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  • #23985
Closed (moved) (moved)
Open
Created Oct 25, 2017 by George Kadianakis@asn

If less than 15 missing mds, Tor will delay md download for 10 mins

In launch_descriptor_downloads() if we are missing between 1 to 15 mds (MAX_DL_TO_DELAY), Tor will delay the md download for 10 mins (or until we are missing >= 16 mds). See TestingClientMaxIntervalWithoutRequest for the 10 min delay.

This is bad when comboed with #21969 (moved) since if one of the 15 missing mds is for one of your top two primary guards, tor will hang for 10 mins with missing descriptor for primary guards before bootstrapping.

The probability of this happening is small (about 0.004 I think for 6.4k mds in total) but given the amount of clients we have this is bound to happen for some of them.

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