fluencelabs/tendermint-demo
1
0
Fork 0
mirror of https://github.com/fluencelabs/tendermint-demo synced 2025-03-15 15:50:51 +00:00
Code Issues Projects Releases Wiki Activity

Verbose operations

Browse Source
This commit is contained in:
Alexander Demidko 2018-06-26 16:04:10 +03:00 committed by GitHub
parent a4a7e29d12
commit c1f3e60c8a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 26 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
README.md
View File

@ -205,30 +205,43 @@ b c
### Verbose mode and proofs ### Verbose mode and proofs
Verbose mode allows to obtain a little bit more information on how the Tendermint blockchain structure looks like and how the client performs verifications. Verbose mode allows to obtain a little bit more information on how the Tendermint blockchain structure looks like and how the client performs verifications.
Let's start with the `put` operation: **Let's start with the `put` operation:**
```bash ```bash
> python cli/query.py localhost:46157 put -v a/b=20 > python cli/query.py localhost:46157 put -v root/x=5
height: 3 height: 7
# wait for few seconds # wait for few seconds
> python cli/query.py localhost:46157 put -v a/b=21 > python cli/query.py localhost:46157 put -v "root/x_fact=factorial(root/x)"
height: 5 height: 9
``` ```
In this example, `height` corresponds to the height of block in which the `put` transaction eventually got included. Now, we can checkout blockchain contents using a `parse_chain.py` script: In this example, `height` corresponds to the height of the block in which the `put` transaction eventually got included. Now, we can checkout blockchain contents using a `parse_chain.py` script:
```bash ```bash
> python cli/parse_chain.py localhost:46157 > python cli/parse_chain.py localhost:46157
height block time txs acc.txs app_hash tx1 height block time txs acc.txs app_hash tx1
... ...
... 7: 2018-06-26 14:35:02.333653 1 3 0xA981CC root/x=5
3: 2018-06-26 13:14:17.902941 1 1 0x420124 a/b=20 8: 2018-06-26 14:35:03.339486 0 3 0x214F37
4: 2018-06-26 13:14:18.909297 0 1 0x0CE213 9: 2018-06-26 14:35:36.698340 1 4 0x214F37 root/x_fact=factorial(root/x)
5: 2018-06-26 13:16:30.076257 1 2 0x0CE213 a/b=21 10: 2018-06-26 14:35:37.706811 0 4 0x153A5D
6: 2018-06-26 13:16:31.083559 0 2 0xA981CC
``` ```
This script shows latest blocks in the blockchain with a short summary on their transactions. Here it's possible to see that provided transaction `a/b=21` was indeed included in the block with height returned with operation response. This means that Tendermint majority (more than 2/3 of the cluster nodes) agreed on including this transaction in the mentioned block which was certified by their signatures. This script shows latest blocks in the blockchain with a short summary on their transactions. For example, it's possible to see that provided transaction `root/x=5` was indeed included in the block with height `7`. This means that Tendermint majority (more than 2/3 of the cluster nodes) agreed on including this transaction in this block, and that was certified by their signatures.
It's also possible to see that `app_hash` is modified only in the block following the block with transactions. You could note that block 4 (empty) and block 5 (containing `a/b=21`) application hashes are the same. However, block 6 has it's application hash changed which corresponds to the change transaction `a/b=21` introduced into the application state. It's also possible to see that `app_hash` is modified only in the block following the block with transactions. You could note that block 8 (empty) and block 9 (containing `root/x_fact=factorial(root/x)`) application hashes are the same. However, block 10 has the application hash changed which corresponds to the changes that transactions from the previous block introduced into the application state.
**Now let's pull results back using `get` operation:**
```bash
> python cli/query.py localhost:46157 get -v root/x
height: 9
app_hash: 0x153A5D
5
> python cli/query.py localhost:46157 get -v root/x_fact
height: 9
app_hash: 0x153A5D
120
```
Here we can see that both (correct!) results correspond to the latest `app_hash` – `0x153A5D`.
## Implementation details ## Implementation details