RE: Best Practice Running Steemd v0.16.0

[felixxx]

Thanks for posting this.
There are no posts about this at all.

It doesn't work for me, though.
Steemd still tells me 30G memory free (That's on the main partition)

Comments

[abit]

The messages about "30G memory free" doesn't matter. Check whether the files are created in /dev/shm by commands:

ls -al /dev/shm/
du -hs /dev/shm/

[felixxx]

Yeah, I think they were being created.
It also went a lot faster.

After 85% it crashes now.

Bus error (core dumped)

[smooth]

Bus error (core dumped)

That usually means you ran out of available space on whatever file system is holding the shared data file. If you are following @abit's directions that would be /dev/shm. You need to make sure you have enough RAM and/or swap space and have used the remount command to enlarge it.

BTW, on Ubuntu Linux (and probably others) /dev/shm is not a mounted file system, it is a symlink to /run/shm. I don't think remount on /dev/shm will work, but I'm not 100% sure. I do the remount on /run/shm instead. EDIT: remount on /dev/shm appears to be okay; mount follows the link.

[abit]

I guess it's OK to remount /dev/shm, from my test:

$ df -h /dev/shm
Filesystem      Size  Used Avail Use% Mounted on
none             10G  144K   10G   1% /run/shm

$ sudo mount -o remount,size=11G /dev/shm
$ df -h /dev/shm
Filesystem      Size  Used Avail Use% Mounted on
none             11G  144K   11G   1% /run/shm

[smooth]

I guess mount follows the link. I will edit.

[felixxx]

Thank you.

I tried a few different sizes for RAM and swap.

I will try to remount /run/shm/ instead.

Could this also be related to this ?:

so Linux users may need to tweak kernel settings in order to run the latest version of steemd.

source: https://steemit.com/steem/@steemitblog/steem-0-16-0-official-release

[smooth]

It is related in that the settings given there are trying to address some of the same issues. The approach outlined by abit here works better.

[felixxx]

I have:

• enable-plugin = witness (without the rest )
• changed the shared-file-size
• tried with 14 G, 10G and 8G RAM
• changed the size of the swap (tried various settings)

Still crashes with Bus error.

I appreciate the help.
Didn't work so far.

I also tried the kernel settings @steemitblog suggested ...
Didn't change the error.

[abit]

After you changed the enable-plugin settings in config.ini, you need to run with --replay like follows:

./steemd --shared-file-dir /dev/shm/ --replay

Also you can check if the disk is full:

df -h /dev/shm/

//Update: after further investigation, we found that @felixxx's issue is caused by a typo when running the mount command, so the size of /dev/shm remained unchanged (too small), so unable to allocate new space. Here is the tip: no space after the comma, and, just copy & paste.