This is the case for a customer in March, because after a server hardware failure, the business translation occasionally appears slow to commit. Let's take a look at the awr situation first.We can see that the load profile information for this
The log file sync (Log File sync) Wait event has a parameter: Buffer #. In Oracle Database 10 Gb, such wait events are located below commit wait events. When processing Log File sync wait events, pay attention to the following ideas:◎ Log File sync
1. Purpose
The development and maintenance of the application system is inseparable from the log system, and choosing a powerful log system solution is an important part of the application system development process. There are many kinds of log
1. Purpose
The development and maintenance of application systems are inseparable from the log system. Choosing a powerful log system solution is an important part of the application system development process. There are many log system solutions in
By default, ASP. Net does not have the permission to write system logs. To write system logs in ASP. Net, you must have the permissions first. We can solve this problem by setting or modifying the Registry Permissions.
Method 1: "START-> Run", enter
Log files are part of the operating system, so there must be an application programming interface (API) to support logging
Instance:
HANDLE h;if ((h = RegisterEventSource (Null,text ("metalive")) = = NULL){return FALSE;}Const char* PS =
from the white master (eel with) to log file sync waiting event Optimization summary, for you puber to learn the reference:The log file Sync average wait time exceeds 7ms, if the waiting time is too long, it means that log write is too long each
One. DB file Parallel Write wait eventQuote from the following blog:Http://oradbpedia.com/wiki/Wait_Events_-_db_file_parallel_writeDB file Parallel writeThe db file parallel write wait event belongs to the Oracle database writer (DBWR) process
Transferred from: http://blog.chinaunix.net/uid-24250828-id-3198922.html1)/var/log/secure: Record log in system to access data files;For example: POP3,SSH,TELNET,FTP, etc. will be recorded here.2)/ar/log/btmp: Record login This information record,
1)/var/log/secure: Record the log in system Access data file;
For example: Pop3,ssh,telnet,ftp and so on will be recorded here.
2)/ar/log/btmp: Record logged in this information record, has been encoded, so must be resolved by the last;
For
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.