ChuckLu - 博客园

2019年1月2日

摘要： https://blog.csdn.net/szx1999/article/details/50073857 7. 写日志会影响系统性能吗？写日志必然是会消耗一定资源的，而RollingFileAppender也不是线程安全的。为了减小log4net影响系统性能的嫌疑，我们加入lockingMod 阅读全文

posted @ 2019-01-02 10:41 ChuckLu 阅读(986) 评论(0) 推荐(1)

lockingModel in log4net 日志文件不能被其他进程写入

摘要： How do I get multiple process to log to the same file? Before you even start trying any of the alternatives provided, ask yourself whether you really 阅读全文

posted @ 2019-01-02 10:23 ChuckLu 阅读(2339) 评论(0) 推荐(1)

rollingstyle in log4net

摘要： RollingFileAppender.RollingStyle Property The default rolling style is Composite. When set to Once this appender's AppendToFile property is set to fal 阅读全文

posted @ 2019-01-02 10:06 ChuckLu 阅读(1607) 评论(0) 推荐(0)

2018年12月26日

sql server update时，默认使用是行锁还是表锁？

摘要： https://bbs.csdn.net/topics/120000749 http://www.cnblogs.com/s021368/articles/2148659.html 问题： udpate a set column1 = 1 where idx = 1 sqlserver 执行upda 阅读全文

posted @ 2018-12-26 11:43 ChuckLu 阅读(11360) 评论(2) 推荐(0)

multi update caused deadlock problem

摘要： https://social.msdn.microsoft.com/Forums/sqlserver/en-US/dba45618-1d64-4661-891d-74cab09dddf1/deadlock-while-running-multiple-update-statements?forum= 阅读全文

posted @ 2018-12-26 11:18 ChuckLu 阅读(323) 评论(0) 推荐(0)

Start and Use the Database Engine Tuning Advisor

摘要： https://docs.microsoft.com/en-us/sql/relational-databases/performance/start-and-use-the-database-engine-tuning-advisor?view=sql-server-2017 阅读全文

posted @ 2018-12-26 10:37 ChuckLu 阅读(199) 评论(0) 推荐(0)

SQL Server technical bulletin - How to resolve a deadlock

摘要： https://support.microsoft.com/en-us/help/832524/sql-server-technical-bulletin-how-to-resolve-a-deadlock How to identify a deadlock Step 1 To identify 阅读全文

posted @ 2018-12-26 10:16 ChuckLu 阅读(606) 评论(0) 推荐(0)

2018年12月25日

sql server deadlock problem

摘要： https://www.red-gate.com/simple-talk/sql/learn-sql-server/how-to-track-down-deadlocks-using-sql-server-2005-profiler/ https://social.msdn.microsoft.co 阅读全文

posted @ 2018-12-25 18:16 ChuckLu 阅读(329) 评论(0) 推荐(0)

space sniffer清理的空间

摘要： http://www.uderzo.it/main_products/space_sniffer/download.html 部分超级大的单文件，比如数据库 C:\inetpub\logs\LogFiles\W3SVC4 C:\Users\clu\AppData\Local\JetBrains\Tr 阅读全文

posted @ 2018-12-25 13:54 ChuckLu 阅读(859) 评论(0) 推荐(0)

log files of IIS

摘要： C:\inetpub\logs\LogFiles https://docs.microsoft.com/en-us/iis/manage/provisioning-and-managing-iis/managing-iis-log-file-storage#03 使用 space sniffer扫描阅读全文

posted @ 2018-12-25 13:44 ChuckLu 阅读(203) 评论(0) 推荐(0)

Chuck Lu

公告