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# Node recovery killing 1 node out of 4 at the time and waiting for recover

use strict;
use NDB::Run;

my $env = NDB::Run->getenv;
my $log = $env->getlog;
$log->setpart(time => 1, line => 0);
$log->setprio("info");

my $database = $ENV{NDB_DATABASE};
$log->put("start test database=$database");
$env->init or $log->push("init failed")->fatal;

my $db = $env->getdb($database) or $log->push->fatal;
my $mgm = $db->getnode(1) or $log->push->fatal;
my $db1 = $db->getnode(2) or $log->push->fatal;
my $db2 = $db->getnode(3) or $log->push->fatal;
my $db3 = $db->getnode(4) or $log->push->fatal;
my $db4 = $db->getnode(5) or $log->push->fatal;
my $api = $db->getnode(6) or $log->push->fatal;

$db->kill;
$db->start({init_rm=>1}) or $log->push->fatal;
sleep 10;

# should be option (or default) in $db->start
sub wait_until_started {
    my $local_cnt = 100;
    while (--$local_cnt > 0) {
	sleep 2;
	my $ret = $mgm->write("all status", { wait => 2 });
	$ret or $log->fatal;
	my $output = $ret->{output};
	if ($output =~ /((.|\n)*\bstarted\b(.|\n)*){4}/i) {
# if all 4 nodes started
	    $log->put("*** db is started ***")->info;
	    return;
	}
	if ($output =~ /((.|\n)*\bno.contact\b(.|\n)*){4}/i) {
#if all 4 nodes no contact
	    print "NDBT_ProgramExit: 1 - test error\n";
	    $log->put("*** db is dead ***")->fatal;
	}
    }
    print "NDBT_ProgramExit: 1 - test error\n";
    $log->put("*** node recovery failed ***")->fatal;
}

my $cnt = 0;
wait_until_started();
$api->start({run=>"flexBench -t 32 -l 800"});
while (1) {
    wait_until_started();
    sleep 10;
    my $id = (++$cnt % 4);
    my $dbx = 0;
    if ($id eq 0) {
	$dbx = $db1;
    }    
    elsif ($id eq 1) {
	$dbx = $db2;
    }
    elsif ($id eq 2) {	
	$dbx = $db3;
    } 
    else {
	$dbx = $db4;
    }
    $dbx->kill or $log->fatal;
    sleep 10;
    $dbx->start;	# start the node
}

$db->kill;

# vim: set sw=4: