785220f1ca
- Add lvm2-activation-generator systemd generator to automatically systemd units to activate LVM2 volumes even if lvmetad is not This replaces lvm activation part of the former fedora-storage-init script that was included in the initscripts package before. - Enable lvmetad - the LVM metadata daemon by default. - Don't use lvmetad in lvm2-monitor.service ExecStop to avoid a systemd issue. - Remove dependency on fedora-storage-init.service in lvm2 systemd units. - Depend on lvm2-lvmetad.socket in lvm2-monitor.service systemd unit. - Init lvmetad lazily to avoid early socket access on config overrides. - Hardcode use_lvmetad=0 if cluster locking used and issue a warning msg. - Fix dm_task_set_cookie to properly process udev flags if udev_sync disabled.
112 lines
3.5 KiB
Diff
112 lines
3.5 KiB
Diff
diff --git a/WHATS_NEW b/WHATS_NEW
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index 5887ec7..d0e0cd4 100644
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--- a/WHATS_NEW
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+++ b/WHATS_NEW
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@@ -1,5 +1,6 @@
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Version 2.02.99 -
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===================================
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+ Initialize lvmetad lazily to avoid early socket access on config overrides.
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Hardcode use_lvmetad=0 if cluster locking used and issue a warning msg.
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Version 2.02.98 - 15th October 2012
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diff --git a/lib/cache/lvmetad.c b/lib/cache/lvmetad.c
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index 6a374ac..72e07fd 100644
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--- a/lib/cache/lvmetad.c
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+++ b/lib/cache/lvmetad.c
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@@ -33,7 +33,8 @@ static struct cmd_context *_lvmetad_cmd = NULL;
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void lvmetad_disconnect(void)
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{
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- daemon_close(_lvmetad);
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+ if (_lvmetad_connected)
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+ daemon_close(_lvmetad);
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_lvmetad_connected = 0;
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_lvmetad_cmd = NULL;
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}
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@@ -41,19 +42,25 @@ void lvmetad_disconnect(void)
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void lvmetad_init(struct cmd_context *cmd)
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{
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if (!_lvmetad_use && !access(LVMETAD_PIDFILE, F_OK))
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- log_warn("WARNING: lvmetad is running but disabled. Restart lvmetad before enabling it!");
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+ log_warn("WARNING: lvmetad is running but disabled."
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+ " Restart lvmetad before enabling it!");
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+ _lvmetad_cmd = cmd;
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+}
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+
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+static void _lvmetad_connect()
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+{
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if (_lvmetad_use && _lvmetad_socket && !_lvmetad_connected) {
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assert(_lvmetad_socket);
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_lvmetad = lvmetad_open(_lvmetad_socket);
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- if (_lvmetad.socket_fd >= 0 && !_lvmetad.error) {
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+ if (_lvmetad.socket_fd >= 0 && !_lvmetad.error)
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_lvmetad_connected = 1;
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- _lvmetad_cmd = cmd;
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- }
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}
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}
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void lvmetad_warning(void)
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{
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+ if (!_lvmetad_connected)
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+ _lvmetad_connect();
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if (_lvmetad_use && (_lvmetad.socket_fd < 0 || _lvmetad.error))
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log_warn("WARNING: Failed to connect to lvmetad: %s. Falling back to internal scanning.",
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strerror(_lvmetad.error));
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@@ -61,7 +68,11 @@ void lvmetad_warning(void)
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int lvmetad_active(void)
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{
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- return _lvmetad_use && _lvmetad_connected;
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+ if (!_lvmetad_use)
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+ return 0;
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+ if (!_lvmetad_connected)
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+ _lvmetad_connect();
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+ return _lvmetad_connected;
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}
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void lvmetad_set_active(int active)
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@@ -873,6 +884,11 @@ int lvmetad_pvscan_all_devs(struct cmd_context *cmd, activation_handler handler)
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char *future_token;
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int was_silent;
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+ if (!lvmetad_active()) {
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+ log_error("Cannot proceed since lvmetad is not active.");
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+ return 0;
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+ }
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+
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if (!(iter = dev_iter_create(cmd->lvmetad_filter, 1))) {
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log_error("dev_iter creation failed");
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return 0;
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diff --git a/test/shell/lvmetad-override.sh b/test/shell/lvmetad-override.sh
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new file mode 100644
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index 0000000..3fb281a
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--- /dev/null
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+++ b/test/shell/lvmetad-override.sh
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@@ -0,0 +1,25 @@
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+#!/bin/sh
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+# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
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+#
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+# This copyrighted material is made available to anyone wishing to use,
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+# modify, copy, or redistribute it subject to the terms and conditions
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+# of the GNU General Public License v.2.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software Foundation,
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+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+
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+. lib/test
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+
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+test -e LOCAL_LVMETAD || skip
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+aux prepare_pvs 2
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+
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+vgcreate $vg1 $dev1 $dev2
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+lvchange -ay $vg1 2>&1 | not grep "Failed to connect"
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+kill $(cat LOCAL_LVMETAD)
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+lvchange -ay $vg1 2>&1 | grep "Failed to connect"
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+lvchange -ay $vg1 --sysinit 2>&1 | not grep "Failed to connect"
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+lvchange -ay $vg1 --config 'global { use_lvmetad = 0 }' 2>&1 | not grep "Failed to connect"
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+aux lvmconf "global/use_lvmetad = 0"
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+lvchange -ay $vg1 --config 'global { use_lvmetad = 1 }' 2>&1 | grep "Failed to connect"
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+
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