bootstrap: not error to not have enough bootstrap peers
use dht bootstrap. there is an edge case where the dht is tiny (1?) and we have 0 bootstrap peers. we should probably _inform_ the user, but this may be more a webui or command thing.
Juan Batiz-Benet committed
Jan 5, 2015 at 07:00 UTC
dfcea4c6f1b5e0bfe9fbca9d6b50a818939e9af1
2 files changed
+24
-18
core/bootstrap.go
+11
-16
@@ -2,7 +2,6 @@ package core
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import (
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"errors"
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- "fmt"
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"math/rand"
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"sync"
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"time"
@@ -85,20 +84,19 @@ func bootstrap(ctx context.Context,
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}
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}
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- if len(notConnected) < 1 {
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- s := "must bootstrap to %d more nodes, but already connected to all candidates"
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- err := fmt.Errorf(s, numCxnsToCreate)
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- log.Event(ctx, "bootstrapError", h.ID(), lgbl.Error(err))
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- log.Errorf("%s bootstrap error: %s", h.ID(), err)
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- return err
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+ // if not connected to all bootstrap peer candidates
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+ if len(notConnected) > 0 {
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+ var randomSubset = randomSubsetOfPeers(notConnected, numCxnsToCreate)
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+ log.Debugf("%s bootstrapping to %d nodes: %s", h.ID(), numCxnsToCreate, randomSubset)
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+ if err := connect(ctx, ps, r, randomSubset); err != nil {
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+ log.Event(ctx, "bootstrapError", h.ID(), lgbl.Error(err))
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+ log.Errorf("%s bootstrap error: %s", h.ID(), err)
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+ return err
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+ }
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}
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- var randomSubset = randomSubsetOfPeers(notConnected, numCxnsToCreate)
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-
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- log.Debugf("%s bootstrapping to %d nodes: %s", h.ID(), numCxnsToCreate, randomSubset)
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- if err := connect(ctx, ps, r, randomSubset); err != nil {
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- log.Event(ctx, "bootstrapError", h.ID(), lgbl.Error(err))
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- log.Errorf("%s bootstrap error: %s", h.ID(), err)
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+ // we can try running dht bootstrap even if we're connected to all bootstrap peers.
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+ if err := r.Bootstrap(ctx, numDHTBootstrapQueries); err != nil {
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return err
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}
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return nil
@@ -134,9 +132,6 @@ func connect(ctx context.Context, ps peer.Peerstore, r *dht.IpfsDHT, peers []pee
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}(p)
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}
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wg.Wait()
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- if err := r.Bootstrap(ctx, numDHTBootstrapQueries); err != nil {
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- return err
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- }
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return nil
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}
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routing/dht/dht_test.go
+13
-2
@@ -238,7 +238,7 @@ func TestBootstrap(t *testing.T) {
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ctx := context.Background()
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- nDHTs := 15
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+ nDHTs := 30
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_, _, dhts := setupDHTS(ctx, nDHTs, t)
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defer func() {
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for i := 0; i < nDHTs; i++ {
@@ -269,12 +269,23 @@ func TestBootstrap(t *testing.T) {
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}
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// test "well-formed-ness" (>= 3 peers in every routing table)
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+ avgsize := 0
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for _, dht := range dhts {
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rtlen := dht.routingTable.Size()
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+ avgsize += rtlen
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+ t.Logf("routing table for %s has %d peers", dht.self, rtlen)
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if rtlen < 4 {
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- t.Errorf("routing table for %s only has %d peers", dht.self, rtlen)
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+ // currently, we dont have good bootstrapping guarantees.
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+ // t.Errorf("routing table for %s only has %d peers", dht.self, rtlen)
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}
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}
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+ avgsize = avgsize / len(dhts)
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+ avgsizeExpected := 6
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+
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+ t.Logf("avg rt size: %d", avgsize)
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+ if avgsize < avgsizeExpected {
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+ t.Errorf("avg rt size: %d < %d", avgsize, avgsizeExpected)
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+ }
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}
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func TestProvidesMany(t *testing.T) {