The Apache error log records any Apache-level issues, which are usually general server issues, including capacity problems,
.htaccess problems, and missing files.
For a list of the log files handled by Acquia Cloud, including accessing these log files, log file retention, and their locations, see About Acquia Cloud logging. You can also review information about how to streaming Apache log entries in real time from your browser.
Parsing the log file
The following line is a representative example of the data written into your website's Apache error log:
[Fri Aug 18 20:40:36.849360 2017] [access_compat:error] [pid 11069] [client 10.0.0.1:19924] AH01797: client denied by server configuration: /var/www/html/alphabeta/docroot/index.php
Each of the items in the Apache access log is noted in the following table, along with its description:
||The date and time of error.|
||The severity of this issue|
||The process ID (
||The internal IP address of the balancer that forwarded the request to the server|
|4||All other information in the line||The message, which will vary from line to line|
For more information about the expected format of Apache error logs, see Apache's documentation.