Cache result codes in Squid- and Netscape-format log files
Cache result codes in the Squid and Netscape log files:
| Cache Result Code | Description |
|---|---|
| TCP_HIT | Indicates that a valid copy of the requested object was in the cache and that the proxy sent the object to the client. |
| TCP_MISS | Indicates that the requested object was not in the cache and that the proxy retrieved the object from the origin server or from a parent proxy and sent it to the client. |
| TCP_REFRESH_HIT | Indicates that the object was in the cache but was stale. Content Gateway made an if-modified-since request to the origin server and the origin server sent a 304 not-modified response. The proxy sent the cached object to the client. |
| TCP_REF_FAIL_HIT | Indicates that the object was in the cache but was stale. Content Gateway made an if-modified-since request to the origin server but the server did not respond. The proxy sent the cached object to the client. |
| TCP_REFRESH_MISS | Indicates that the object was in the cache but was stale. Content Gateway made an if-modified-since request to the origin server and the server returned a new object. The proxy served the new object to the client. |
| TCP_CLIENT_REFRESH | Indicates that the client issued a request with a no- cache header. The proxy obtained the requested object from the origin server and sent a copy to the client. Content Gateway refreshes any previous copy of the object in the cache. |
| TCP_IMS_HIT | Indicates that the client issued an if-modified-since request and the object was in the cache and fresher than the IMS date, or an if-modified-since to the origin server found that the cache object was fresh. The proxy served the cached object to the client. |
| TCP_IMS_MISS | Indicates that the client issued an if-modified-since request and the object was either not in cache or was stale in cache. The proxy sent an if-modified-since request to the origin server and received the new object. The proxy sent the updated object to the client. |
| TCP_SWAPFAIL | Indicates that the object was in the cache but could not be accessed. The client did not receive the object. |
| ERR_CLIENT_ABORT | Indicates that the client disconnected before the complete object was sent. |
| ERR_CONNECT_FAIL | Indicates that Content Gateway could not reach the origin server. |
| ERR_DNS_FAIL | Indicates that the Domain Name Server could not resolve the origin server name, or that no Domain Name Server could be reached. |
| ERR_INVALID_REQ | Indicates that the client HTTP request was invalid. Content Gateway forwards requests with unknown methods to the origin server. |
| ERR_READ_TIMEOUT | Indicates that the origin server did not respond to the Content Gateway request within the timeout interval. |
| ERR_PROXY_DENIED | Indicates that client service was denied by access control configuration. |
| ERR_UNKNOWN | Indicates that the client connected but subsequently disconnected without sending a request. |