In the Rollover By Time section, click Edit.

Logging 9-27 With buffered logging, Oracle Web Cache stores log messages in memory. Oracle Web Cache writes them out in bulk to the access log when the buffer size or the flush interval is reached. The buffer size is set to 2048 bytes. Buffered logging increases performance by reducing the number of disk IO operations. If the Oracle Web Cache server shuts down unexpectedly, buffered log messages may be lost. Oracle recommends disabling buffering to view access log results immediately.

d. If buffering is enabled, in the Flush Interval field, enter the interval, in

seconds, when Oracle Web Cache writes contents of the buffer to the access log file. The default is 10 seconds. When the interval is reached, Oracle Web Cache writes buffered information to the access log file. Even if the buffer is not full, Oracle Web Cache updates the access log. Oracle recommends not changing the default, unless you want to lower the interval to see results more frequently. A value of 0 specifies that Oracle Web Cache will only flush the buffered access log when the specified buffer size has been exceeded.

4. Specify the following settings for each site in the Site-Specific Settings table:

a. If you want to apply the settings from the Default Settings row to this site,

click Use Default for all Sites Settings. Deselect this checkbox to provide site-specific overrides in the other fields.

b. In the File Name field, enter a name for the access log file.

The default file name is access_log.

c. Click Enable Logging to enable logging for the site; deselect to disable logging

for the site. Site-specific logging only takes effect if logging is enabled for the cache. If you enable this option, ensure that it is also selected for the cache in Step 3b. d. Select Log ESI Fragment Requests? to log the ESI fragment log messages from the log element of esi:environment or esi:include in the access_log_file .fragment file. If the x-esi-info field is selected, select to log the events to the access_ log_file .fragment file. The x-esi-info field is automatically selected if the Format Style is End-User Performance Monitoring Format. If the x-esi-info field is not selected, select Dont Log.

e. From the Format Style list, select an access log format.

See Section 9.2.1 for a description of the default formats and Section 9.5 to create a customized style for your environment.

f. From the Rollover Policy list, select a rollover policy to specify how often you

want to change the frequency at which Oracle Web Cache saves current log information to access_log_file.yyyymmddhhmm and writes future log information to a new log file with the configured log file name. For high-volume sites, select a policy with a high frequency. See Section 9.6 to modify an existing policy or create a new rollover policy.

5. Click Apply and restart Oracle Web Cache. See

Section 2.13 .