From 3b31df8301fd7dfb78bf9eaf9227d40c9bf12182 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Mon, 3 Aug 2015 14:25:49 +0200 Subject: resolved: transaction - increase number of retry attempts With the exponential backoff, we can perform more requests in the same amount of time, so bump this a bit. In case of large RTT this may be necessary in order not to regress, and in case of large packet-loss it will make us more robust. The latter is particularly relevant once we start probing for features (and hence may see packet-loss until we settle on the right feature level). --- src/resolve/resolved-dns-transaction.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/resolve/resolved-dns-transaction.h') diff --git a/src/resolve/resolved-dns-transaction.h b/src/resolve/resolved-dns-transaction.h index 007f7e5959..d8a5647609 100644 --- a/src/resolve/resolved-dns-transaction.h +++ b/src/resolve/resolved-dns-transaction.h @@ -100,7 +100,7 @@ DnsTransactionState dns_transaction_state_from_string(const char *s) _pure_; #define LLMNR_JITTER_INTERVAL_USEC (100 * USEC_PER_MSEC) /* Maximum attempts to send DNS requests, across all DNS servers */ -#define DNS_TRANSACTION_ATTEMPTS_MAX 8 +#define DNS_TRANSACTION_ATTEMPTS_MAX 16 /* Maximum attempts to send LLMNR requests, see RFC 4795 Section 2.7 */ #define LLMNR_TRANSACTION_ATTEMPTS_MAX 3 -- cgit v1.2.3-54-g00ecf