Crm

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configure

show

Anzeigen der Konfiguration 

root@worf:~# crm configure show
node 1: worf
node 2: kurn
primitive res-ip IPaddr2 \
	params ip=192.168.255.100 nic=eth0 \
	op monitor interval=10
primitive res-ipsec lsb:ipsec \
	op monitor interval=30s
primitive res-iptables lsb:iptables \
	op monitor interval=30s
primitive res-pppoe lsb:pppoe \
	op monitor interval=30s
group gr-vpn-gw res-pppoe res-ip res-iptables res-ipsec \
	meta target-role=Started
location cli-prefer-gr-vpn-gw gr-vpn-gw role=Started inf: worf
property cib-bootstrap-options: \
	have-watchdog=false \
	dc-version=1.1.14-70404b0 \
	cluster-infrastructure=corosync \
	cluster-name=debian \
	stonith-enabled=false \
	no-quorum-policy=ignore

save

Sichern der Konfiguration in eine Datei 

root@worf:~# crm configure save vpn-gw.conf

load

Sichern der Konfiguration in eine Datei 

root@worf:~# crm configure load update vpn-gw.conf

root@worf:~# crm configure load replace vpn-gw.conf

edit

Interaktiver Modus 

root@worf:~# crm configure edit

comit

  • Änderungen übernehmen
crm(live)# configure comit
INFO: apparently there is nothing to commit
INFO: try changing something first

monitor

  • monitor resourcen-namen (intervall der checks in minuten):(timeout des monitor befehls)
 monitor fs_res 6:10

delete

  • löschen einer resource
crm(live)# configure delete <res-apache2>
INFO: hanging location:cli-prefer-res-apache2 deleted
INFO: constraint colocation:fs_drbd_colo updated

erase

  • erase kann die nodes aus der Konfiguration löschen
crm(live)# configure erase nodes

node

  • node hinzufügen
crm(live)# configure  node 1: tic

rename

  • umbenen eines cib objects
crm(live)configure# rename virtual-ip virtual-ipv4
INFO: modified colocation:fs_drbd_colo from virtual-ip to virtual-ipv4

validate_all

  • überprüfen eines cib objects
crm(live)configure# validate_all virtual-ipv4
INFO: Using calculated netmask for 192.168.244.80: 255.255.248.0

backup wieder einspielen

- crm configure show > backup_config.xml
- crash!! 
- cibadmin -E --force
- edit configuration to delete last-lrm-refresh etc.

* crm configure < backup_config.xml

- cibadmin -Q > backupfile.xml
- crash!! 
- cibadmin -E --force
- editing backupfile.xml to removing the <cib ..../> meta 
information, to avoid the version trouble

* cibadmin -C --xml-file backupfile.xml

rctest

  • testet die resource auf beiden seiten

parallax ssh muss installiern sein

https://github.com/krig/parallax 

rsctest virtual-ip-2
Probing resources .Warning: could not find an executable path for askpass because
Parallax SSH was not installed correctly.  Password prompts will not
work.
testing on tic: virtual-ip-2
testing on tuc: virtual-ip-2

verify

  • Überprüft die Konfiguration auf Fehler (bei korrekter Konfiguraton erscheint keine Meldung)
crm(live)configure# verify
ERROR: error: unpack_location_tags:	Constraint 'cli-prefer-drbd_res': Invalid reference to 'drbd_res'
Errors found during check: config not valid

corosync

show

  • zeigt die corosync-Konfiguration an
totem {
    version: 2
    cluster_name: debian
    secauth: off
    transport:udpu
    interface {
        ringnumber: 0
        bindnetaddr: 10.144.144.0
        broadcast: yes
        mcastport: 5405
    }
}

nodelist {
    node {
        ring0_addr: 10.144.144.2
        name: tic
        nodeid: 1

    }
    node {
        ring0_addr: 10.144.144.1
        name: tuc
        nodeid: 2
    }
}

quorum {
    provider: corosync_votequorum
    two_node: 1
    wait_for_all: 1
    last_man_standing: 1
    auto_tie_breaker: 0
}

edit

  • öffnet die Datei, die sich mit "show" anzeigen lässt, in vi

status

  • zeigt den status von corosync an
crm(live)corosync# status
Printing ring status.
Local node ID 1
RING ID 0
	id	= 10.144.144.2
	status	= ring 0 active with no faults
Quorum information
------------------
Date:             Thu Oct 20 14:58:41 2016
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          1
Ring ID:          64
Quorate:          Yes

Votequorum information
----------------------
Expected votes:   2
Highest expected: 2
Total votes:      2
Quorum:           1  
Flags:            2Node Quorate WaitForAll LastManStanding 

Membership information
----------------------
    Nodeid      Votes Name
         2          1 10.144.144.1
         1          1 10.144.144.2 (local)

history

events

crm(live)history# events
INFO: Retrieving information from cluster nodes, please wait...
ERROR: no dateutil, please provide times as printed by date(1)
ERROR: datetime_to_timestamp error: unsupported operand type(s) for -: 'NoneType' and 'datetime.datetime'
WARNING: giving up on log /var/cache/crm/history/live/tuc/ha-log.txt

info

crm(live)history# info
INFO: fetching new logs, please wait ...
ERROR: no dateutil, please provide times as printed by date(1)
ERROR: datetime_to_timestamp error: unsupported operand type(s) for -: 'NoneType' and 'datetime.datetime'
Source: live
Created on: Thu Oct 20 15:02:19 CEST 2016
By: report -Z -Q -f Thu Oct 20 14:02:00 2016 /var/cache/crm/history/live
Period: 2016-10-20 16:02:00 - --/--/-- --:--:--
Nodes: tic tuc
Groups: 
Resources: drbd_res fs_res virtual-ip virtual-ip-2
Transitions:

latest

crm(live)history# latest
ERROR: no dateutil, please provide times as printed by date(1)
ERROR: datetime_to_timestamp error: unsupported operand type(s) for -: 'NoneType' and 'datetime.datetime'
INFO: fetching new logs, please wait ...
ERROR: no transitions found in the source

resource

status

  • Den Zustand aller resourcen anzeigen
crm(live)resource# status
 Master/Slave Set: drbd_master_slave [drbd_res]
     Slaves: [ tic tuc ]
 fs_res	(ocf::heartbeat:Filesystem):	Stopped
 virtual-ip	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped
 virtual-ip-2	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped

ban

  • unter allen Umständen verhindern dass eine resource auf einer Node gestartet wird
crm(live)resource# ban virtual-ip-2 tuc
WARNING: Creating rsc_location constraint 'cli-ban-virtual-ip-2-on-tuc' with a score of -INFINITY for resource virtual-ip-2 on tuc.
	This will prevent virtual-ip-2 from running on tuc until the constraint is removed using the 'crm_resource --clear' command or manually with cibadmin
	This will be the case even if tuc is the last node in the cluster
	This message can be disabled with --quiet

cleanup

  • den Status einer Resource neu überprüfen
crm(live)resource# cleanup virtual-ip-2
Cleaning up virtual-ip-2 on tic, removing fail-count-virtual-ip-2
Cleaning up virtual-ip-2 on tuc, removing fail-count-virtual-ip-2

  * The configuration specifies that 'virtual-ip-2' should remain stopped

Waiting for 2 replies from the CRMd.. OK

start

  • eine resource auf einer Node starten
crm(live)resource# start virtual-ip
crm(live)resource# status
 Master/Slave Set: drbd_master_slave [drbd_res]
     Masters: [ tic ]
     Slaves: [ tuc ]
 fs_res	(ocf::heartbeat:Filesystem):	Started
 virtual-ip	(ocf::heartbeat:IPaddr):	Started
 virtual-ip-2	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped

stop

  • eine resource auf einer Node stoppen
crm(live)resource# stop virtual-ip
crm(live)resource# status
 Master/Slave Set: drbd_master_slave [drbd_res]
     Slaves: [ tic tuc ]
 fs_res	(ocf::heartbeat:Filesystem):	Stopped
 virtual-ip	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped
 virtual-ip-2	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped


restart

  • eine resource auf einer Node neu starten
crm(live)resource# restart virtual-ip
INFO: ordering virtual-ip to stop
waiting for stop to finish . done
INFO: ordering virtual-ip to start

migrate

  • eine resource auf dieser Node stoppen und auf einer anderen starten
crm(live)resource# migrate virtual-ip tuc
crm(live)resource# status
 Master/Slave Set: drbd_master_slave [drbd_res]
     Masters: [ tic ]
     Slaves: [ tuc ]
 fs_res	(ocf::heartbeat:Filesystem):	Started
 virtual-ip	(ocf::heartbeat:IPaddr):	Started
 virtual-ip-2	(ocf::heartbeat:IPaddr):	(target-role:Stopped) Stopped

script

list

  • verfügbare Scripte für die Resourcenbildung anzeigen
crm(live)script# list
Basic:

mailto           MailTo
virtual-ip       Virtual IP

Database:

database         MySQL/MariaDB Database
db2              IBM DB2 Database
db2-hadr         IBM DB2 Database with HADR
oracle           Oracle Database

Filesystem:

clvm             Cluster-aware LVM
clvm-vg          Cluster-aware LVM (Volume Group)
drbd             DRBD Block Device
filesystem       Filesystem (mount point)
gfs2             gfs2 filesystem (cloned)
gfs2-base        gfs2 filesystem base (cloned)
ocfs2            OCFS2 filesystem (cloned)
raid-lvm         RAID hosting LVM

SAP:

sap-as           SAP ASCS Instance
sap-ci           SAP Central Instance
sap-db           SAP Database Instance
sap-simple-stack SAP Simple Stack Instance
sap-simple-stack-plus SAP SimpleStack+ Instance

Server:

apache           Apache Webserver
exportfs         NFS Exported File System
haproxy          HAProxy
nfsserver        NFS Server

Stonith:

libvirt          STONITH for libvirt (kvm / Xen)
sbd              SBD, Shared storage based fencing

show

  • den Inhalt eines scripts anzeigen lassen
crm(live)script# show virtual-ip
virtual-ip (Basic)
Virtual IP

 This Linux-specific resource manages IP alias IP addresses. It can
add an IP alias, or remove one. In addition, it can implement Cluster
Alias IP functionality if invoked as a clone resource.

If used as a clone, you should explicitly set clone-node-max >= 2,
and/or clone-max < number of nodes. In case of node failure, clone
instances need to be re-allocated on surviving nodes. This would not
be possible if there is already an instance on those nodes, and clone-
node-max=1 (which is the default).

1. Manages virtual IPv4 and IPv6 addresses (Linux specific version)

  id (required)  (unique) 
      Identifier for the cluster resource
  ip (required)  (unique) 
      IPv4 or IPv6 address
  cidr_netmask
      CIDR netmask
  broadcast
      Broadcast address
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