- How to read logs
- ================
-
- Walk through example
- --------------------
-
- We first create three connections (mempool, consensus and query) to the
- application (running ``kvstore`` locally in this case).
-
- ::
-
- I[10-04|13:54:27.364] Starting multiAppConn module=proxy impl=multiAppConn
- I[10-04|13:54:27.366] Starting localClient module=abci-client connection=query impl=localClient
- I[10-04|13:54:27.366] Starting localClient module=abci-client connection=mempool impl=localClient
- I[10-04|13:54:27.367] Starting localClient module=abci-client connection=consensus impl=localClient
-
- Then Tendermint Core and the application perform a handshake.
-
- ::
-
- I[10-04|13:54:27.367] ABCI Handshake module=consensus appHeight=90 appHash=E0FBAFBF6FCED8B9786DDFEB1A0D4FA2501BADAD
- I[10-04|13:54:27.368] ABCI Replay Blocks module=consensus appHeight=90 storeHeight=90 stateHeight=90
- I[10-04|13:54:27.368] Completed ABCI Handshake - Tendermint and App are synced module=consensus appHeight=90 appHash=E0FBAFBF6FCED8B9786DDFEB1A0D4FA2501BADAD
-
- After that, we start a few more things like the event switch, reactors, and
- perform UPNP discover in order to detect the IP address.
-
- ::
-
- I[10-04|13:54:27.374] Starting EventSwitch module=types impl=EventSwitch
- I[10-04|13:54:27.375] This node is a validator module=consensus
- I[10-04|13:54:27.379] Starting Node module=main impl=Node
- I[10-04|13:54:27.381] Local listener module=p2p ip=:: port=46656
- I[10-04|13:54:27.382] Getting UPNP external address module=p2p
- I[10-04|13:54:30.386] Could not perform UPNP discover module=p2p err="write udp4 0.0.0.0:38238->239.255.255.250:1900: i/o timeout"
- I[10-04|13:54:30.386] Starting DefaultListener module=p2p impl=Listener(@10.0.2.15:46656)
- I[10-04|13:54:30.387] Starting P2P Switch module=p2p impl="P2P Switch"
- I[10-04|13:54:30.387] Starting MempoolReactor module=mempool impl=MempoolReactor
- I[10-04|13:54:30.387] Starting BlockchainReactor module=blockchain impl=BlockchainReactor
- I[10-04|13:54:30.387] Starting ConsensusReactor module=consensus impl=ConsensusReactor
- I[10-04|13:54:30.387] ConsensusReactor module=consensus fastSync=false
- I[10-04|13:54:30.387] Starting ConsensusState module=consensus impl=ConsensusState
- I[10-04|13:54:30.387] Starting WAL module=consensus wal=/home/vagrant/.tendermint/data/cs.wal/wal impl=WAL
- I[10-04|13:54:30.388] Starting TimeoutTicker module=consensus impl=TimeoutTicker
-
- Notice the second row where Tendermint Core reports that "This node is a
- validator". It also could be just an observer (regular node).
-
- Next we replay all the messages from the WAL.
-
- ::
-
- I[10-04|13:54:30.390] Catchup by replaying consensus messages module=consensus height=91
- I[10-04|13:54:30.390] Replay: New Step module=consensus height=91 round=0 step=RoundStepNewHeight
- I[10-04|13:54:30.390] Replay: Done module=consensus
-
- "Started node" message signals that everything is ready for work.
-
- ::
-
- I[10-04|13:54:30.391] Starting RPC HTTP server on tcp socket 0.0.0.0:46657 module=rpc-server
- I[10-04|13:54:30.392] Started node module=main nodeInfo="NodeInfo{id: DF22D7C92C91082324A1312F092AA1DA197FA598DBBFB6526E, moniker: anonymous, network: test-chain-3MNw2N [remote , listen 10.0.2.15:46656], version: 0.11.0-10f361fc ([wire_version=0.6.2 p2p_version=0.5.0 consensus_version=v1/0.2.2 rpc_version=0.7.0/3 tx_index=on rpc_addr=tcp://0.0.0.0:46657])}"
-
- Next follows a standard block creation cycle, where we enter a new round,
- propose a block, receive more than 2/3 of prevotes, then precommits and finally
- have a chance to commit a block. For details, please refer to `Consensus
- Overview
- <introduction.html#consensus-overview>`__
- or `Byzantine Consensus Algorithm
- <specification.html>`__.
-
- ::
-
- I[10-04|13:54:30.393] enterNewRound(91/0). Current: 91/0/RoundStepNewHeight module=consensus
- I[10-04|13:54:30.393] enterPropose(91/0). Current: 91/0/RoundStepNewRound module=consensus
- I[10-04|13:54:30.393] enterPropose: Our turn to propose module=consensus proposer=125B0E3C5512F5C2B0E1109E31885C4511570C42 privValidator="PrivValidator{125B0E3C5512F5C2B0E1109E31885C4511570C42 LH:90, LR:0, LS:3}"
- I[10-04|13:54:30.394] Signed proposal module=consensus height=91 round=0 proposal="Proposal{91/0 1:21B79872514F (-1,:0:000000000000) {/10EDEDD7C84E.../}}"
- I[10-04|13:54:30.397] Received complete proposal block module=consensus height=91 hash=F671D562C7B9242900A286E1882EE64E5556FE9E
- I[10-04|13:54:30.397] enterPrevote(91/0). Current: 91/0/RoundStepPropose module=consensus
- I[10-04|13:54:30.397] enterPrevote: ProposalBlock is valid module=consensus height=91 round=0
- I[10-04|13:54:30.398] Signed and pushed vote module=consensus height=91 round=0 vote="Vote{0:125B0E3C5512 91/00/1(Prevote) F671D562C7B9 {/89047FFC21D8.../}}" err=null
- I[10-04|13:54:30.401] Added to prevote module=consensus vote="Vote{0:125B0E3C5512 91/00/1(Prevote) F671D562C7B9 {/89047FFC21D8.../}}" prevotes="VoteSet{H:91 R:0 T:1 +2/3:F671D562C7B9242900A286E1882EE64E5556FE9E:1:21B79872514F BA{1:X} map[]}"
- I[10-04|13:54:30.401] enterPrecommit(91/0). Current: 91/0/RoundStepPrevote module=consensus
- I[10-04|13:54:30.401] enterPrecommit: +2/3 prevoted proposal block. Locking module=consensus hash=F671D562C7B9242900A286E1882EE64E5556FE9E
- I[10-04|13:54:30.402] Signed and pushed vote module=consensus height=91 round=0 vote="Vote{0:125B0E3C5512 91/00/2(Precommit) F671D562C7B9 {/80533478E41A.../}}" err=null
- I[10-04|13:54:30.404] Added to precommit module=consensus vote="Vote{0:125B0E3C5512 91/00/2(Precommit) F671D562C7B9 {/80533478E41A.../}}" precommits="VoteSet{H:91 R:0 T:2 +2/3:F671D562C7B9242900A286E1882EE64E5556FE9E:1:21B79872514F BA{1:X} map[]}"
- I[10-04|13:54:30.404] enterCommit(91/0). Current: 91/0/RoundStepPrecommit module=consensus
- I[10-04|13:54:30.405] Finalizing commit of block with 0 txs module=consensus height=91 hash=F671D562C7B9242900A286E1882EE64E5556FE9E root=E0FBAFBF6FCED8B9786DDFEB1A0D4FA2501BADAD
- I[10-04|13:54:30.405] Block{
- Header{
- ChainID: test-chain-3MNw2N
- Height: 91
- Time: 2017-10-04 13:54:30.393 +0000 UTC
- NumTxs: 0
- LastBlockID: F15AB8BEF9A6AAB07E457A6E16BC410546AA4DC6:1:D505DA273544
- LastCommit: 56FEF2EFDB8B37E9C6E6D635749DF3169D5F005D
- Data:
- Validators: CE25FBFF2E10C0D51AA1A07C064A96931BC8B297
- App: E0FBAFBF6FCED8B9786DDFEB1A0D4FA2501BADAD
- }#F671D562C7B9242900A286E1882EE64E5556FE9E
- Data{
-
- }#
- Commit{
- BlockID: F15AB8BEF9A6AAB07E457A6E16BC410546AA4DC6:1:D505DA273544
- Precommits: Vote{0:125B0E3C5512 90/00/2(Precommit) F15AB8BEF9A6 {/FE98E2B956F0.../}}
- }#56FEF2EFDB8B37E9C6E6D635749DF3169D5F005D
- }#F671D562C7B9242900A286E1882EE64E5556FE9E module=consensus
- I[10-04|13:54:30.408] Executed block module=state height=91 validTxs=0 invalidTxs=0
- I[10-04|13:54:30.410] Committed state module=state height=91 txs=0 hash=E0FBAFBF6FCED8B9786DDFEB1A0D4FA2501BADAD
- I[10-04|13:54:30.410] Recheck txs module=mempool numtxs=0 height=91
-
- List of modules
- ---------------
-
- Here is the list of modules you may encounter in Tendermint's log and a little
- overview what they do.
-
- - ``abci-client`` As mentioned in `Application Development Guide
- <app-development.html#abci-design>`__,
- Tendermint acts as an ABCI client with respect to the application and
- maintains 3 connections: mempool, consensus and query. The code used by
- Tendermint Core can be found `here
- <https://github.com/tendermint/abci/tree/master/client>`__.
-
- - ``blockchain``
- Provides storage, pool (a group of peers), and reactor for both storing and
- exchanging blocks between peers.
-
- - ``consensus``
- The heart of Tendermint core, which is the implementation of the consensus
- algorithm. Includes two "submodules": ``wal`` (write-ahead logging) for
- ensuring data integrity and ``replay`` to replay blocks and messages on
- recovery from a crash.
-
- - ``events``
- Simple event notification system. The list of events can be found
- `here
- <https://github.com/tendermint/tendermint/blob/master/types/events.go>`__.
- You can subscribe to them by calling ``subscribe`` RPC method.
- Refer to `RPC docs
- <specification/rpc.html>`__
- for additional information.
-
- - ``mempool``
- Mempool module handles all incoming transactions, whenever they are
- coming from peers or the application.
-
- - ``p2p``
- Provides an abstraction around peer-to-peer communication. For more details,
- please check out the `README
- <https://github.com/tendermint/tendermint/blob/56c60fba2381e4ac41d2ae38a1eb6569acfbc095/p2p/README.md>`__.
-
- - ``rpc``
- `Tendermint's RPC <specification/rpc.html>`__.
-
- - ``rpc-server``
- RPC server. For implementation details, please read the `README <https://github.com/tendermint/tendermint/blob/master/rpc/lib/README.md>`__.
-
- - ``state``
- Represents the latest state and execution submodule, which executes
- blocks against the application.
-
- - ``types``
- A collection of the publicly exposed types and methods to work with them.
|
