|
|
@@ -430,40 +430,6 @@ agave-validator ..."); otherwise, when logrotate sends its signal to the
|
|
|
validator, the enclosing script will die and take the validator process with
|
|
|
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 `agave-validator`
|
|
|
-command-line arguments and restart the validator.
|
|
|
-
|
|
|
### Account indexing
|
|
|
|
|
|
As the number of populated accounts on the cluster grows, account-data RPC
|