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    YashanDB 崖山数据库尝鲜

    下面直接说一下我第一次使用的感受吧,YashanDB 崖山数据库在 O 兼容性方面做的还是很不错的,包括数据库管理、表空间管理、很多“V” 和“GV”系统视图,"DBA_"和“ALL_"和“USER_”系统视图,exp/imp 传统导入导出均和 O 无太多差别,这让很多 O 记 DBA 能够快速上手,能尽快了解掌握这款国产数据库。对于简单的汇总查询以及数据的插入操作,YashanDB 是完全可以胜任的,但是像多表关联复杂查询,Oracle 强大的优化器让其他数据库望尘莫及,令人意外的是 YashanDB 通过列执行引擎的 HINT,性能查询也不输 O 记 12c 版本,值得期待崖山数据库后面的表现。最后要说的不仅仅是 YashanDB,我们的其他国产数据库仍然需要努力,在优化器上多多下功夫,性能这一块还是要努力,给国产数据库一些时间,期待它在未来的时间里走出国门走向世界。

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    puppet kick 报错返回值cod

    环境: puppetserver端  RHEL5.8或者RHEL6.4 [root@puppetserver1 etc]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.8 (Tikanga) puppetagent端  RHEL5.8 和RHEL6.4 [root@agent3 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.4 (Santiago) [root@agent2 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.8 (Tikanga) [root@agent2 ~]# [root@agent3 ~]# 故障: puppetserver推送到RHEL6.4上OK,推送到RHEL5.8上报错,具体如下   关于agent端配置参考我的博客 http://dreamfire.blog.51cto.com/418026/1257718 操作: [root@puppetserver1 etc]# [root@puppetserver1 etc]# puppet kick -p 10 --host agent2.bsgchina.com失败 Triggering agent2.bsgchina.com Getting status status is running Host agent2.bsgchina.com is already running agent2.bsgchina.com finished with exit code 3 Failed: agent2.bsgchina.com [root@puppetserver1 etc]# puppet kick -p 10 --host agent3.bsgchina.com成功 Triggering agent3.bsgchina.com Getting status status is success agent3.bsgchina.com finished with exit code 0 Finished 日志: [root@agent3 ~]# puppet agent --server=puppetserver1.bsgchina.com --verbose --no-daemonize notice: Starting Puppet client version 2.7.21 info: Caching catalog for agent3.bsgchina.com info: Applying configuration version '1377075268' notice: Finished catalog run in 0.37 seconds info: access[^/catalog/([^/]+)$]: allowing 'method' find info: access[^/catalog/([^/]+)$]: allowing $1 access info: access[^/node/([^/]+)$]: allowing 'method' find info: access[^/node/([^/]+)$]: allowing $1 access info: access[/certificate_revocation_list/ca]: allowing 'method' find info: access[/certificate_revocation_list/ca]: allowing * access info: access[^/report/([^/]+)$]: allowing 'method' save info: access[^/report/([^/]+)$]: allowing $1 access info: access[/file]: allowing * access info: access[/certificate/ca]: adding authentication any info: access[/certificate/ca]: allowing 'method' find info: access[/certificate/ca]: allowing * access info: access[/certificate/]: adding authentication any info: access[/certificate/]: allowing 'method' find info:

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