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docs: Removes accounts-on-ramdisk section (#33655)

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Brooks 2023-10-11 10:39:09 -04:00 committed by GitHub
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docs/src/running-validator/validator-start.md
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@ -431,40 +431,6 @@ solana-validator ..."); otherwise, when logrotate sends its signal to the
validator, the enclosing script will die and take the validator process with validator, the enclosing script will die and take the validator process with
it. it.
### Using a ramdisk with spill-over into swap for the accounts database to reduce SSD wear
If your machine has plenty of RAM, a tmpfs ramdisk
([tmpfs](https://man7.org/linux/man-pages/man5/tmpfs.5.html)) may be used to hold
the accounts database
When using tmpfs it's essential to also configure swap on your machine as well to
avoid running out of tmpfs space periodically.
A 300GB tmpfs partition is recommended, with an accompanying 250GB swap
partition.
Example configuration:
1. `sudo mkdir /mnt/solana-accounts`
2. Add a 300GB tmpfs partition by adding a new line containing `tmpfs /mnt/solana-accounts tmpfs rw,size=300G,user=sol 0 0` to `/etc/fstab`
(assuming your validator is running under the user "sol"). **CAREFUL: If you
incorrectly edit /etc/fstab your machine may no longer boot**
3. Create at least 250GB of swap space
- Choose a device to use in place of `SWAPDEV` for the remainder of these instructions.
Ideally select a free disk partition of 250GB or greater on a fast disk. If one is not
available, create a swap file with `sudo dd if=/dev/zero of=/swapfile bs=1MiB count=250KiB`,
set its permissions with `sudo chmod 0600 /swapfile` and use `/swapfile` as `SWAPDEV` for
the remainder of these instructions
- Format the device for usage as swap with `sudo mkswap SWAPDEV`
4. Add the swap file to `/etc/fstab` with a new line containing `SWAPDEV swap swap defaults 0 0`
5. Enable swap with `sudo swapon -a` and mount the tmpfs with `sudo mount /mnt/solana-accounts/`
6. Confirm swap is active with `free -g` and the tmpfs is mounted with `mount`
Now add the `--accounts /mnt/solana-accounts` argument to your `solana-validator`
command-line arguments and restart the validator.
### Account indexing ### Account indexing
As the number of populated accounts on the cluster grows, account-data RPC As the number of populated accounts on the cluster grows, account-data RPC