Reboot D3 on fail board

damnedd3.php

#!/usr/bin/php
<?php

$hosts = array("antminer1","antminer2");
$minercreds = array( "user" => "root", "pass" => "becauseIAmHigh");
$failhashboard = "oxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxx";
/* I'm too stoned to try and detect how many hashboards are there*/
$possiblehashboards = 4;
foreach($hosts as $host)
{
    $r = request("stats",$host);
    for( $i = 1; $i <= $possiblehashboards; $i++ )
    {
        //var_dump(array_keys($r));
        if( isset( $r["STATS0"]["chain_acs".$i]) && trim($r["STATS0"]["chain_acs".$i]) === $failhashboard )
        {
            echo "errors on chain $i on $host, sending reboot".PHP_EOL;
            $out = rebootMinerWget($host, $minercreds['user'], $minercreds['pass']);
	          echo $out.PHP_EOL;
            break;
        }
    }   
}

function rebootMinerWget( $host, $user, $pass )
{
    $cmd = "/usr/bin/wget -qO- --http-user=".$user." --http-password=".$pass." http://".$host."/cgi-bin/reboot.cgi";
    return shell_exec($cmd);
}

function rebootMinerCurl( $host, $user, $pass )
{
    $url = "http://".$host."/cgi-bin/reboot.cgi";
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_USERPWD, "$user:$pass" );
    $reboot = curl_exec($ch);
    return $reboot;
}

function rebootMiner($host, $user, $pass)
{
    $conn = ssh2_connect($host, 22);
    if(!$conn )
    {
        echo "Could not connect to $host".PHP_EOL;
        return false;
    }

    if(!ssh2_auth_password( $conn, $user, $pass ) )
    {
        echo "Failed to authenticate on ssh $host".PHP_EOL;
        return false;
    }

    $out = ssh2_exec($conn , "reboot");
    stream_set_blocking($out, true);
    $result =  stream_get_contents($out);
    fclose($out);
    return $result;
}

function getsock($addr, $port)
{
    $socket = null;
    $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
    if ($socket === false || $socket === null) {
        $error = socket_strerror(socket_last_error());
        $msg   = "socket create(TCP) failed";
        echo "ERR: $msg '$error'\n";
        return null;
    }
    $res = socket_connect($socket, $addr, $port);
    if ($res === false) {
        $error = socket_strerror(socket_last_error());
        $msg   = "socket connect($addr,$port) failed";
        echo "ERR: $msg '$error'\n";
        socket_close($socket);
        return null;
    }
    return $socket;
}
#
# Slow ...

function readsockline($socket)
{
    $line = '';
    while (true) {
        $byte = socket_read($socket, 1);
        if ($byte === false || $byte === '') break;
        if ($byte === "\0") break;
        $line .= $byte;
    }
    return $line;
}
#

function request($cmd, $host)
{
    $socket = getsock($host, 4028);
    if ($socket != null) {
        socket_write($socket, $cmd, strlen($cmd));
        $line = readsockline($socket);
        socket_close($socket);
        if (strlen($line) == 0) {
            echo "WARN: '$cmd' returned nothing\n";
            return $line;
        }
        //print "$cmd returned '$line'\n";
        if (substr($line, 0, 1) == '{') {
            return json_decode($line, true);
        }
        $data = array();
        $objs = explode('|', $line);
        foreach ($objs as $obj) {
            if (strlen($obj) > 0) {
                $items = explode(',', $obj);
                $item  = $items[0];
                $id    = explode('=', $items[0], 2);
                if (count($id) == 1 or ! ctype_digit($id[1])) {
                    $name = $id[0];
                } else {
                    $name = $id[0].$id[1];
                }
                if (strlen($name) == 0) {
                    $name = 'null';
                }
                if (isset($data[$name])) {
                    $num = 1;
                    while (isset($data[$name.$num])) {
                        $num++;
                    }
                    $name .= $num;
                }
                $counter = 0;
                foreach ($items as $item) {
                    $id = explode('=', $item, 2);
                    if (count($id) == 2) {
                        $data[$name][$id[0]] = $id[1];
                    } else {
                        $data[$name][$counter] = $id[0];
                    }
                    $counter++;
                }
            }
        }
        return $data;
    }
    return null;
}

i wish you had included a module to scan all subnets for D3 miners, i was working on some kind of script but your is better so i will improve it

Hi. Why does it say $failhashboard = "oxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxx";****

Theres other ways hashboards can be displayed and not working.. it can be oxxxooo xxxxxxx oooo and so on. and also
$possiblehashboards = 4; the D3 has 3 hashboards and L3+ 4 ... does it matter?

I would like to use this script but i have 0 experience.. i have a linux server i can add this to crontab but what values to change i dont understand..

THx

STATS gives you a "miner_count" which holds the amount how much time you need to check "chain_acs" and the failed count is simply
substr_count($current_chain_acs_string, 'x') which is ideally ZERO, but i have to mention, lots of time, the restart of cgminer.sh is enough, to get the working chains back(this works only over SSH with /etc/init.d/cgminer.sh restart (shame on me, you already use SSH)). But sometimes the chains fail, then you have a hardware failure....

already done this in php

also you can have an issue with the chips per chain. Which is 60 for D3, and maybe 72 for L3+, so if you start to get less chips than the specs, that is also a misteriuos issue