anvil-watch-drbd \- This program displays the status of DRBD connections in a concise format.
.SHSYNOPSIS
.Banvil-watch-drbd
\fI\,<command> \/\fR[\fI\,options\/\fR]
.SHDESCRIPTION
This program looks at the various 'proc/drbd' files related to DRBD 9 connections and displays them in a concise manner. It optionally can provide a continuously updating view of the DRBD status, useful for monitoring resyncs.
.TP
.SHOPTIONS
.TP
\-?, \-h, \fB\-\-help\fR
Show this man page.
.TP
\fB\-\-log-secure\fR
When logging, record sensitive data, like passwords.
.TP
\-v, \-vv, \-vvv
Set the log level to 1, 2 or 3 respectively. Be aware that level 3 generates a significant amount of log data.
.SS"Commands:"
.TP
\fB\-\-watch\fR <seconds>
When used alone, it tells the program to stay running, updating the view of the DRBD resources every two (2) seconds. Optionally, an integer can be passed that sets how frequently the display is updated.
.IP
.SHAUTHOR
Written by Madison Kelly, Alteeve staff and the Anvil! project contributors.
@ -113,10 +113,17 @@ The definition for the server: [#!variable!server!#] was changed in the database
<keyname="scan_server_alert_0019">
There was no DRBD fence rule for the: [#!variable!server!#] in the pacemaker configuration. Adding it now.
</key>
<keyname="scan_server_alert_0020">I was asked to write an empty definition for the server: [#!variable!server!#], this must be a program error. Exiting.</key>
<keyname="error_0417">There was a problem with finding a common storage network between: [#!variable!node1_name!#] and: [#!variable!node2_name!#] using the common interface: [#!variable!interface!#]. Found node 1 to have the IP: [#!variable!node1_ip!#] and node 2: [#!variable!node2_ip!#]. Is there a problem with '/etc/hosts'?</key>
<keyname="error_0417">There was a problem with finding a common storage network between: [#!variable!node1_name!#] and: [#!variable!node2_name!#]. Found node 1 to have the IP: [#!variable!node1_ip!#] and node 2: [#!variable!node2_ip!#]. Is there a problem with '/etc/hosts'?</key>
<keyname="error_0418">Failed to find a network to use for storage replication. Is there a problem with '/etc/hosts'?</key>
foreach my $drbd_resource (sort {$a cmp $b} keys %{$anvil->data->{server}{$short_host_name}{$server_name}{drbd}{resource}})
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { drbd_resource => $drbd_resource }});
# Get the DRBD volume data
load_drbd_data($anvil, $drbd_resource);
}
foreach my $host_type ("node", "dr")
{
@ -351,15 +380,293 @@ sub manage_disk
}
}
}
=cut
# What are we doing?
if ($anvil->data->{switches}{grow})
{
# Are they asking for an available amount of space?
my $error_note = q|
[ Note ] - The size can be in percent, ie: '50%' or '100%', a number in bytes, or a human-readable size.
- Human readable sizes must NOT have a space between the number and letter suffix. Also, base2
- vs base10 notation! Ie: '1GiB' = 1,073,741,824 bytes', '1GB' == '1,000,000,000 bytes'. A single
- letter used to denote size will be interpreted as base2. ie: '1G == 1GiB'.
|;
my $add_size = $anvil->data->{switches}{grow};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { add_size => $add_size }});
if ($add_size =~ /^(\d+)%$/)
{
# This is valid
my $percent = ".".$1;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { percent => $percent }});
$add_size = int($max_free_space * $percent);
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { add_size => $add_size }});
}
elsif ($add_size !~ /\d/)
{
# No digits, probably didn't set a value at all.
print "\n[ Error ] - Please specify the size you would like to grow this disk by. The maximum size is: [".$anvil->Convert->bytes_to_human_readable({'bytes' => $max_free_space})."].\n";
print $error_note."\n";
$anvil->nice_exit({exit_code => 1});
}
elsif ($add_size !~ /^\d+$/)
{
# Size is not in bytes, try to convert it.
my $bytes = $anvil->Convert->human_readable_to_bytes({
debug => 2,
size => $add_size,
});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'bytes' => $bytes }});
if ($bytes =~ /^\d+$/)
{
$add_size = $bytes;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { add_size => $add_size }});
}
else
{
# Not a valid size.
print "\n[ Error ] - The requested size: [".$add_size."] could not be interpreted.\n";
print $error_note."\n";
$anvil->nice_exit({exit_code => 1});
}
}
# Make sure they're asking for a reasonable size
if ($add_size < 4194304)
{
# Must be a typo, this is less than the size of a single extent.
print "\n[ Error ] - The requested size: [".$anvil->Convert->bytes_to_human_readable({'bytes' => $add_size})."] is too small, it's less than an single extent.\n";
print $error_note."\n";
$anvil->nice_exit({exit_code => 1});
}
elsif ($add_size > $max_free_space)
{
# Not enough space.
print "\n[ Error ] - The requested size: [".$anvil->Convert->bytes_to_human_readable({'bytes' => $add_size})."] is too large. The available size is: [".$anvil->Convert->bytes_to_human_readable({'bytes' => $max_free_space})."]\n";
print $error_note."\n";
$anvil->nice_exit({exit_code => 1});
}
### TODO: Make this work without the peer node being online.
# The server is allowed to be running, but both nodes and any DR hosts this is replicating to
# needs to be online.
my $all_online = check_drbd_peer_access($anvil, $from_source, $drbd_volume);
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { all_online => $all_online }});
# Process the DRBD config to get the backing LVs.
if (not $all_online)
{
print "\n[ Error ] - Growing the storage requires all peers to be online.\n";
foreach my $short_host_name (sort {$a cmp $b} keys %{$anvil->data->{peer}})
{
my $say_access = $anvil->data->{peer}{$short_host_name}{access_ip} ? "up." : "down!";
print " - Peer: [".$short_host_name."] is ".$say_access."\n";
}
$anvil->nice_exit({exit_code => 1});
}
# Still here? We're good to go.
my $lv_command_size = 0;
my $hr_size = $anvil->Convert->bytes_to_human_readable({'bytes' => $add_size});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { hr_size => $hr_size }});
if ($add_size eq "100%")
{
# This is valid
$add_size = "-l +100\%FREE";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { add_size => $add_size }});
}
else
{
$hr_size =~ s/\s+//g;
$add_size = "-L +".$hr_size;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { add_size => $add_size }});
}
print "- Preparing to grow the storage by: [".$hr_size."]...\n";
Digimer
2 years ago
committed by
GitHub