Merge pull request #3822 from hashicorp/rtt-spam

Updates Serf to pickup fix for spammy zero RTT log messages.
This commit is contained in:
James Phillips 2018-01-19 15:55:35 -08:00 committed by GitHub
commit a93c2edbe6
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3 changed files with 16 additions and 4 deletions

View file

@ -6,6 +6,8 @@ import (
"sort"
"sync"
"time"
"github.com/armon/go-metrics"
)
// Client manages the estimated network coordinate for a given node, and adjusts
@ -205,10 +207,19 @@ func (c *Client) Update(node string, other *Coordinate, rtt time.Duration) (*Coo
return nil, err
}
// The code down below can handle zero RTTs, which we have seen in
// https://github.com/hashicorp/consul/issues/3789, presumably in
// environments with coarse-grained monotonic clocks (we are still
// trying to pin this down). In any event, this is ok from a code PoV
// so we don't need to alert operators with spammy messages. We did
// add a counter so this is still observable, though.
const maxRTT = 10 * time.Second
if rtt <= 0 || rtt > maxRTT {
if rtt < 0 || rtt > maxRTT {
return nil, fmt.Errorf("round trip time not in valid range, duration %v is not a positive value less than %v ", rtt, maxRTT)
}
if rtt == 0 {
metrics.IncrCounter([]string{"serf", "coordinate", "zero-rtt"}, 1)
}
rttSeconds := c.latencyFilter(node, rtt.Seconds())
c.updateVivaldi(other, rttSeconds)

View file

@ -68,7 +68,8 @@ func (p *pingDelegate) NotifyPingComplete(other *memberlist.Node, rtt time.Durat
before := p.serf.coordClient.GetCoordinate()
after, err := p.serf.coordClient.Update(other.Name, &coord, rtt)
if err != nil {
p.serf.logger.Printf("[ERR] serf: Rejected coordinate from %s: %v\n",
metrics.IncrCounter([]string{"serf", "coordinate", "rejected"}, 1)
p.serf.logger.Printf("[TRACE] serf: Rejected coordinate from %s: %v\n",
other.Name, err)
return
}

4
vendor/vendor.json vendored
View file

@ -63,8 +63,8 @@
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{"path":"github.com/hashicorp/raft","checksumSHA1":"JjJtGJi1ywWhVhs/PvTXxe4TeD8=","revision":"6d14f0c70869faabd9e60ba7ed88a6cbbd6a661f","revisionTime":"2017-10-03T22:09:13Z","version":"v1.0.0","versionExact":"v1.0.0"},
{"path":"github.com/hashicorp/raft-boltdb","checksumSHA1":"QAxukkv54/iIvLfsUP6IK4R0m/A=","revision":"d1e82c1ec3f15ee991f7cc7ffd5b67ff6f5bbaee","revisionTime":"2015-02-01T20:08:39Z"},
{"path":"github.com/hashicorp/serf/coordinate","checksumSHA1":"mS15CkImPzXYsgNwl3Mt9Gh3Vb0=","comment":"v0.7.0-66-g6c4672d","revision":"c20a0b1b1ea9eb8168bcdec0116688fa9254e449","revisionTime":"2017-10-22T02:00:50Z"},
{"path":"github.com/hashicorp/serf/serf","checksumSHA1":"NegZzEwYOlfkbvy+jTBkX3OBcRM=","comment":"v0.7.0-66-g6c4672d","revision":"a110af454b635c75adc2b7eee541af2c68666d97","revisionTime":"2017-12-07T01:04:04Z"},
{"path":"github.com/hashicorp/serf/coordinate","checksumSHA1":"0PeWsO2aI+2PgVYlYlDPKfzCLEQ=","comment":"v0.7.0-66-g6c4672d","revision":"b6017ae61f4420ed0c02d5eeeb9ff3fc02953f14","revisionTime":"2018-01-19T22:43:00Z"},
{"path":"github.com/hashicorp/serf/serf","checksumSHA1":"QGImnWfhk0ILLZszcf3vRs/Ft7g=","comment":"v0.7.0-66-g6c4672d","revision":"b6017ae61f4420ed0c02d5eeeb9ff3fc02953f14","revisionTime":"2018-01-19T22:43:00Z"},
{"path":"github.com/hashicorp/yamux","checksumSHA1":"ZhK6IO2XN81Y+3RAjTcVm1Ic7oU=","revision":"d1caa6c97c9fc1cc9e83bbe34d0603f9ff0ce8bd","revisionTime":"2016-07-20T23:31:40Z"},
{"path":"github.com/mattn/go-isatty","checksumSHA1":"xZuhljnmBysJPta/lMyYmJdujCg=","revision":"66b8e73f3f5cda9f96b69efd03dd3d7fc4a5cdb8","revisionTime":"2016-08-06T12:27:52Z"},
{"path":"github.com/miekg/dns","checksumSHA1":"Jo+pItYOocIRdoFL0fc4nHhUEJY=","revision":"bbca4873b326f5dc54bfe31148446d4ed79a5a02","revisionTime":"2017-08-08T22:19:10Z"},