mirror of
https://github.com/xcat2/xcat-core.git
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306 lines
8.3 KiB
Perl
Executable File
306 lines
8.3 KiB
Perl
Executable File
#!/usr/bin/perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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#(C)IBM Corp
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#-----------------------------------------------------------------------------
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=head1 restartxcatd
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restartxcatd - this routine is used to restart the xcatd process group.
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Linux: It will perform the xcatd fast restart. The 'xcatd fast restart'
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has two advantages compares to the 'service stop and then start'.
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1. The interval of xcatd out of service is very short.
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2. The in processing request which initiated by old xcatd will
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not be stopped by force. The old xcatd will hand over the sockets
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to new xcatd, but old xcat will still be waiting for the in processing
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request to finish before the exit.
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It does the same thing as 'service xcatd restart' on NON-systemd OS like
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rh6.x and sles11.x. But for the systemd enabled OS like rh7 and sles12,
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the 'service xcatd restart' just do the 'stop and start' instead of
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'xcatd fast restart'.
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SO, it's recommended to use 'restartxcatd' command to restart xcatd on
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systemd enable system like rh7 and sles12 instead of 'service xcatd restart' or
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'systemctl restart xcatd'.
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AIX: It runs 'stopsrc -s xcatd' to stop xcatd first if xcatd is active,
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then runs 'startsrc -s xcatd' to start xcatd.
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=cut
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#-----------------------------------------------------------------------------
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BEGIN
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{
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$::XCATROOT =
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$ENV{'XCATROOT'} ? $ENV{'XCATROOT'}
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: -d '/opt/xcat' ? '/opt/xcat'
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: '/usr';
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}
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use lib "$::XCATROOT/lib/perl";
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use Getopt::Long;
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use File::Basename;
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use xCAT::MsgUtils;
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use xCAT::Utils;
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my $cmd = basename($0);
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# for auditing
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my $current_userid = getpwuid($>);
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my $rsp = {};
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my $host = `hostname`;
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$host =~ s/\s*//g; # remove blanks
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# check the arguments
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&parse_args($cmd);
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$rsp->{syslogdata}->[0] = "restartxcatd invoked by $current_userid.\n";
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$rsp->{userid}->[0] = $current_userid;
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$rsp->{clientname}->[0] = $host;
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$rsp->{clienttype}->[0] = "cli";
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$rsp->{command}->[0] = $cmd;
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$rsp->{status}->[0] = "allowed";
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xCAT::MsgUtils->message("SA", $rsp); # syslog and auditlog
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# for Linux specific
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if (xCAT::Utils->isLinux())
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{
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print "Restarting xCATd ";
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if (-r "/etc/profile.d/xcat.sh") {
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$cmd = "source /etc/profile.d/xcat.sh;";
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}
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$cmd .= "xcatd -p /var/run/xcatd.pid";
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xCAT::Utils->runcmd("$cmd", -1);
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if ($::RUNCMD_RC == 0) {
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print "[ OK ]\n";
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system("logger -p local4.info -t xcat Restart xcatd: [ OK ].");
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exit 0;
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} else {
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print "[ FAILED ]\n";
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system("logger -p local4.info -t xcat Restart xcatd: [ FAILED ].");
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exit 1;
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}
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} elsif (!(xCAT::Utils->isAIX())) {
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xCAT::MsgUtils->message("E", "Error: This command should only be run on Linux or AIX.");
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exit 1;
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}
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# Following code is for AIX only
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$::RE_CHECK_NUM = 10; # the times to check the result of command, the checking interval is 1 second
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my $rc;
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my @output;
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my $inoperative = 0;
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my $check_num;
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# Check whether the xcatd subsystem has been created
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$cmd = "/usr/bin/lssrc -s xcatd | grep \"xcatd Subsystem is not on file\"";
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@output = `$cmd`;
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if (scalar(@output)) {
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# create the subsystem if it does not exist
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$cmd = "mkssys -p $::XCATROOT/sbin/xcatd -s xcatd -u 0 -S -n 15 -f 15 -a \"-f\"";
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$rc = system($cmd);
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if ($rc >> 8) {
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xCAT::MsgUtils->message("E", "Error: Cannot create the xcatd subsystem.\n");
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exit 1;
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}
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}
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# Check the current status of xcatd subsystem
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$cmd = "lssrc -s xcatd | grep 'xcatd' | grep 'inoperative'";
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@output = `$cmd`;
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if (scalar(@output)) {
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if ($::VERBOSE) {
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xCAT::MsgUtils->message("I", "xcatd subsystem in inoperative status.\n");
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}
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$inoperative = 1;
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}
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if (!$inoperative) { # active
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# Stop the xcatd subsystem
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$cmd = "/usr/bin/stopsrc -s xcatd";
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$rc = system($cmd);
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if ($rc >> 8) {
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xCAT::MsgUtils->message("E", "Error: Cannot run stopsrc command correctly.\n");
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exit 1;
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}
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# Wait for end of the xcatd subsystem
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$check_num = $::RE_CHECK_NUM;
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while ($check_num > 0) {
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$cmd = "lssrc -s xcatd | grep 'xcatd' | grep 'inoperative'";
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@output = `$cmd`;
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if (scalar(@output) == 0) {
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sleep 1;
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} else {
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last;
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}
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$check_num--;
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}
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if ($check_num <= 0) {
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xCAT::MsgUtils->message("E", "Error: Cannot stop the xcatd subsystem correctly.\n");
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exit 1;
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} else {
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if ($::VERBOSE) {
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xCAT::MsgUtils->message("I", "Stopped the xcatd subsystem.\n");
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}
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}
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}
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# Kill xcatd manually if needed
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$cmd = "ps -ef | grep xcatd: | grep -v grep";
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@output = `$cmd`;
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if (scalar(@output)) {
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$cmd = "ps -ef | grep xcatd | grep 'SSL listener'";
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@output = `$cmd`;
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foreach my $ps (@output) {
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$ps =~ s/^\s+//; # strip any leading spaces
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my ($uid, $pid, $ppid, $desc) = split /\s+/, $ps;
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my $cmd = "/usr/bin/kill -15 -$pid >/dev/null 2>&1";
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`$cmd`;
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}
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# Kill the xcatd by force if it still there
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$cmd = "ps -ef | grep xcatd: | grep -v grep";
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@output = `$cmd`;
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foreach my $ps (@output) {
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$ps =~ s/^\s+//; # strip any leading spaces
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my ($uid, $pid, $ppid, $desc) = split /\s+/, $ps;
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my $cmd = "/usr/bin/kill -9 $pid >/dev/null 2>&1";
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`$cmd`;
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}
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$check_num = $::RE_CHECK_NUM;
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while ($check_num > 0) {
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$cmd = "ps -ef | grep xcatd: | grep -v grep";
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@output = `$cmd`;
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if (scalar(@output)) {
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sleep 1;
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} else {
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last;
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}
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$check_num--;
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}
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if ($check_num <= 0) {
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xCAT::MsgUtils->message("E", "Error: Cannot kill the xcatd processes correctly.\n");
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exit 1;
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}
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}
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# Start the xcatd subsystem
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$cmd = "/usr/bin/startsrc -s xcatd";
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if ($ENV{XCATRELOAD} || $ENV{XCATROOT} || $ENV{PATH}) {
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$cmd .= " -e \"";
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if ($ENV{XCATRELOAD}) {
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$cmd .= " XCATRELOAD=$ENV{XCATRELOAD}";
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}
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if ($ENV{XCATROOT}) {
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$cmd .= " XCATROOT=$ENV{XCATROOT}";
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}
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if ($ENV{PATH}) {
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$cmd .= " PATH=$ENV{PATH}";
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}
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$cmd .= "\"";
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}
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$rc = system($cmd);
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if ($rc >> 8) {
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xCAT::MsgUtils->message("E", "Error: Cannot run startsrc command correctly.\n");
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exit 1;
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}
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# Sleep a while to make sure the startsrc has completed it's work
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sleep 3;
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# Check the status of xcatd subsystem
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$check_num = $::RE_CHECK_NUM;
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while ($check_num > 0) {
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$cmd = "lssrc -s xcatd | grep 'xcatd' | grep 'active'";
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my @output = `$cmd`;
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if (scalar(@output) == 0) {
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sleep 1;
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} else {
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last;
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}
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$check_num--;
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}
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if ($check_num <= 0) {
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xCAT::MsgUtils->message("E", "Error: Cannot start the xcatd subsystem correctly.\n");
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exit 1;
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}
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# now see if we can really talk to the database, up to a minute
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$wait = 60;
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while ($wait > 0) {
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sleep 10;
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$wait = $wait - 10;
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xCAT::Utils->runcmd("$::XCATROOT/sbin/tabdump site", -1);
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if ($::RUNCMD_RC == 0) {
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$wait = 0;
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}
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}
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if ($::VERBOSE) {
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xCAT::MsgUtils->message("I", "Started the xcatd subsystem.\n");
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}
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exit 0;
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#-----------------------------------------------------------------------------
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=head3 parse_args
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Parses for input
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=cut
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#-----------------------------------------------------------------------------
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sub parse_args
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{
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my $usagemsg = "restartxcatd [[-h|--help] | [-v|--version] | [-r|--reload]] [-V|--verbose]\n";
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Getopt::Long::Configure("posix_default");
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Getopt::Long::Configure("no_gnu_compat");
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Getopt::Long::Configure("bundling");
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if (
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!GetOptions(
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'h|help' => \$::HELP,
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'r|reload' => \$::RELOAD,
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'v|version' => \$::VERSION,
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'V|verbose' => \$::VERBOSE
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)
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)
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{
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xCAT::MsgUtils->message("E", $usagemsg);
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exit 1;
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}
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if ($::HELP)
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{
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xCAT::MsgUtils->message("I", $usagemsg);
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exit 0;
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}
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if ($::RELOAD)
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{
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$ENV{XCATRELOAD} = "yes";
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}
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if ($::VERSION)
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{
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my $version = xCAT::Utils->Version();
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$version .= "\n";
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xCAT::MsgUtils->message("I", $version);
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exit 0;
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}
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}
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