MultiChain Developer Q&A - Recent questions tagged invalid

Invalid amount while sending, how to initialize amount ???

Wed, 18 Jul 2018 05:49:12 +0000

>multichain-cli mychain send "1bC2V8G3MPFogVpHcHQDUGuqreA48ZhEh7dM1c" 1
{"method":"send","params":["1bC2V8G3MPFogVpHcHQDUGuqreA48ZhEh7dM1c",1],"id":1,"chain_name":"mychain"}

error code: -8
error message:
Invalid amount

Getting invalid blocks

Thu, 30 Nov 2017 08:04:40 +0000

Hi Team,

I 'm trying to perform a sustained load test on multichain with 2 peers. Recently I 've started seeing a lot of invalid blocks. Can you please let me know the reason for getting such blocks. Right now I 'm not sending any request to my multichain still new blocks are getting mined which I think because of autocombining feature which I included in the runtime. But why blocks are being marked invalid, that's a concern and when it happens so I lose all transactions in that block?

2017-11-30 07:58:27 MultiChainMiner: Block Found - 00e0b15d819fb821d2157f5bbf931e3550991ae50238b7495d78136e28a04d65, prev: 005d3ddc79d86b6900f1958a96682ac24297ac5b26d909df2ea38bc7bc3b0568, height: 5123, txs: 2
2017-11-30 07:58:27 ERROR: ContextualCheckBlock : block height mismatch in coinbase
2017-11-30 07:58:27 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-11-30 07:58:27 ERROR: MultiChainMiner : ProcessNewBlock, block not accepted

It is a very critical issue as per me.

Thanks,

Ashish

About tx error: setting INVALID flag.

Tue, 26 Sep 2017 01:49:42 +0000

Hi,

We are doing high speed load testing.
We are currently testing multichain 1.01 (protocol 10009) on three ubuntu Linux servers.

Each of the three servers executes the 'send' command at the maximum speed to the other two servers.
The following '... was not accepted to mempool, setting INVALID flag' error will occured.

If appropriate time delay was given between sends, the above problem does not occur.

'... setting INVALID flag'
This error seems to be caused by sending transactions at a high speed between the servers.
Sending a transaction at high speed only from one server does not cause this error.

Once this error occurs, it will continue to appear.
What causes this error, and how do you remove the transaction?

Or what settings or methods are needed to prevent this error?

$ multichain-cli mc getinfo
{"method":"getinfo","params":[],"id":1,"chain_name":"mc"}

{
    "version" : "1.0.1",
    "nodeversion" : 10001901,
    "protocolversion" : 10009,
    "chainname" : "mc",
    "description" : "MultiChain mc",
    "protocol" : "multichain",
    "port" : 18823,
    "setupblocks" : 60,
    "nodeaddress" : "mc@192.168.1.19:18823",
    "burnaddress" : "1XXXXXXWvuXXXXXXMRXXXXXXhAXXXXXXYw8FG8",
    "incomingpaused" : false,
    "miningpaused" : false,
    "walletversion" : 60000,
    "balance" : 4354999.81247900,
    "walletdbversion" : 2,
    "reindex" : false,
    "blocks" : 1052,
    "timeoffset" : 0,
    "connections" : 2,
    "proxy" : "",
    "difficulty" : 0.00000006,
    "testnet" : false,
    "keypoololdest" : 1506388291,
    "keypoolsize" : 2,
    "paytxfee" : 0.00000000,
    "relayfee" : 0.00000000,
    "errors" : ""
}

$ uname -a
Linux lee-VirtualBox 4.10.0-35-generic #39~16.04.1-Ubuntu SMP Wed Sep 13 09:02:42 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

$ tail -f debug.log
...
2017-09-26 01:31:42 MultiChainMiner: Block Found - 0000244ee3c2044c6eb165e1b2fafe9b3d7ec888a6303fb0623403637a25dcf7, prev: 000033bfe67e433c54fc2f8bde68ddeeccd98f4da1be12c45b8ee3d3cea82cb6, height: 925, txs: 1
2017-09-26 01:31:42 UpdateTip:            new best=0000244ee3c2044c6eb165e1b2fafe9b3d7ec888a6303fb0623403637a25dcf7 height=925 log2_work=17.854868 tx=236837 date=2017-09-26 01:31:42 progress=1.000000 cache=0
2017-09-26 01:31:42 Tx ce97c141e6706dfaf9827b08fc576b4b02f21e868df2989f29aa4d267f103f68 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx d995de804747eb0220257acba4b84ef95417aa77df48d588ff4651587df9b174 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx e42b84605f15825d0b16e364ba6648174bb948cce82a9b1484606b863203efa7 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx cb4a0d59da89a58eafa17d2ad3d2ebe8ccba4d1cf211a801c8745bcc30950374 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx aae69b2dd30342df80a74779b67c3a1071fb5648b9f1b7cb71a51d27cb2a81fb was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx 79e2974d3c97eb3d0aa21ae4658d7bd1c6763f4f8a0806e2d7fd573026937924 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx 1014bf1146f05f94eef946e83f39e01de85faa7a883b1de5f7ae21b6bcfac3bf was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx eaf616dd305e8497a9beb939b4dd3f1bbf4055cc8ad59e48aac97800c73b18f3 was not accepted to mempool, setting INVALID flag
2017-09-26 01:31:42 Tx 6176e7dc76511700289a46027383710937d407f2e6a247a72d9d7fa51fd75051 was not accepted to mempool, setting INVALID flag

grant #address connect error code: -5 error message: Invalid address

Mon, 28 Aug 2017 17:59:19 +0000

I am setting up two CentOS VMWare servers to use for my private multichain blockchain. However, after successfullly initializing the blockchain on Server2, I see the wallet address provided on the command prompt. For example:
# multichaind chain1@192.168.29.135:7419

MultiChain 1.0 Daemon (protocol 10008)

Retrieving blockchain parameters from the seed node 192.168.29.135:7419 ...
Blockchain successfully initialized.

Please ask blockchain admin or user having activate permission to let you connect and/or transact:
multichain-cli chain1 grant 18yV9rLuwHkN5UpZRnzpceoWxpVikBoMoADyvK connect
multichain-cli chain1 grant 18yV9rLuwHkN5UpZRnzpceoWxpVikBoMoADyvK connect,send,receive

But when I take the provided address, and try to grant it a connect parameter on Server1, I get this error:
[root@server1 chain1]# multichain-cli chain1 grant 18yV9rLuwHkN5UpZRnzpceoWxpVikBoMoADyvK connect
{"method":"grant","params":["18yV9rLuwHkN5UpZRnzpceoWxpVikBoMoADyvK","connect"],"id":1,"chain_name":"chain1"}

error code: -5
error message:
Invalid address: 18yV9rLuwHkN5UpZRnzpceoWxpVikBoMoADyv

I have tried getting and using new addresses from Server2, but they still provide the same error. I already opened up the port/protocol (e.g., 7419) in my firewall, so I don't know if this is some firewall/security issue -- or something within Multichain I am unaware of. Do I need to reset my chain?

Any help would be great. Thanks.

Several Tx repeating with "was not accepted to mempool, setting INVALID flag"

Tue, 08 Aug 2017 17:10:01 +0000

We have a bunch of this Tx repeating on the logs. They are slowly growing and seems to be a problem sometime in the future. What is the problem and how can be analized/solved?

Regards

Invalid parameter set for blockchain wont allow me to run multichaind -daemon

Wed, 26 Jul 2017 12:28:06 +0000

I tried to restart my multichaind client by running multichaind <chainname> -daemon after stopping it and received the following error:

ERROR: Parameter set for blockchain <chainname> is invalid. You may generate new net
work using these parameters by running:

multichain-util clone <chainname> <new-blockchain-name>

What causes the parameters to be invalid if i have not changed any parameters of the blockchain? How can i prevent this from happening in a live production environment?