:36:29
阅读次数:
276
Description
The cornfield maze is a popular Halloween treat. Visitors are shown the entrance and must wander through the maze facing zombies, chainsaw-wielding psychopaths, hippies, and other terro...
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其他好文 时间:
2015-05-02 15:14:04
阅读次数:
131
BillboardTime Limit: 1 SecMemory Limit: 256 MB题目连接http://acm.hdu.edu.cn/showproblem.php?pid=2795DescriptionAt the entrance to the university, there is...
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其他好文 时间:
2015-04-21 12:37:57
阅读次数:
139
列车调度(Train)DescriptionFigure 1 shows the structure of a station for train dispatching.Figure 1In this station, A is the entrance for each train and B ...
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其他好文 时间:
2015-04-19 21:21:39
阅读次数:
254
BillboardTime Limit:8000MSMemory Limit:32768KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 2795Appoint description:DescriptionAt the entrance ...
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其他好文 时间:
2015-04-12 19:15:14
阅读次数:
157
题目描述: Grading hundreds of thousands of Graduate Entrance Exams is a hard work. It is even harder to design a process to make the results as fair as po...
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其他好文 时间:
2015-04-11 19:10:21
阅读次数:
130
链接:click here~~
题意:
描述
LK has a question.Coule you help her?
It is the beginning of the day at a bank, and a crowd of clients is already waiting for the entrance door to open.
Once the ban...
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编程语言 时间:
2015-02-24 13:52:25
阅读次数:
210
Problem DescriptionAt the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the place where all possible announcements are...
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其他好文 时间:
2015-02-24 11:28:39
阅读次数:
138