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ZRFE-907: Add warning on -a option #103

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ZRFE-907: Add warning on -a option #103

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a3b0d6f
Add warning on -j option
zmcommand Jan 31, 2022
5755249
Fix: I had the wrong switch. It wasn't -j it was -a that we need to w…
zmcommand Feb 1, 2022
c57b743
Fix typo
ronstra-synacor Jan 4, 2023
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55 changes: 55 additions & 0 deletions .idea/workspace.xml
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79 changes: 49 additions & 30 deletions src/libexec/zmdiaglog
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Original file line number Diff line number Diff line change
Expand Up @@ -29,9 +29,9 @@ use Zimbra::Mon::Zmstat;
use Digest::MD5;

use vars qw(
$VERSION $PID_FILE $DEFAULT_DEST $DLOGDIR $JMAP $JAVA $JINFO $DEFAULT_TIMEOUT
$HAVE_GCORE $HAVE_PSTACK $HAVE_LSOF $HAVE_DMESG $LOG_FILE $ZMSTAT_CONF
$ZMDUMPENV $ZMLOCALCONFIG $ZMPROV $ZMHOSTNAME $SU $HAVE_NETSTAT $HAVE_MYSQL $ZMMYTOP $ZMINNOTOP $HAVE_NETWORK
$VERSION $PID_FILE $DEFAULT_DEST $DLOGDIR $JMAP $JAVA $JINFO $DEFAULT_TIMEOUT
$HAVE_GCORE $HAVE_PSTACK $HAVE_LSOF $HAVE_DMESG $LOG_FILE $ZMSTAT_CONF
$ZMDUMPENV $ZMLOCALCONFIG $ZMPROV $ZMHOSTNAME $SU $HAVE_NETSTAT $HAVE_MYSQL $ZMMYTOP $ZMINNOTOP $HAVE_NETWORK
);

my $isMac = isMac();
Expand All @@ -41,7 +41,7 @@ chomp( $ZMHOSTNAME = qx(/opt/zimbra/bin/zmhostname) );
my $zimbra_tmp_directory = "/opt/zimbra/data/tmp";
if ( -f "/opt/zimbra/bin/zmlocalconfig" ) {
$zimbra_tmp_directory =
qx(/opt/zimbra/bin/zmlocalconfig -x -s -m nokey zimbra_tmp_directory);
qx(/opt/zimbra/bin/zmlocalconfig -x -s -m nokey zimbra_tmp_directory);
chomp($zimbra_tmp_directory);
}

Expand All @@ -51,8 +51,8 @@ if ( !-d $zimbra_tmp_directory ) {

$DEFAULT_DEST = "$zimbra_tmp_directory";
$DLOGDIR = "zmdiaglog-$ZMHOSTNAME."
. strftime( "%Y%m%d-%H%M%S", localtime() ) . "."
. $$;
. strftime( "%Y%m%d-%H%M%S", localtime() ) . "."
. $$;
$DEFAULT_TIMEOUT = 120;
$PID_FILE = '/opt/zimbra/log/zmmailboxd_java.pid';
$JMAP = '/opt/zimbra/common/bin/jmap';
Expand Down Expand Up @@ -89,7 +89,7 @@ sub logmsg($) {
sub get_java_version() {
my $version = "UNKNOWN";
open( JAVA, "$JAVA -version 2>&1 |" )
|| die "Cannot determine java version: $!";
|| die "Cannot determine java version: $!";
my $version_line = <JAVA>;
if ( $version_line =~ /"13\.0/ ) {
$version = "13.0";
Expand Down Expand Up @@ -117,6 +117,7 @@ sub get_java_version() {
}

sub save_heap_info($$$$) {

my ( $version, $destination, $pid, $timeout ) = @_;
my $histo_cmd;
my $dump_cmd;
Expand All @@ -128,7 +129,7 @@ sub save_heap_info($$$$) {
logmsg "Retrieving JVM $version heap histogram\n";
exec_with_timeout( " '$histo_cmd' > heap.histo 2>&1", $timeout );
logmsg "Saving JVM $version heapdump\n";
my $success = system("bash -c $dump_cmd ");
my $success = system("bash -c $dump_cmd ");
my $dumped = -f "$dump_file";
$dumped && $success;
}
Expand Down Expand Up @@ -184,7 +185,7 @@ sub get_pid() {
if ( !$pid ) {
eval {
open( PS, "ps -ef | grep [j]etty.xml | awk '{ print \$2 }' |" )
|| die $!;
|| die $!;
$pid = <PS>;
chomp($pid);
chomp($pid);
Expand Down Expand Up @@ -294,17 +295,17 @@ sub run() {
my %options = ('t' => $DEFAULT_TIMEOUT);
my $opt_result =
GetOptions (\%options,
't=i',
'd:s',
'h' => sub{ usage( \*STDERR ); exit 0; },
'j', 'a', 'c', 'z', 'Z',
'' => sub{ print "Error: '-' must be followed by a valid option.\n";
usage( \*STDERR );
exit 1; },
'<>' => sub{ warn("Error: unexpected argument(s): @_\n");
usage( \*STDERR );
exit 1; }
);
't=i',
'd:s',
'h' => sub{ usage( \*STDERR ); exit 0; },
'j', 'a', 'c', 'z', 'Z',
'' => sub{ print "Error: '-' must be followed by a valid option.\n";
usage( \*STDERR );
exit 1; },
'<>' => sub{ warn("Error: unexpected argument(s): @_\n");
usage( \*STDERR );
exit 1; }
);

die "Error: Timeout must be greater than 0.\n" unless $options{t} > 0;
$options{d} = $DEFAULT_DEST if ( $options{d} eq "" );
Expand All @@ -325,6 +326,24 @@ sub run() {
exit 1;
}

if ( $options{a} ) {
print "!!WARNING: In most cases, the -a option is not needed.\n";
print "This option can slow down the server significantly, make the server less stable, and create a very large file.\n";
print "Only use -a if Zimbra support has explicitly asked for a heap dump.\n";
print "Do you still wish to perform a heap dump? (Y/N)\n";
chomp(my $input = <STDIN>);
if($input =~ m/^[Y]$/i) {
print "Continuing with -j option."
} elsif ($input =~ m/^[N]$/i) {
print "Exiting. Please remove the -a from your command.\n";
exit 1;
} else {
print "Invalid option.\n";
exit 1;
}
}


my $destination = "$options{d}/$DLOGDIR";
$destination = File::Spec->rel2abs($destination);
my $timeout = $options{t};
Expand All @@ -339,14 +358,14 @@ sub run() {
{
local $> = $uid;
print STDERR "$destination is not writable by user zimbra\n" and exit 1
if !-w $destination;
if !-w $destination;
}

chdir($destination);

my $mailboxd_pid = get_pid();
logmsg "No '-a' argument, skipping heap/coredump collection.\n"
if ( !$options{a} );
if ( !$options{a} );
logmsg "Saving diagnostic logging output to: $destination\n";

my $JAVA_VERSION = get_java_version();
Expand Down Expand Up @@ -514,11 +533,11 @@ sub run() {
system("/opt/zimbra/libexec/zmjavawatch > zmjavawatch.log 2>&1");
}
my $dumped =
save_heap_info( $JAVA_VERSION, $destination, $mailboxd_pid, $timeout )
if ( $options{a} );
save_heap_info( $JAVA_VERSION, $destination, $mailboxd_pid, $timeout )
if ( $options{a} );

save_jvm_core( $JAVA_VERSION, $mailboxd_pid )
if ( $options{c} || ( !$dumped && $options{a} ) );
if ( $options{c} || ( !$dumped && $options{a} ) );

logmsg "Heap dump processing complete. It is now safe to restart mailboxd.\n";
}
Expand Down Expand Up @@ -707,7 +726,7 @@ sub run() {
my ( $zuid, $zgid ) = ( getpwnam($zuser) )[ 2, 3 ];
chown $zuid, $zgid, "$destination/stats/$yesterday_stats_dir";
cp $_, "$destination/stats/$yesterday_stats_dir"
for glob("/opt/zimbra/zmstat/$yesterday_stats_dir/*");
for glob("/opt/zimbra/zmstat/$yesterday_stats_dir/*");
}

my $systemlogfile = "/var/log/messages";
Expand Down Expand Up @@ -741,7 +760,7 @@ sub run() {
$timeout );

logmsg
"\n *** Diagnostics collection done. Data stored in $destination/.\n\n";
"\n *** Diagnostics collection done. Data stored in $destination/.\n\n";

chomp( my $dirname = qx(pwd) );
chomp( $dirname = qx(basename $dirname) );
Expand All @@ -751,12 +770,12 @@ sub run() {
$LOG_FILE = "$destination/$LOG_FILE";
chdir('..');
my $rc = 0xffff &
system("nice -n 19 /bin/tar jcf $destination.$ext $dirname >> $LOG_FILE 2>&1");
system("nice -n 19 /bin/tar jcf $destination.$ext $dirname >> $LOG_FILE 2>&1");
if ( ( $rc == 0 ) && ( -e "$destination.$ext" ) ) {
logmsg "bzip2 archive created\n";
logmsg "Computing MD5 digest\n";
open(my $fh, "<", "$destination.$ext")
or die "cannot open file for reading";
or die "cannot open file for reading";
my $ctx = Digest::MD5->new;
$ctx->addfile($fh);
my $md5 = $ctx->hexdigest;
Expand All @@ -768,7 +787,7 @@ sub run() {
}
else {
logmsg
"An error occurred creating $destination.$ext. Leaving data collection directory intact.\n";
"An error occurred creating $destination.$ext. Leaving data collection directory intact.\n";
logmsg "$0 run complete\n";
}
}
Expand Down