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author | Lorenzo Colitti <lorenzo@google.com> | 2017-09-05 05:26:18 +0000 |
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committer | android-build-merger <android-build-merger@google.com> | 2017-09-05 05:26:18 +0000 |
commit | b1bc5e7f49baaaaea9d45975b8946ed6093710f0 (patch) | |
tree | 8d6ee6e3fd25fa17f91ad8b6ed8b20b160a49085 | |
parent | ad146e6aa3410935caca92678f4a190656c8114a (diff) | |
parent | a294ae3d3fb44895087b15a873c3428fa18d943f (diff) | |
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Merge "Increase the maximum exponential backoff for DNS64 queries." am: e477c86203 am: 0ca87dfcd8 am: 65f4d21210
am: a294ae3d3f
Change-Id: I44c3f3ead813de4c5e09d32d27e6ea98bacd418a
-rw-r--r-- | config.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -180,8 +180,11 @@ void dns64_detection(unsigned net_id) { logmsg(ANDROID_LOG_WARN, "dns64_detection -- error, sleeping for %d seconds", backoff_sleep); sleep(backoff_sleep); backoff_sleep *= 2; - if(backoff_sleep >= 120) { - backoff_sleep = 120; + if(backoff_sleep >= 1800) { + // Scale down to one DNS query per half hour. Unnecessary DNS queries waste power, and the + // benefit is minimal (basically, only limited to the case where a network goes from IPv6-only + // to IPv6 with NAT64). + backoff_sleep = 1800; } } } |