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enhance HA scripts deactivate-mn and activate-mn (#4120)

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* enhance doc for scripts changes
* enhance activate-mn/deactivate-mn
This commit is contained in:
Yuan Bai
2017-10-24 10:21:32 +08:00
committed by Bin Xu
parent 6d345ab62d
commit d4a1e82d5d
3 changed files with 205 additions and 48 deletions
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34
docs/source/advanced/hamn/setup_ha_mgmt_node_with_shared_data.rst
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@@ -289,10 +289,25 @@ In a planned failover, you can do necessary cleanup work on the previous primary
Take down the Current Primary Management Node
---------------------------------------------
xCAT ships a sample script ``/opt/xcat/share/xcat/hamn/deactivate-mn`` to make the machine be a standby management node. Before using this script, you need to review the script carefully and make updates accordingly, here is an example of how to use this script: ::
xCAT ships a sample script ``/opt/xcat/share/xcat/hamn/deactivate-mn`` to make the machine be a standby management node. Before using this script, you need to review the script carefully and make updates accordingly, correct the following variable values in this script: ::
SHAREDVG=sharedvg # For AIX, shared volumn group name
DBDIR=/var/lib/pgsql # database directory
SHAREDFS="/install /etc/xcat /root/.xcat /tftpboot" # Shared file systems
USEDB2=no # if DB2 is being used
USETEAL=no # if TEAL is being used
USEDFM=no # if DFM is being used
USEUNMOUNT=yes # umount share data directory
POWER775=no # Power 775 cluster
CHANGEHOSTNAME=no # change the hostname from virtual ip hostname to the original hostname
xcatdb=postgresql # support postgrel,DB2,mysql
Here is an example of how to use this script: ::
/opt/xcat/share/xcat/hamn/deactivate-mn -i eth1:2 -v 9.114.47.97
**Notes**: This script will be over-written after xCAT is upgraded. If this script is customized, make sure backup it before upgrading xCAT.
On the current primary management node:
If the management node is still available and running the cluster, perform the following steps to shutdown.
@@ -339,11 +354,26 @@ If the management node is still available and running the cluster, perform the f
Bring up the New Primary Management Node
----------------------------------------
xCAT ships a sample script ``/opt/xcat/share/xcat/hamn/activate-mn`` to make the machine be a new primary management node. Before using this script, you need to review the script carefully and make updates accordingly, correct the following variable values in this script: ::
Execute script ``/opt/xcat/share/xcat/hamn/activate-mn`` to make the machine be a primary management node: ::
SHAREDVG=sharedvg # For AIX, shared volumn group name
DBDIR=/var/lib/pgsql # database directory
SHAREDFS="/install /etc/xcat /root/.xcat" # Shared file systems
USEDFM=no # if DFM is being used
USENTP=no # if NTP is being used
POWER775=no # Power 775 cluster
USETEAL=no # if TEAL is being used
USEMOUNT=yes # mounted filesystems in the file /etc/fstab
CHANGEHOSTNAME=yes # set the hostname to the virtual ip address hostname
RESTARTDNS=yes # if yes, will execute "makedns -n"
xcatdb=postgresql # support postgrel,DB2,mysql
Here is an example of how to use this script to make the machine be a primary management node: ::
/opt/xcat/share/xcat/hamn/activate-mn -i eth1:2 -v 9.114.47.97 -m 255.255.255.0
**Notes**: This script will be over-written after xCAT is upgraded. If this script is customized, make sure backup it before upgrading xCAT.
On the new primary management node:
#. Configure Virtual IP: ::

137
xCAT-server/share/xcat/hamn/activate-mn
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@@ -25,18 +25,19 @@
# -----------------------------------------------------------------------------
# 2011-12-08 JDW 1.0 Original
# 2013-06-06 xCAT 1.1 Updated version to ship with xCAT
# 2017-10-17 xCAT 2.13.8 Enhance
SHAREDVG=sharedvg # For AIX, shared volumn group name
SHAREDFS="/install /etc/xcat ~/.xcat" # Shared file systems
DB2DIR=/db2database # DB2 only, the db2 database directory
DBDIR=/var/lib/pgsql # database directory
SHAREDFS="/install /etc/xcat /root/.xcat" # Shared file systems
USEDFM=no # if DFM is being used
USENTP=no # if NTP is being used
POWER775=no # Power 775 cluster
USETEAL=no # if TEAL is being used
CHANGEHOSTNAME=no # set the hostname to the virtual ip address hostname
xcatdb=`XCATBYPASS=1 /opt/xcat/bin/lsxcatd -d | cut -f 2 -d "=" 2>/dev/null`
USEMOUNT=yes # mounted filesystems in the file /etc/fstab
CHANGEHOSTNAME=yes # set the hostname to the virtual ip address hostname
RESTARTDNS=yes # if yes, will execute "makedns -n"
exit_code=0
xcatdb=postgresql # support postgrel,DB2,mysql
usage()
{
@@ -49,7 +50,31 @@ EOF
runcmd()
{
echo "Running command: $@"
$@
a=0
while true
do
if [ $a -eq 5 ]; then
echo "$@ [Failed]"
exit_code=1
return 1
elif [ $a -gt 0 ]; then
sleep 3
echo "Retry $a ...... $@"
fi
$@
if [ $? -eq 0 ]; then
echo "$@ [Passed]"
return 0
else
a=$[$a+1]
fi
done
}
clear_env()
{
NIC=$1
ifconfig $NIC 0.0.0.0 0.0.0.0 2>/dev/null
}
################################################################################
@@ -133,15 +158,48 @@ then
runcmd "varyonvg $SHAREDVG"
fi
for fs in $SHAREDFS
do
runcmd "mount $fs"
done
#DB2 only
if [ $xcatdb = "DB2" ]
if [ $USEMOUNT = "yes" ]
then
runcmd "mount $DB2DIR"
for fs in $SHAREDFS $DBDIR
do
runcmd "mount $fs"
done
else
echo "Warning: share data $SHAREDFS $DBDIR should be mounted before."
fi
# check if DB is matched in linux
if [ `uname` = "Linux" ]; then
echo "Check DB...."
if [ -s /etc/xcat/cfgloc ]
then
xcatcfg=`cat /etc/xcat/cfgloc|cut -f 1 -d : 2>/dev/null`
else
# SQLsite
xcatcfg=`XCATBYPASS=1 /opt/xcat/bin/lsxcatd -d | cut -f 2 -d "=" 2>/dev/null`
# filter Error message from lsxcatd
echo "$xcatcfg" | grep "Error" && xcatcfg=""
fi
if [ -n "$xcatcfg" ]; then
current_db=$xcatcfg
if [ $xcatcfg = "Pg" ]
then
current_db="postgresql"
fi
echo "Current database is $current_db."
if [ $current_db != "$xcatdb" ]
then
echo "Error: current DB $current_db is not matched with $xcatdb. [Failed]"
clear_env $NIC
exit 1
else
echo "DB is matched with $xcatdb [Passed]"
fi
else
echo "Error: can not get current DB. [Failed]"
clear_env $NIC
exit 1
fi
fi
# Start NFS
@@ -167,31 +225,57 @@ then
fi
##############################################################################
echo "Starting $xcatdb...."
if [ `uname` = "AIX" ]
then
if [ $xcatdb = "DB2" ]
then
runcmd "su - xcatdb -c \"db2start\""
elif [ $xcatdb = "mysql" ]
elif [ $DATABASE = "mysql" ]
then
runcmd "startsrc -g mysql"
fi
else # Linux
if [ $xcatdb != "SQLite" ]
then
runcmd "service $xcatdb start 2>&1 1>/dev/null"
runcmd "service $xcatdb start"
if [ $? -eq 0 ]
then
XCATBYPASS=1 tabdump site >/dev/null
if [ $? -ne 0 ]
then
echo "Error: cannot connect $xcatdb [Failed], exit...."
clear_env $NIC
exit 1
fi
else
echo "Error: service $xcatdb start [Failed], exit...."
clear_env $NIC
exit 1
fi
fi
fi
echo "Starting xCAT...."
if [ `uname` = "AIX" ]
then
runcmd "/opt/xcat/sbin/restartxcatd"
else # Linux
runcmd "service xcatd restart"
if [ $? -ne 0 ]
then
echo "Error: failed to restart xcatd. exiting...."
clear_env $NIC
exit 1
else
tabdump site >/dev/null
if [ $? -ne 0 ]
then
echo "Error: failed to restart xcatd. exiting...."
clear_env $NIC
exit 1
fi
fi
fi
#echo "Start xCAT on the Service Nodes...."
@@ -230,6 +314,11 @@ then
fi
##############################################################################
#Re-make dns
if [ $RESTARTDNS = "yes" ]
then
runcmd "makedns -n"
fi
# Re-make DHCP definitions
echo "Making upto date DHCP configuration file...."
@@ -281,5 +370,9 @@ fi
echo ""
echo ""
echo "This machine is set to active management node successfully, enjoy..."
exit 0
if [ $exit_code -eq 0 ]; then
echo "This machine is set to active management node successfully, enjoy..."
else
echo "This machine is set to active management node, but some service failed..."
fi
exit $exit_code

82
xCAT-server/share/xcat/hamn/deactivate-mn
View File

@@ -24,15 +24,18 @@
# -----------------------------------------------------------------------------
# 2011-12-08 JDW 1.0 Original
# 2013-06-06 xCAT 1.1 Updated version to ship with xCAT
# 2017-10-12 xCAT 2.13.8 Enhance
SHAREDVG=sharedvg # For AIX, shared volumn group name
SHAREDFS="/install /etc/xcat ~/.xcat" # Shared file systems
DB2DIR=/db2database # DB2 only, the db2 database directory
DBDIR=/var/lib/pgsql # database directory
SHAREDFS="/install /etc/xcat /root/.xcat /tftpboot" # Shared file systems
USEDB2=no # if DB2 is being used
USETEAL=no # if TEAL is being used
USEDFM=no # if DFM is being used
USEUNMOUNT=yes # umount share data directory
POWER775=no # Power 775 cluster
CHANGEHOSTNAME=no # change the hostname from virtual ip hostname to the original hostname
xcatdb=`XCATBYPASS=1 /opt/xcat/bin/lsxcatd -d | cut -f 2 -d "=" 2>/dev/null`
exit_code=0
xcatdb=postgresql # support postgrel,DB2,mysql
usage()
{
@@ -45,7 +48,25 @@ EOF
runcmd()
{
echo "Running command: $@"
$@
a=0
while true
do
if [ $a -eq 5 ]; then
echo "$@ [Failed]"
exit_code=1
return 1
elif [ $a -gt 0 ]; then
sleep 3
echo "Retry $a ...... $@"
fi
$@
if [ $? -eq 0 ]; then
echo "$@ [Passed]"
return 0
else
a=$[$a+1]
fi
done
}
################################################################################
@@ -154,7 +175,7 @@ if [ `uname` = "AIX" ]
then
stopsrc -s xcatd
else # Linux
service xcatd stop
runcmd "service xcatd stop"
fi
echo "Stopping database $xcatdb...."
@@ -170,15 +191,16 @@ then
else # Linux
if [ $xcatdb != "SQLite" ]
then
runcmd "service $xcatdb stop 2>&1 1>/dev/null"
runcmd "service $xcatdb stop"
fi
fi
##############################################################################
# Kill nicely, wait a little time for processes to clean-up....
for fs in $SHAREDFS $DB2DIR
do
if [ $USEDB2 = "yes" ]
then
# Kill nicely, wait a little time for processes to clean-up....
for fs in $SHAREDFS $DBDIR
do
echo "Killing processes (nicely) accessing filesystem ${fs}...."
if [ `uname` = "AIX" ]
then
@@ -186,7 +208,8 @@ do
else # Linux
runcmd "fuser -u -k ${fs}"
fi
done
done
fi
# AIX only, Linux has the -l flag could hanldle everything
if [ `uname` = "AIX" ]
@@ -231,14 +254,15 @@ then
runcmd "umount $fs"
done
else
for fs in $SHAREDFS
do
runcmd "umount -l $fs"
done
if [ $USEUNMOUNT = "yes" ]
then
for fs in $SHAREDFS $DBDIR
do
runcmd "umount -l $fs"
done
fi
fi
if [ `uname` = "AIX" ]
then
varyoffvg sharedvg
@@ -257,22 +281,32 @@ then
BOOT_HOSTNAME=`grep HOSTNAME /etc/sysconfig/network | cut -f 2 -d "="`
fi
fi
hostname ${BOOT_HOSTNAME}
runcmd "hostname ${BOOT_HOSTNAME}"
fi
# Remove virtual ip addresses
# Firstly determine the correct IP addresses for each interface
echo "Removing IP Aliases...."
echo "Removing IP Aliase...."
if [ `uname` = "AIX" ]
then
runcmd "ifconfig $NIC delete $VIP"
else # Linux
runcmd "ifconfig $NIC 0.0.0.0 0.0.0.0"
ifconfig $NIC 0.0.0.0 0.0.0.0
ip addr show |grep $VIP 2>&1 1>/dev/null
if [ $? -ne 0 ]; then
echo "IP Aliase $NIC $VIP is removed.[Passed]"
else
echo "Fail to remove IP Aliase $NIC $VIP. [Failed]"
fi
fi
echo ""
echo ""
echo "This machine is set to standby management node successfully..."
exit 0
if [ $exit_code -eq 0 ]
then
echo "This machine is set to standby management node successfully..."
else
echo "This machine is set to standby management node, but some service are failed."
fi
exit $exit_code