Cache Log (cachelog)

Media Flow Controller supplies a log of cache activity; for example, an object has been added, deleted, or modified in the cache. See “Configuring Service Logs” on page 132 for implementation details. See cachelog for CLI details.

cache

copy <SCP>

filename <filename>

on-the-hour {disable | enable}

rotate {filesize-MB <integer> | time-interval <integer>}

syslog

For each type of event, Add, Attribute Update, and Delete; a single entry is written:

•	ADD entries include:

a.	Date in square brackets

b.	Type (ADD)

c.	URI name in double quotes

d.	Cache tier name

e.	Cache name

f.	Content length in bytes

g.	Expiry time for this URI, in UTC format with square brackets

•	ATTR_UPDATE (Attribute Update) entries include:

a.	Date in square brackets

b.	Type (ATTR_UPDATE)

c.	URI name in double quotes

d.	Cache tier name

e.	Cache name

f.	Expiry time for this URI, in UTC format with square brackets

•	DELETE entries include:

a.	Date in square brackets

b.	Type (DELETE)

c.	URI name in double quotes

d.	Cache tier name

e.	Cache name

Example:

[Fri Jun 26 19:37:09.754 2009] ADD "/http-cl18:ed239a85/100k-files/117/29" SAS dc_3 32768 [Fri Jun 26 19:38:14 2009]

[Fri Jun 26 19:38:23.257 2009] ATTR_UPDATE "/http-cl18:ed239a85/100k-files/588/45" SAS dc_3 [Fri Jun 26 19:39:28 2009]

[Fri Jun 26 19:50:59.072 2009] DELETE "/http-cl18:ed239a85/100k-files/381/69" SAS dc_4

Note! Attribute Update is performed with a namespace origin-request cache-revalidation on an individual URI. If this namespace option is set to deny, no Attribute Update entries occur. Each URI has its own expiry time. If the re-validation indicates that a URI is still valid, the Attribute Update event updates the URI expiry time; this makes a log entry.