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marsadm: new commands {pause,resume}-cksum

This commit is contained in:
Thomas Schoebel-Theuer 2016-12-28 23:51:36 +01:00
parent 94c5c58906
commit 45e45f0812
1 changed files with 55 additions and 0 deletions
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userspace/marsadm
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@ -1891,6 +1891,7 @@ sub create_res {
set_link("1", "$todo/connect");
set_link("1", "$todo/sync");
set_link("1", "$todo/allow-replay");
set_link("0", "$todo/pause-cksum");
unlink("$resdir/syncstatus-$host");
if ($create) {
@ -1947,6 +1948,7 @@ sub leave_res_phase0 {
sub leave_res_phase1 {
my ($cmd, $res) = @_;
_switch($cmd, $res, "$mars/resource-$res/todo-$host/pause-cksum", 0);
_create_delete("$mars/resource-$res/replay-$host");
_create_delete("$mars/resource-$res/data-$host");
_create_delete("$mars/resource-$res/syncstatus-$host");
@ -2220,6 +2222,22 @@ sub pause_replay_local_res {
_switch($cmd, $res, $path, !$pause);
}
sub pause_cksum_global_res {
my ($cmd, $res) = @_;
my $pause = ($cmd =~ m/pause/);
my @paths = glob("$mars/resource-$res/todo-*/");
for my $path (@paths) {
_switch($cmd, $res, "$path/pause-cksum", $pause);
}
}
sub pause_cksum_local_res {
my ($cmd, $res) = @_;
my $pause = ($cmd =~ m/pause/);
my $path = "$mars/resource-$res/todo-$host/pause-cksum";
_switch($cmd, $res, $path, $pause);
}
sub up_res_phase0 {
my ($cmd, $res) = @_;
my $down = ($cmd eq "down");
@ -2234,6 +2252,7 @@ sub up_res_phase1 {
my ($cmd, $res) = @_;
my $down = ($cmd eq "down");
if ($down) {
pause_cksum_local_res("resume-cksum-local", $res);
pause_replay_local_res("pause-replay-local", $res);
pause_sync_local_res("pause-sync-local", $res);
fetch_local_res("pause-fetch", $res);
@ -2430,6 +2449,7 @@ sub invalidate_res_phase0 {
sub invalidate_res_phase1 {
my ($cmd, $res) = @_;
_switch($cmd, $res, "$mars/resource-$res/todo-$host/pause-cksum", 0);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/attach", 0);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/sync", 0);
_switch($cmd, $res, "$mars/resource-$res/todo-$host/fetch", 0);
@ -4568,6 +4588,41 @@ my %cmd_table =
"only thereafter.",
\&create_cksum,
],
"resume-cksum-local"
=> [
"Resume any IO stalls caused by CKSUM errors.",
\&pause_cksum_local_res,
],
"resume-cksum-global"
=> [
"Like resume-cksum-local, but affects all resource members",
"in the cluster (remotely).",
\&pause_cksum_global_res,
],
"resume-cksum"
=> [
"See resume-cksum-local.",
\&pause_cksum_local_res,
],
"pause-cksum-local"
=> [
"Stall IO when CKSUM errors are encountered.",
"This will lead to hangs from the application viewpoint,",
"but known bad data will not be read.",
"This trades better safety for availability.",
\&pause_cksum_local_res,
],
"pause-cksum-global"
=> [
"Like pause-cksum-local, but affects all resource members",
"in the cluster (remotely).",
\&pause_cksum_global_res,
],
"pause-cksum"
=> [
"See pause-cksum-local.",
\&pause_cksum_local_res,
],
"set-connect-pref-list"
=> [
"verbose 2",