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Fix some provider subsystem performance issues #319

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merged 10 commits into from
Apr 13, 2019
Merged

Fix some provider subsystem performance issues #319

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95a6c25
providers: use raw cids as map keys
Stebalien Apr 13, 2019
0697369
providers: don't load into the cache on write
Stebalien Apr 13, 2019
2a3899b
providers: improve time parsing error checking
Stebalien Apr 13, 2019
24c3841
providers: delete expired provider records on load
Stebalien Apr 13, 2019
3c9d044
providers: add some documentation
Stebalien Apr 13, 2019
f4e6d42
providers: make sure to close provider query, even on error
Stebalien Apr 13, 2019
a3b9767
providers: use the non-locking LRU
Stebalien Apr 13, 2019
fbb29ea
providers: optimize GC
Stebalien Apr 13, 2019
b76de45
providers: improve test coverage
Stebalien Apr 13, 2019
7bdc7a5
dep: update go-datastore
Stebalien Apr 13, 2019
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6 changes: 3 additions & 3 deletions dht_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -757,13 +757,13 @@ func TestProvidesMany(t *testing.T) {
}
}

providers := make(map[string]peer.ID)
providers := make(map[cid.Cid]peer.ID)

d := 0
for _, c := range testCaseCids {
d = (d + 1) % len(dhts)
dht := dhts[d]
providers[c.KeyString()] = dht.self
providers[c] = dht.self

t.Logf("announcing provider for %s", c)
if err := dht.Provide(ctx, c, true); err != nil {
Expand All @@ -783,7 +783,7 @@ func TestProvidesMany(t *testing.T) {
getProvider := func(dht *IpfsDHT, k cid.Cid) {
defer wg.Done()

expected := providers[k.KeyString()]
expected := providers[k]

provchan := dht.FindProvidersAsync(ctxT, k, 1)
select {
Expand Down
2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ require (
github.com/gogo/protobuf v1.2.1
github.com/hashicorp/golang-lru v0.5.1
github.com/ipfs/go-cid v0.0.1
github.com/ipfs/go-datastore v0.0.1
github.com/ipfs/go-datastore v0.0.4
github.com/ipfs/go-ipfs-util v0.0.1
github.com/ipfs/go-log v0.0.1
github.com/ipfs/go-todocounter v0.0.1
Expand Down
20 changes: 8 additions & 12 deletions go.sum
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,24 +30,27 @@ github.com/golang/protobuf v1.3.0/go.mod h1:Qd/q+1AKNOZr9uGQzbzCmRO6sUih6GTPZv6a
github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
github.com/gxed/hashland/keccakpg v0.0.1 h1:wrk3uMNaMxbXiHibbPO4S0ymqJMm41WiudyFSs7UnsU=
github.com/gxed/hashland/keccakpg v0.0.1/go.mod h1:kRzw3HkwxFU1mpmPP8v1WyQzwdGfmKFJ6tItnhQ67kU=
github.com/gxed/hashland/murmur3 v0.0.1 h1:SheiaIt0sda5K+8FLz952/1iWS9zrnKsEJaOJu4ZbSc=
github.com/gxed/hashland/murmur3 v0.0.1/go.mod h1:KjXop02n4/ckmZSnY2+HKcLud/tcmvhST0bie/0lS48=
github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/go-multierror v1.0.0 h1:iVjPR7a6H0tWELX5NxNe7bYopibicUzc7uPribsnS6o=
github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/huin/goupnp v1.0.0 h1:wg75sLpL6DZqwHQN6E1Cfk6mtfzS45z8OV+ic+DtHRo=
github.com/huin/goupnp v1.0.0/go.mod h1:n9v9KO1tAxYH82qOn+UTIFQDmx5n1Zxd/ClZDMX7Bnc=
github.com/huin/goutil v0.0.0-20170803182201-1ca381bf3150/go.mod h1:PpLOETDnJ0o3iZrZfqZzyLl6l7F3c6L1oWn7OICBi6o=
github.com/ipfs/go-cid v0.0.1 h1:GBjWPktLnNyX0JiQCNFpUuUSoMw5KMyqrsejHYlILBE=
github.com/ipfs/go-cid v0.0.1/go.mod h1:GHWU/WuQdMPmIosc4Yn1bcCT7dSeX4lBafM7iqUPQvM=
github.com/ipfs/go-datastore v0.0.1 h1:AW/KZCScnBWlSb5JbnEnLKFWXL224LBEh/9KXXOrUms=
github.com/ipfs/go-datastore v0.0.1/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAKBGh803qeE=
github.com/ipfs/go-datastore v0.0.4 h1:FZgezmkbkMGXal1nXXFMyCKkWNglxK1c4jVqO1Emlso=
github.com/ipfs/go-datastore v0.0.4/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAKBGh803qeE=
github.com/ipfs/go-detect-race v0.0.1 h1:qX/xay2W3E4Q1U7d9lNs1sU9nvguX0a7319XbyQ6cOk=
github.com/ipfs/go-detect-race v0.0.1/go.mod h1:8BNT7shDZPo99Q74BpGMK+4D8Mn4j46UU0LZ723meps=
github.com/ipfs/go-ds-badger v0.0.2/go.mod h1:Y3QpeSFWQf6MopLTiZD+VT6IC1yZqaGmjvRcKeSGij8=
Expand All @@ -59,6 +62,7 @@ github.com/ipfs/go-log v0.0.1 h1:9XTUN/rW64BCG1YhPK9Hoy3q8nr4gOmHHBpgFdfw6Lc=
github.com/ipfs/go-log v0.0.1/go.mod h1:kL1d2/hzSpI0thNYjiKfjanbVNU+IIGA/WnNESY9leM=
github.com/ipfs/go-todocounter v0.0.1 h1:kITWA5ZcQZfrUnDNkRn04Xzh0YFaDFXsoO2A81Eb6Lw=
github.com/ipfs/go-todocounter v0.0.1/go.mod h1:l5aErvQc8qKE2r7NDMjmq5UNAvuZy0rC8BHOplkWvZ4=
github.com/jackpal/gateway v1.0.5 h1:qzXWUJfuMdlLMtt0a3Dgt+xkWQiA5itDEITVJtuSwMc=
github.com/jackpal/gateway v1.0.5/go.mod h1:lTpwd4ACLXmpyiCTRtfiNyVnUmqT9RivzCDQetPfnjA=
github.com/jackpal/go-nat-pmp v1.0.1 h1:i0LektDkO1QlrTm/cSuP+PyBCDnYvjPLGl4LdWEMiaA=
github.com/jackpal/go-nat-pmp v1.0.1/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc=
Expand Down Expand Up @@ -97,11 +101,9 @@ github.com/libp2p/go-libp2p v0.0.12/go.mod h1:l8kmLMc4DToz2TtA0aWEaE4/jVMALRKw8K
github.com/libp2p/go-libp2p-autonat v0.0.4/go.mod h1:fs71q5Xk+pdnKU014o2iq1RhMs9/PMaG5zXRFNnIIT4=
github.com/libp2p/go-libp2p-blankhost v0.0.1 h1:/mZuuiwntNR8RywnCFlGHLKrKLYne+qciBpQXWqp5fk=
github.com/libp2p/go-libp2p-blankhost v0.0.1/go.mod h1:Ibpbw/7cPPYwFb7PACIWdvxxv0t0XCCI10t7czjAjTc=
github.com/libp2p/go-libp2p-circuit v0.0.4 h1:yOgEadnSVFj3e9KLBuLG+edqCImeav0VXxXvcimpOUQ=
github.com/libp2p/go-libp2p-circuit v0.0.4/go.mod h1:p1cHJnB9xnX5/1vZLkXgKwmNEOQQuF/Hp+SkATXnXYk=
github.com/libp2p/go-libp2p-crypto v0.0.1 h1:JNQd8CmoGTohO/akqrH16ewsqZpci2CbgYH/LmYl8gw=
github.com/libp2p/go-libp2p-crypto v0.0.1/go.mod h1:yJkNyDmO341d5wwXxDUGO0LykUVT72ImHNUqh5D/dBE=
github.com/libp2p/go-libp2p-discovery v0.0.1 h1:VkjCKmJQMwpDUwtA8Qc1z3TQAHJgQ5nGQ6cdN0wQXOw=
github.com/libp2p/go-libp2p-discovery v0.0.1/go.mod h1:ZkkF9xIFRLA1xCc7bstYFkd80gBGK8Fc1JqGoU2i+zI=
github.com/libp2p/go-libp2p-host v0.0.1 h1:dnqusU+DheGcdxrE718kG4XgHNuL2n9eEv8Rg5zy8hQ=
github.com/libp2p/go-libp2p-host v0.0.1/go.mod h1:qWd+H1yuU0m5CwzAkvbSjqKairayEHdR5MMl7Cwa7Go=
Expand All @@ -117,15 +119,13 @@ github.com/libp2p/go-libp2p-metrics v0.0.1 h1:yumdPC/P2VzINdmcKZd0pciSUCpou+s0lw
github.com/libp2p/go-libp2p-metrics v0.0.1/go.mod h1:jQJ95SXXA/K1VZi13h52WZMa9ja78zjyy5rspMsC/08=
github.com/libp2p/go-libp2p-nat v0.0.4 h1:+KXK324yaY701On8a0aGjTnw8467kW3ExKcqW2wwmyw=
github.com/libp2p/go-libp2p-nat v0.0.4/go.mod h1:N9Js/zVtAXqaeT99cXgTV9e75KpnWCvVOiGzlcHmBbY=
github.com/libp2p/go-libp2p-net v0.0.1 h1:xJ4Vh4yKF/XKb8fd1Ev0ebAGzVjMxXzrxG2kjtU+F5Q=
github.com/libp2p/go-libp2p-net v0.0.1/go.mod h1:Yt3zgmlsHOgUWSXmt5V/Jpz9upuJBE8EgNU9DrCcR8c=
github.com/libp2p/go-libp2p-net v0.0.2 h1:qP06u4TYXfl7uW/hzqPhlVVTSA2nw1B/bHBJaUnbh6M=
github.com/libp2p/go-libp2p-net v0.0.2/go.mod h1:Yt3zgmlsHOgUWSXmt5V/Jpz9upuJBE8EgNU9DrCcR8c=
github.com/libp2p/go-libp2p-netutil v0.0.1 h1:LgD6+skofkOx8z6odD9+MZHKjupv3ng1u6KRhaADTnA=
github.com/libp2p/go-libp2p-netutil v0.0.1/go.mod h1:GdusFvujWZI9Vt0X5BKqwWWmZFxecf9Gt03cKxm2f/Q=
github.com/libp2p/go-libp2p-peer v0.0.1 h1:0qwAOljzYewINrU+Kndoc+1jAL7vzY/oY2Go4DCGfyY=
github.com/libp2p/go-libp2p-peer v0.0.1/go.mod h1:nXQvOBbwVqoP+T5Y5nCjeH4sP9IX/J0AMzcDUVruVoo=
github.com/libp2p/go-libp2p-peerstore v0.0.1 h1:twKovq8YK5trLrd3nB7PD2Zu9JcyAIdm7Bz9yBWjhq8=
github.com/libp2p/go-libp2p-peerstore v0.0.1/go.mod h1:RabLyPVJLuNQ+GFyoEkfi8H4Ti6k/HtZJ7YKgtSq+20=
github.com/libp2p/go-libp2p-peerstore v0.0.2 h1:Lirt3A1Oq11jszJ4SPNBo8chNv61UWXE538KUEGxTVk=
github.com/libp2p/go-libp2p-peerstore v0.0.2/go.mod h1:RabLyPVJLuNQ+GFyoEkfi8H4Ti6k/HtZJ7YKgtSq+20=
Expand All @@ -137,7 +137,6 @@ github.com/libp2p/go-libp2p-routing v0.0.1 h1:hPMAWktf9rYi3ME4MG48qE7dq1ofJxiQbf
github.com/libp2p/go-libp2p-routing v0.0.1/go.mod h1:N51q3yTr4Zdr7V8Jt2JIktVU+3xBBylx1MZeVA6t1Ys=
github.com/libp2p/go-libp2p-secio v0.0.1 h1:CqE/RdsizOwItdgLe632iyft/w0tshDLmZGAiKDcUAI=
github.com/libp2p/go-libp2p-secio v0.0.1/go.mod h1:IdG6iQybdcYmbTzxp4J5dwtUEDTOvZrT0opIDVNPrJs=
github.com/libp2p/go-libp2p-swarm v0.0.1 h1:Vne+hjaDwXqzgNwQ2vb2YKbnbOTyXjtS47stT66Apc4=
github.com/libp2p/go-libp2p-swarm v0.0.1/go.mod h1:mh+KZxkbd3lQnveQ3j2q60BM1Cw2mX36XXQqwfPOShs=
github.com/libp2p/go-libp2p-swarm v0.0.2 h1:cpHHXTeU2IgUu8LPemF7vaLPGtVC6VxMoll2EwqlC+E=
github.com/libp2p/go-libp2p-swarm v0.0.2/go.mod h1:n0cAAcKyndIrJWctQwjqXlAdIPBZzfdpBjx1SSvz30g=
Expand All @@ -156,13 +155,13 @@ github.com/libp2p/go-nat v0.0.3 h1:l6fKV+p0Xa354EqQOQP+d8CivdLM4kl5GxC1hSc/UeI=
github.com/libp2p/go-nat v0.0.3/go.mod h1:88nUEt0k0JD45Bk93NIwDqjlhiOwOoV36GchpcVc1yI=
github.com/libp2p/go-reuseport v0.0.1 h1:7PhkfH73VXfPJYKQ6JwS5I/eVcoyYi9IMNGc6FWpFLw=
github.com/libp2p/go-reuseport v0.0.1/go.mod h1:jn6RmB1ufnQwl0Q1f+YxAj8isJgDCQzaaxIFYDhcYEA=
github.com/libp2p/go-reuseport-transport v0.0.1 h1:UIRneNxLDmEGNjGHpIiWzSWkZ5bhxMCP9x3Vh7BSc7E=
github.com/libp2p/go-reuseport-transport v0.0.1/go.mod h1:YkbSDrvjUVDL6b8XqriyA20obEtsW9BLkuOUyQAOCbs=
github.com/libp2p/go-reuseport-transport v0.0.2 h1:WglMwyXyBu61CMkjCCtnmqNqnjib0GIEjMiHTwR/KN4=
github.com/libp2p/go-reuseport-transport v0.0.2/go.mod h1:YkbSDrvjUVDL6b8XqriyA20obEtsW9BLkuOUyQAOCbs=
github.com/libp2p/go-stream-muxer v0.0.1 h1:Ce6e2Pyu+b5MC1k3eeFtAax0pW4gc6MosYSLV05UeLw=
github.com/libp2p/go-stream-muxer v0.0.1/go.mod h1:bAo8x7YkSpadMTbtTaxGVHWUQsR/l5MEaHbKaliuT14=
github.com/libp2p/go-tcp-transport v0.0.1 h1:WyvJVw2lYAnr6CU+GZZ4oCt06fvORlmvBlFX2+ZpZDM=
github.com/libp2p/go-tcp-transport v0.0.1/go.mod h1:mnjg0o0O5TmXUaUIanYPUqkW4+u6mK0en8rlpA6BBTs=
github.com/libp2p/go-tcp-transport v0.0.2 h1:EzOSRaHpyrGpJ5qe+9SaxJM1mrWlkSLFfNTufUkq0lg=
github.com/libp2p/go-tcp-transport v0.0.2/go.mod h1:VjZFHasNJ0QiJQNNwiFDy25qyGWTXQWs8GM5DR4/L1k=
github.com/libp2p/go-testutil v0.0.1 h1:Xg+O0G2HIMfHqBOBDcMS1iSZJ3GEcId4qOxCQvsGZHk=
github.com/libp2p/go-testutil v0.0.1/go.mod h1:iAcJc/DKJQanJ5ws2V+u5ywdL2n12X1WbbEG+Jjy69I=
Expand Down Expand Up @@ -220,7 +219,6 @@ github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible h1:iqksILj8STw03
github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible/go.mod h1:34LEDbeKFZInPUrAG+bjuJmUXONGdEFW7XL0SpTY1y4=
github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible h1:BdYHctE9HJZLquG9tpTdwWcbG4FaX6tVKPGjCGgiVxo=
github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible/go.mod h1:dRWHHvc4HDQSHh9gbKEBbUZ+f2Q8iZTPG3UOGYODxSQ=
github.com/whyrusleeping/go-smux-yamux v2.0.8+incompatible h1:IGm/UP/JpEFS6D787sZnZg7RA6fZIR9c/Ms9DeAVNuk=
github.com/whyrusleeping/go-smux-yamux v2.0.8+incompatible/go.mod h1:6qHUzBXUbB9MXmw3AUdB52L8sEb/hScCqOdW2kj/wuI=
github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible h1:nVkExQ7pYlN9e45LcqTCOiDD0904fjtm0flnHZGbXkw=
github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible/go.mod h1:6qHUzBXUbB9MXmw3AUdB52L8sEb/hScCqOdW2kj/wuI=
Expand All @@ -233,7 +231,6 @@ github.com/whyrusleeping/yamux v1.1.5 h1:4CK3aUUJQu0qpKZv5gEWJjNOQtdbdDhVVS6PJ+H
github.com/whyrusleeping/yamux v1.1.5/go.mod h1:E8LnQQ8HKx5KD29HZFUwM1PxCOdPRzGwur1mcYhXcD8=
golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190225124518-7f87c0fbb88b h1:+/WWzjwW6gidDJnMKWLKLX1gxn7irUTF1fLpQovfQ5M=
golang.org/x/crypto v0.0.0-20190225124518-7f87c0fbb88b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190228161510-8dd112bcdc25 h1:jsG6UpNLt9iAsb0S2AGW28DveNzzgmbXR+ENoPjUeIU=
golang.org/x/crypto v0.0.0-20190228161510-8dd112bcdc25/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
Expand All @@ -246,7 +243,6 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190219092855-153ac476189d/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8=
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190228124157-a34e9553db1e h1:ZytStCyV048ZqDsWHiYDdoI2Vd4msMcrDECFxS+tL9c=
golang.org/x/sys v0.0.0-20190228124157-a34e9553db1e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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