clang: error: linker command failed with exit code 1" and also for -lasan. Would anyone know how this can be resolved? Thanks in advance.
I am a BSc Computer Science graduate from University of The Gambia where am currently working as a software developer. It's a young university founded in 1999.
My interest is mainly around security and trust. Which direct me towards Blockchain technology use to address corruption and promote good governance.
My the computer science department at my university is relatively small and don't have any expert in the area of blockchain. Looking for a supervisor to help me pursuit my research interest.
Does anyone knows if it is possible to store more transactions in a block?
So far I understood that for each transaction generated, 1 block is created.|
Hyperledger Fabric claims to achieve a throughput of 3,500 transactions per second, which is clearly not achievable if in BigchainDB we create a block for each transaction.
I am having issue in transferTransaction functionality in bgchaindb,getting response - {"error": true,"message": "HTTP Error: Requested page not reachable","data": null }
and in bigchaindb-errors.logs, error is as -
HTTP API error: 400 - POST:/api/v1/transactions - Invalid transaction (InvalidSignature): Transaction signature is invalid. (bigchaindb_webapi - pid: 12335).
Note - makeTransferTransaction and signTransaction functions are giving output fine but getting error in this function - connection.postTransactionCommit(txTransferSigned).
Also,get and create transaction are woking fine too.
Can anyone help me on this?
Hey guys. I am researching BCDB possible application
came to this post
https://www.reddit.com/r/Bitcoin/comments/4j7wjf/bigchaindb_a_prime_example_of_blockchain_bullshit/
this post is very old (2016) maybe a lot of changed after that
can someone guide me how this was addressed in the end?
But BigchainDB's architecture is fundamentally flawed. All BigchainDB nodes, by design, connect to a single RethinkDB cluster. (RethinkDB is a distributed NoSQL database, kinda like MongoDB but better.) If something bad happens to that RethinkDB cluster, the whole blockchains goes down.
Hello; my team and I are currently looking to transition from locally stored flat files with our wallet and chain to utilizing bigchainDB; everything has been going fine thus far and I'm not sure if we will run into issues. However I was looking to see if there is anyone around here with experience utilizing the software specifically that we can bounce questions off real-time when the conversion takes place.
The "Amount" in our system is a little unique than most in it isn't currency, however all other aspects follow a typical blockchain deployment.
hi @ttmc i tried to execute the code (sent_creation_tx = bdb.transactions.send_commit(fulfilled_creation_tx) but a timeout error is appearing in the screeen TimeoutError Traceback (most recent call last)
<ipython-input-26-6495e0171e3f> in <module>
----> 1 sent_creation_tx = bdb.transactions.send_commit(fulfilled_creation_tx)
/opt/anaconda3/envs/blockchain/lib/python3.8/site-packages/bigchaindb_driver/driver.py in send_commit(self, transaction, headers)
368
369 """
--> 370 return self.transport.forward_request(
371 method='POST',
372 path=self.path,
/opt/anaconda3/envs/blockchain/lib/python3.8/site-packages/bigchaindb_driver/transport.py in forward_request(self, method, path, json, params, headers)
73 start = time()
74 try:
---> 75 response = connection.request(
76 method=method,
77 path=path,
/opt/anaconda3/envs/blockchain/lib/python3.8/site-packages/bigchaindb_driver/connection.py in request(self, method, path, json, params, headers, timeout, backoff_cap, **kwargs)
74
75 if timeout is not None and timeout < backoff_timedelta:
---> 76 raise TimeoutError
77
78 if backoff_timedelta > 0:
TimeoutError: T The bdb url i am using is bdb_root_url = ‘http://18.222.232.169’ ( where i have hosted the Bigchaindb server ) please help
ValueError: recipients list cannot be empty How to solve it??
Hello everyone.I am running single bigchaindb server node and also successfully making transactions but transactions are nor saving on bigchaindb and neither giving any errors.Unconfirmed transactions are zero.Is it because of single node?
.bigchaindb
"server": {
"bind": "localhost:9984",
"loglevel": "info",
"workers": null
},
"wsserver": {
"scheme": "ws",
"host": "localhost",
"port": 9985,
"advertised_scheme": "ws",
"advertised_host": "localhost",
"advertised_port": 9985
},
"tendermint": {
"host": "localhost",
"port": 26657,
"version": "v0.31.5"
},
"database": {
"backend": "localmongodb",
"connection_timeout": 5000,
"max_tries": 3,
"ssl": false,
"ca_cert": null,
"certfile": null,
"keyfile": null,
"keyfile_passphrase": null,
"crlfile": null,
"host": "localhost",
"port": 27017,
"name": "hydra",
"replicaset": null,
"login": null,
"password": null
},
.tendermint/config/genesis.json
{
"genesis_time": "2021-03-30T11:30:26.611712831Z",
"chain_id": "test-chain-Sh8UDQ",
"consensus_params": {
"block": {
"max_bytes": "22020096",
"max_gas": "-1",
"time_iota_ms": "1000"
},
"evidence": {
"max_age": "100000"
},
"validator": {
"pub_key_types": [
"ed25519"
]
}
},
"validators": [
{
"address": "AFD2B2DE44982DEAF1DA4CAEB8F2D4BDC23F8F04",
"pub_key": {
"type": "tendermint/PubKeyEd25519",
"value": "vLDbfrR2zHVv5QWl9ytmp7SSUaSgSSgeisfI1aHVLoU="
},
"power": "10",
"name": ""
}
],
"app_hash": ""
}
Hello all.
I have been soo passionate about Blockchain beyond its Cryptocurrency use. I have been trying to get admission into graduate schools by submitting research proposals in the area. But I now need help in formulating a great research theme on Blockchain possible with BigchainDB.
My rough ideas;
- CRAB Operations using ORM on a Blockchain Database
- Designing a Blockchain solution for E-Governance for small National Government like The Gambia
I really need ideas and contributing in finding my passion in Blockchain as it is where I want to focus my academic career.
Anyone willing to help and contact me can get in contact through alagiesellu@gmail.com
Regards.
any ideas xx.xx.xx.xx is the wan server adresse
E[2021-05-14|18:55:45.050] Dialing failed module=pex addr=7b836124a21b45643413060ad82e24e3981e39c@xx.xx.xx.xx:26656 err="auth failure: secret conn failed: read tcp xx.xx.xx.xx:33780->xx.xx.xx.xx:26656: read: connection reset by peer" attempts=4