Watch Explanation on YouTube
how wget retry can cause some unintended problems
Link URL : https://youtu.be/ph6lxqne55Q
- To make sure that wget does not do a retry
1
$ wget https://www.google.com -T 5 -t 1
above -t 1 means (retry) is set to 1, so there are no retries.
above -T means (timeout) is set to 5, so command will wait for 5 seconds only
- Documentation says:
-t number –tries=number Set number of tries to number. Specify 0 or inf for infinite retrying.
The default is to retry 20 times, with the exception of fatal errors like “connection refused” or “not found” (404), which are not retried.-T seconds –timeout=seconds Set the network timeout to seconds seconds.
This is equivalent to specifying –dns-timeout, –connect-timeout, and –read-timeout, all at the same time.When interacting with the network, Wget can check for timeout and abort the operation if it takes too long.
This prevents anomalies like hanging reads and infinite connects. The only timeout enabled by default is a 900-second read timeout.
Setting a timeout to 0 disables it altogether.
Unless you know what you are doing, it is best not to change the default timeout settings.All timeout-related options accept decimal values, as well as subsecond values.
For example, 0.1 seconds is a legal (though unwise) choice of timeout.
Subsecond timeouts are useful for checking server response times or for testing network latency.