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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...
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MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...

... 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...
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CentOS系统下如何挂载第2块磁盘 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... rw: read-write defaults: rw, suid, dev, exec, auto, nouser, and async. 5.第5列为dump选项,设置是否让备份程序dump备份文件系统,0为忽略,1为备份。 6.第6列为fsck选项,告诉fsck程序以什么顺序检查文件系统,0为忽略CentOS 挂载 ...
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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...
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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...
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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: ...
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设置用户默认权限 Umask命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...限计算实际上是二进制位的与操作,参考All About the umask and Permissions。 操作bar.tar shell> tar xf bar.tar 这次有点不同,我们要运行两次tar命令。 第一次:以root身份运行tar命令,然后查看目录和文件的权限,分别是: bar_dir:77...
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TortoiseSVN允许修改日志的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...:::::::::::::::::::::: :: Only allow changes to svn:log. The author, date and other revision :: properties cannot be changed :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: if /I not '%propname%'=='svn:log' goto ERROR_PROPNAME :::::::::::::::::::::::::::::::::::::::::::::...
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7款在线思维导图制作网址及相关介绍 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...等) * 导出图形为 SVG (Microsoft Visio, Adobe Illustrator, and Macromedia FreeHand) * 交互性的拖放操作界面 * 可打印图形 * 支持图形编辑历史记录 (实时恢复图形到早期版本) * 键盘快捷键 (7)MindMup - ...
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configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...

...configure.ac:64: error: possibly undefined macro: AM_ICONV If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. 错误,在./configure 后加上--enable-m4_pattern_allow 重新编译即可通过 4.重新编译php,通过 gd.h