# Code getting hanged or Killed constantly
**URL:** https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055
**Category:** Ray Core
**Created:** [February 14, 2022, 12:55pm UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055 "2022-02-14T12:55:18Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Aditi\_Bhalawat](https://discuss.ray.io/u/Aditi_Bhalawat)
#### Post date: [February 14, 2022, 12:55pm UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055/1 "2022-02-14T12:55:18Z")
```auto
def mongo(contractAddress, block):
Block_Address = pymongo.MongoClient(connection_Url).get_database('Holders').Block_Address
if Block_Address.find_one({'contractAddress': contractAddress}) == None:
Block_Address.insert_one({
'contractAddress': contractAddress,
'Block': block
})
@ray.remote
def contract(_block):
web3 = Web3(Web3.WebsocketProvider(infuraURL))
for i in range(len(web3.eth.get_block(_block).transactions)):
address = web3.eth.getTransactionReceipt(web3.eth.get_block(_block).transactions[i].hex()).contractAddress
if address != None:
mongo(address, _block)
if __name__ ==" __main__":
ray.init(address='auto')
print('''This cluster consists of
{} nodes in total
{} CPU resources in total
'''.format(len(ray.nodes()), ray.cluster_resources()['CPU']))
web3 = Web3(Web3.WebsocketProvider(infura_url))
latestBlock = web3.eth.get_block('latest').number
del web3
del infura_url
ray.get([contract.remote(block) for block in reversed(range(latestBlock))])
```
I am not able to figure out why code is getting killed and sometime system gets hanged.
Could anyone provide some help
---
### Author:  [@yic](https://discuss.ray.io/u/yic)
#### Post date: [February 14, 2022, 8:00pm UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055/2 "2022-02-14T20:00:09Z")
Hi @Aditi_Bhalawat there is no way for us to know what’s happening here by just reading the code you provided.
Could you 1) format your code with indent; 2) check the logs either in the console and `/tmp/ray/session_latest/logs` and provide more information about your case?
---
### Author:  [@Aditi\_Bhalawat](https://discuss.ray.io/u/Aditi_Bhalawat)
#### Post date: [February 15, 2022, 5:21am UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055/3 "2022-02-15T05:21:50Z")
I added indent in the code.
And what is happening with code is that it runs for few minute and after the it stops and gives output as
`killed`
or the machine gets hanged.
I am not able to understand why is it happening like this.
---
### Author:  [@yic](https://discuss.ray.io/u/yic)
#### Post date: [February 15, 2022, 7:40pm UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055/4 "2022-02-15T19:40:26Z")
Thanks for helping improve the code. Could you also check `/tmp/ray/session_latest/logs` to see whether something is broken?
Btw, I think this might not be related to ray. Could you also check whether the program OOM? Usually, when OOM killer got triggered, it’ll show `killed` or machine hangs. `dmesg` might give you some insights.
---
### Author:  [@Aditi\_Bhalawat](https://discuss.ray.io/u/Aditi_Bhalawat)
#### Post date: [February 15, 2022, 7:42pm UTC](https://discuss.ray.io/t/code-getting-hanged-or-killed-constantly/5055/5 "2022-02-15T19:42:50Z")
> [@yic](#):
>
> dmesg
Could you tell me where to check logs ? And also how to check whether the program is OOM