feat: track failed/successful dials per-address #2033
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Instead of tracking which peer we failed to dial, track dial success or failure on a per-address basis. This will let us detect when IPv6 is unsupported or certain transports (e.g. UDP ones) are blocked. Refs: 2010
| existingAddr.lastFailure = Number(addr.lastFailure) | ||
| } | ||
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| if (addr.lastSuccess != null) { | ||
| existingAddr.lastSuccess = Number(addr.lastSuccess) |
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Is there a good reason to use Number here instead of BigInt as is used elsewhere in this PR?
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The value is a timestamp, the max value of which can exceed 32 bits so we need to use a 64 bit number in the protobuf to store it, which means we need to represent it as a BigInt, but this is overkill for actual time values.
We can refactor this once ipfs/protons#112 is implemented to have protons serialize/deserialize to Number instead of BigInt.
| @@ -244,4 +241,53 @@ describe('merge', () => { | |||
| expect(updated).to.have.property('tags').that.deep.equals(original.tags) | |||
| expect(updated).to.have.property('protocols').that.deep.equals(original.protocols) | |||
| }) | |||
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| it('merges addresses', async () => { | |||
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| it('merges addresses', async () => { | |
| it('merges lastFailure & lastSuccess on peer addresses', async () => { |
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This test also ensures multiaddr and isCertified values are merged and not lost so they are missing from the test name if you want it to be exhaustive, or it can remain as it is.
| if (pendingDial.peerId != null) { | ||
| // mark multiaddr dial as failure | ||
| await this._updateAddressStatus(pendingDial.peerId, addr, false) | ||
| } |
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This check implies that we may also attempt to dial peers where peerId == null. Can we log when that is the case, and that we're not marking peer as having a failed dial?
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we may also attempt to dial peers where peerId == null
Yes, this is the case when dialing a multiaddr without a peer id, e.g. /dnsaddr/bootstrap.libp2p.io
and that we're not marking peer as having a failed dial?
We can't mark the peer as having a failed dial as peer data is keyed on the peer id - if we don't know the peer id we can't mark anything as having failed.
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Following from previous conversations I think this is the right direction, is this ready for review @achingbrain ?
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LGTM but we should perhaps merge #2150 into this before merging this as it effectively adds no enhancement without the sorting functionality. |
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Instead of tracking which peer we failed to dial, track dial success or failure on a per-address basis.
This will let us detect when IPv6 is unsupported or certain transports (e.g. UDP ones) are blocked.
Refs: #2010