mynode/rootfs/standard/usr/bin/mynode_invalid_block_check.sh

#!/bin/bash

sleep 5m

last_invalid_block=""
while [ 1 ]; do
    if [ -f /mnt/hdd/mynode/bitcoin/debug.log ]; then
        log=$(tail -n 10 /mnt/hdd/mynode/bitcoin/debug.log | grep "ERROR: AcceptBlockHeader")
        if [ $? == 0 ]; then
            block=$(tail -n 10 /mnt/hdd/mynode/bitcoin/debug.log | grep "ERROR: AcceptBlockHeader" | tail -n 1 | egrep -o "block [0-9a-f]+" | awk '{print $2}')
            if [ "$block" = "$last_invalid_block" ]; then
                echo "ALREADY FIXED INVALID BLOCK: $block"
            else
                echo "INVALID BLOCK FOUND: $block"
                echo "Fixing..."
                bitcoin-cli -rpccookiefile=/mnt/hdd/mynode/bitcoin/.cookie invalidateblock $block
                bitcoin-cli -rpccookiefile=/mnt/hdd/mynode/bitcoin/.cookie reconsiderblock $block
                last_invalid_block=$block
                echo "Done fixing block $block"
                sleep 5m
            fi
        fi
    fi
    sleep 3m
done