Oracle Web Cache Administration and Deployment Guide Release 1.0.2 Part Number A86722-01 |
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# D
Event Log Messages

This appendix describes the common information, warning, and error event log messages. It contains these topics:

- Information Events

- Warning Events

- Error Events

## Information Events

Table D-1 lists the common event log informational messages.

Table D-1 Information Events

#####

Message | Description
--- | ---
Startup Initialization Events
`"Listening on ADMINISTRATOR` `port` `port address` `ip_address``"` | The listening port number and IP address for administration requests.
`"Listening on INVALIDATION` `port` `port address ip_address"` | The listening port number and IP address for invalidation requests.
`"Listening on NORM port` `port` `address ip_address"` | The listening port number and IP address for Web browser requests to Oracle Web Cache.
`"Listening on STATISTICS port port address` `ip_address``"` | The listening port number and IP address for statistics monitoring requests.
`"The cache server is started by the admin server at startup"` | The Oracle Web Cache `admin` process started the `cache` process.
`"The admin server started successfully"` | The Oracle Web Cache `admin` process successfully started.
`"The cache server started successfully"` | The Oracle Web Cache `cache` process successfully started.
Shutdown Events
`"SIGTERM caught - program will shut down once all connections are complete."` | A UNIX event that specifies that Oracle Web Cache will shut down once all connections are complete.
`"The server is exiting"` | Oracle Web Cache is shutting down.
Operational Events
`"There was a network failure before the transaction was completed."` | Oracle Web Cache terminated the connection to the Web browser.
Invalidation Events
`"<Invalidation>Exact URI` `URL` `has been invalidated successfully."` | The URL has been successfully invalidated.
`"<Invalidation>URI` `URI` `is not cacheable."` | The URL is not cacheable document and cannot be invalidated.
`"<Invalidation>``number` `URLs with prefix` `prefix` `have been successfully invalidated."` | The number of URLs by a particular prefix that have been successfully invalidated.
`"<Invalidation>Requested URI` `URI` `is not found in the cache. URI is not invalidated."` | The URL is not in the cache and cannot be invalidated.

## Warning Events

Table D-2 lists the common event log warning messages.

Table D-2 Warning Events

#####

Message | Description
--- | ---
Startup Initialization Events
`"The admin server couldn't start the cache server, running in admin-only mode."` | The Oracle Web Cache `admin` process is unable to start the `cache` process. This may due to a listening port conflict.
`"Origin Server module got an ABORT; Errno:` `error` `URI:` `URI``"` | Oracle Web Cache detects a problem with the application Web server, such as a shut down or failure.
Oracle Web Cache Memory-Related Events
`"No space left for adding the Content-Length header for KeepAlive headers URI: URI"` | Oracle Web Cache does not have enough memory to allocate memory for `Keep-Alive` headers. For each response from the application Web server that does not contain a `Content-Length` field in the header, Oracle Web Cache allocates extra memory for `Keep-Alive` headers.
`"Response cookie header too large"` | The response cookie from the application Web server is too large for Oracle Web Cache.
Application Web Server Events
`"<Admin Server>Concurrent administration exceeded limit"` | The number of concurrent connections (capacity) to the application Web servers has been exceeded
`"Connect Failed: Origin Web Server not accepting Connection"` | The application Web server is not accepting connections from Oracle Web Cache. This event could indicate that the application Web server is down.
`"Last-Modified time` `time` `is AFTER current time` `time``, using current time instead"` | The `Last-Modified` field in the response header is after the current time. Oracle Web Cache will use the current time instead.
`"``Expiration` `time beyond year 2038, setting to MAX_LONG"` `"``time` `time overflow, setting to MAX_LONG"` | The time set for the document goes beyond the year 2038, which is the maximum time limit on Sun Solaris.

## Error Events

Table D-3 lists the common event log error messages.

Table D-3 Error Events

#####

Message | Description
--- | ---
Startup Initialization Events
`"Failed to start the server."` | Oracle Web Cache was unable to open listening ports.
`"Oracle Web Cache Cache failed to initialize."` | Oracle Web Cache was unable to initialize cache module.
`"The server could not initialize"` | Oracle Web Cache was unable to start.
`"The server could not start service thread"` | Oracle Web Cache encountered a thread initialization creation error.
`"An error occured scanning the directory` `directory``"` | Oracle Web Cache encountered a problem while trying to load the Oracle Web Cache Manager help files and/or icons.
Read/Write Events
`"Could not open config file (` `config_file``)"` | Oracle Web Cache is unable to write to its configuration file due to a permissions problem.
`"Could not open log file (` `access_log``)"` | Oracle Web Cache is unable to write to its access log file due to a permissions problem.
UNIX Process Identity Events
`"Failed to find User (` `user``) in /etc/password."` `"Invalid User ID (` `user``)."` | The current user cannot perform this operation. Only the root user or the user specified in the Process Identity page of the Oracle Web Cache Manager can perform this operation. (Administering Oracle Web Cache > Process Identity).
`"Failed to find Group (` `group``) in /etc/group."` `"Invalid Group ID (` `group``)."` | The group ID that the current user is a member of is not valid for this operation.
`"Permission denied when setting User ID (` `user``)."` | The current user that is being set is not the owner of the Oracle Web Cache executables and is not root user. Change the owner to the root user.
`"Permission denied when setting Group ID (` `group``)."` | The current group that is being set is not the owner of the Oracle Web Cache executables.
Oracle Web Cache Memory-Related Events
`"Cache failed to allocate memory for the hash table"` | Oracle Web Cache is unable to allocate memory for cache initialization.
`"Document compression error:` `error``"` | Oracle Web Cache is unable to compress the document in its cache.
`"Cache Index memory allocation error"` | Oracle Web Cache is unable to allocate memory for cache initialization.
`"Out of memory"` | Oracle Web Cache is out of cache memory. The cache memory can be adjusted in the Resource Limits page of Oracle Web Cache Manager. (Administering Oracle Web Cache > Resource Limits).
`"insert failed (memory low during insertion) for slave document` `document``."` | Oracle Web Cache is unable to insert a document into its cache.
`"The system has run critically low on memory"` `` | Oracle Web Cache is running critically low on cache memory. The cache memory can be adjusted in the Resource Limits page of Oracle Web Cache Manager. (Administering Oracle Web Cache > Resource Limits).
Operational Events
`"Invalid XLF Field Name:` `xlf_field``"` | The XLF field specified for the access log file is invalid. The XLF fields are specified in the Access Logs page of Oracle Web Cache Manager. (Administering Web Sites > Access Logs).
`"Too many session definitions"` | The number of allowed session definitions used for cacheability rules for pages with personalized attributes and/or session tracking has exceed the 20 name limit. Reduce the name of session names in Session/Personalized Attribute Definitions page of Oracle Web Cache Manager (Administering Oracle Web Sites > Session Management > Session/Personalized Attribute Definitions).
Application Web Server Events
`"Unable to resolve the IP address of` `ip_address``. Check your DNS setup."` | Oracle Web Cache is unable to resolve the IP address of the application Web server. You can alter application Web server configuration in the password in the Application Web Servers page of Oracle Web Cache Manager. (Administering Oracle Web Cache > Application Web Servers).
`"This product only supports IPv4 for origin server` `ip_address``. Check your DNS setup."` | Oracle Web Cache supports IP version 4. The IP address of the application Web server cannot be resolved because it uses another version of the IP.
Invalidation Events
`"Invalidation Error: Default URL size too small for cache key."` | The URL specified in the invalidation message is too long. Oracle Web Cache has a 3 KB limit on URLs that may or may not include cookies or HTTP request headers.
`"<Invalidation>Check ClientIP failed. Access denied."` | The computer from which the invalidation message came from is not a trusted host. You configure trusted hosts in the Security page of Oracle Web Cache Manager. (Administering Oracle Web Cache > Security).
`"<Invalidation>Username/password check failed. Access denied."` | The invalidation user name and password is not valid. The invalidation user is invalidator. By default, the password is `invalidator`. You can change the password in the Security page of the Oracle Web Cache Manager. (Administering Oracle Web Cache > Security).
`"<Invalidation>Empty entity."` | The invalidation message is empty.
`"<Invalidation>Not an invalidation request."` | The message is not an invalidation message.
`"<Invalidation>XML parsing error."` | The invalidation message uses invalid XML syntax.
`"<Invalidation>Invalid validity level (valid range is 0-9). Level=``level``."` | The validity level specified in the invalidation message is not valid.
`"<Invalidation>Cannot compose key pattern for the requested URI URI."` | The URL specified in the invalidation message does not have a corresponding cacheability rule.
`"<Invalidation>Unrecognized cookies in the invalidation message."` | The cookie(s) specified in the invalidation message are not valid.
`"<Invalidation>URL Node reading error."` | The URL specified in the invalidation message is invalid or or there is a memory allocation problem.

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