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[p2p/pex] connect to more than 10 peers (#2169)

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* [p2p/pex] connect to more than 10 peers

also, remove DefaultMinNumOutboundPeers because a) I am not sure it's
needed b) it's super confusing

look closely

```
maxPeers := sw.config.MaxNumPeers - DefaultMinNumOutboundPeers
if maxPeers <= sw.peers.Size() {
  sw.Logger.Info("Ignoring inbound connection: already have enough peers", "address", inConn.RemoteAddr().String(), "numPeers", sw.peers.Size(), "max", maxPeers)
```

we print maxPeers = config.MaxPeers - DefaultMinNumOutboundPeers. So we
may not have enough peers even though we say we have enough.

Refs #2130

* update spec

* replace MaxNumPeers with MaxNumInboundPeers/MaxNumOutboundPeers

Refs #2130

* update changelog

* make max rpc conns formula visible to users

* update spec

* docs: note max outbound peers excludes persistent
This commit is contained in:
Anton Kaliaev
2018-08-15 02:25:56 +04:00
committed by Ethan Buchman
parent db53dc5fd4
commit 6fad8eaf5a
7 changed files with 60 additions and 32 deletions
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13
docs/tendermint-core/configuration.md
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@@ -77,6 +77,8 @@ grpc_laddr = ""
# If you want to accept more significant number than the default, make sure
# you increase your OS limits.
# 0 - unlimited.
# Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files}
# 1024 - 40 - 10 - 50 = 924 = ~900
grpc_max_open_connections = 900
# Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool
@@ -87,7 +89,9 @@ unsafe = false
# If you want to accept more significant number than the default, make sure
# you increase your OS limits.
# 0 - unlimited.
max_open_connections = 450
# Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files}
# 1024 - 40 - 10 - 50 = 924 = ~900
max_open_connections = 900
##### peer to peer configuration options #####
[p2p]
@@ -113,8 +117,11 @@ addr_book_strict = true
# Time to wait before flushing messages out on the connection, in ms
flush_throttle_timeout = 100
# Maximum number of peers to connect to
max_num_peers = 50
# Maximum number of inbound peers
max_num_inbound_peers = 40
# Maximum number of outbound peers to connect to
max_num_outbound_peers = 10
# Maximum size of a message packet payload, in bytes
max_packet_msg_payload_size = 1024