Lots of index.html files being created

[waylandc]

What's creating all the index.html* files within the /opt directory of the miner nodes? They're all 0 byte sized but I just want to know so I can turn it off.

Thanks for sharing this btw!

[javahippie]

Hi waylandc,

I did not notice this, yet. Good catch, I will see what I can do.

[kyriediculous]

I checked this too.

They are all empty.

It only occurs on the miners and node.
It doesn't happen on the swarm , explorer or monitor containers.

nico@nico-Aspire-A515-51G:~$ docker run -t -i mysnap /bin/bash
root@933d19c17441:/opt# ls
COPYING         index.html.112  index.html.13   index.html.147  index.html.164  index.html.181  index.html.199  index.html.215  index.html.24  index.html.41  index.html.59  index.html.76  index.html.93
genesis.json    index.html.113  index.html.130  index.html.148  index.html.165  index.html.182  index.html.2    index.html.216  index.html.25  index.html.42  index.html.6   index.html.77  index.html.94
geth            index.html.114  index.html.131  index.html.149  index.html.166  index.html.183  index.html.20   index.html.217  index.html.26  index.html.43  index.html.60  index.html.78  index.html.95
index.html      index.html.115  index.html.132  index.html.15   index.html.167  index.html.184  index.html.200  index.html.218  index.html.27  index.html.44  index.html.61  index.html.79  index.html.96
index.html.1    index.html.116  index.html.133  index.html.150  index.html.168  index.html.185  index.html.201  index.html.219  index.html.28  index.html.45  index.html.62  index.html.8   index.html.97
index.html.10   index.html.117  index.html.134  index.html.151  index.html.169  index.html.186  index.html.202  index.html.22   index.html.29  index.html.46  index.html.63  index.html.80  index.html.98
index.html.100  index.html.118  index.html.135  index.html.152  index.html.17   index.html.187  index.html.203  index.html.220  index.html.3   index.html.47  index.html.64  index.html.81  index.html.99
index.html.101  index.html.119  index.html.136  index.html.153  index.html.170  index.html.188  index.html.204  index.html.221  index.html.30  index.html.48  index.html.65  index.html.82
index.html.102  index.html.12   index.html.137  index.html.154  index.html.171  index.html.189  index.html.205  index.html.222  index.html.31  index.html.49  index.html.66  index.html.83
index.html.103  index.html.120  index.html.138  index.html.155  index.html.172  index.html.19   index.html.206  index.html.223  index.html.32  index.html.5   index.html.67  index.html.84
index.html.104  index.html.121  index.html.139  index.html.156  index.html.173  index.html.190  index.html.207  index.html.224  index.html.33  index.html.50  index.html.68  index.html.85
index.html.105  index.html.122  index.html.14   index.html.157  index.html.174  index.html.191  index.html.208  index.html.225  index.html.34  index.html.51  index.html.69  index.html.86
index.html.106  index.html.123  index.html.140  index.html.158  index.html.175  index.html.192  index.html.209  index.html.226  index.html.35  index.html.52  index.html.7   index.html.87
index.html.107  index.html.124  index.html.141  index.html.159  index.html.176  index.html.193  index.html.21   index.html.227  index.html.36  index.html.53  index.html.70  index.html.88
index.html.108  index.html.125  index.html.142  index.html.16   index.html.177  index.html.194  index.html.210  index.html.228  index.html.37  index.html.54  index.html.71  index.html.89
index.html.109  index.html.126  index.html.143  index.html.160  index.html.178  index.html.195  index.html.211  index.html.229  index.html.38  index.html.55  index.html.72  index.html.9
index.html.11   index.html.127  index.html.144  index.html.161  index.html.179  index.html.196  index.html.212  index.html.23   index.html.39  index.html.56  index.html.73  index.html.90
index.html.110  index.html.128  index.html.145  index.html.162  index.html.18   index.html.197  index.html.213  index.html.230  index.html.4   index.html.57  index.html.74  index.html.91
index.html.111  index.html.129  index.html.146  index.html.163  index.html.180  index.html.198  index.html.214  index.html.231  index.html.40  index.html.58  index.html.75  index.html.92
root@933d19c17441:/opt# cat index.html

[javahippie]

Just reporting back, that this is not forgotten. I just have no idea what's causing this. The file count increases, the longer the docker container is running, but there is only one process in the container: geth. I am trying to find some creative ways of checking the root cause of this, I even started checking geths source code, but I can't find any hints.

[waylandc]

Appreciate that you're looking into. It's not a big deal as there's no functional defect but it's just weird to see it happening but have no idea what's causing it.

[kyriediculous]

@javahippie Possibly these are created by some http proxy? I don't think this is geth related but rather docker/nginx. Then again the others dont have it when not running geth.

I'll try some different flags and remove verbosity.

[Adam-Kielkowski]

Hello,

I have found the fix.

In docker-compose.yml
there is healthcheck option

     healthcheck:
       test: wget http://localhost:8545
       interval: 2s
       timeout: 5s
       retries: 30

it wgets every 2 seconds localhost:8545 to check if it is alive and this wget is downloading localhost:8545 content which is empty index.html file.

To stop creating files just remove healthcheck section or change wget to ping (but remember to install iputils-ping first)

[javahippie]

Thank you for finding this, @Adam-Kielkowski! I will add the change to the next release.

[kyriediculous]

Ah yes indeed, wget is for files of http/https good spot.

Should use a custom script apparently.

https://blog.sixeyed.com/docker-healthchecks-why-not-to-use-curl-or-iwr/