default is 15 minutes.
DOC_END
+NAME: write_timeout
+COMMENT: time-units
+TYPE: time_t
+LOC: Config.Timeout.write
+DEFAULT: 15 minutes
+DOC_START
+ This timeout is tracked for all connections that have data
+ available for writing and are waiting for the socket to become
+ ready. After each successful write, the timeout is extended by
+ the configured amount. If Squid has data to write but the
+ connection is not ready for the configured duration, the
+ transaction associated with the connection is terminated. The
+ default is 15 minutes.
+DOC_END
+
NAME: request_timeout
TYPE: time_t
LOC: Config.Timeout.request