Linux cluster commands<\/p>\n
Checking status of the cluster:
\n# clustat
\n# clustat -m Display status of and exit
\n# clustat -s Display status of and exit
\n# clustat -l Use long format for services<\/p>\n
# cman_tool status Show local record of cluster status
\n# cman_tool nodes Show local record of cluster nodes
\n# cman_tool nodes -af<\/p>\n
# ccs_tool lsnode List nodes
\n# ccs_tool lsfence List fence devices<\/p>\n
# group_tool displays the status of fence, dlm and gfs groups
\n# group_tool ls displays the list of groups and their membership<\/p>\n
Resource Group Control Commands:
\nclusvcadm -d Disable
\nclusvcadm -e Enable
\nclusvcadm -e -F Enable according to failover domain rules
\nclusvcadm -e -m Enable on
\nclusvcadm -r -m Relocate to member>
\nclusvcadm -R Restart a group in place.
\nclusvcadm -s Stop<\/p>\n
Resource Group Locking (for cluster Shutdown \/ Debugging):
\nclusvcadm -l Lock local resource group manager.
\nThis prevents resource groups from
\nstarting on the local node.
\nclusvcadm -S Show lock state
\nclusvcadm -Z Freeze group in place
\nclusvcadm -U Unfreeze\/thaw group<\/p>\n
clusvcadm -u Unlock local resource group manager.
\nThis allows resource groups to start on the local node.<\/p>\n
clusvcadm -c Convalesce (repair, fix) resource group.
\nAttempts to start failed, non-critical resources within a resource group.
\n###################################################################################################
\nCluster Command Quick Reference<\/p>\n
1)Cluster status
\nclustat Display the status of the cluster as viewed from the executing host<\/p>\n
2)Cluster services administration
\nclusvcadm Manage services across the cluster.<\/p>\n
3)Move a service to another node
\nclusvcadm \u2013r -m<\/p>\n
4)Stop a service
\nclusvcadm \u2013d<\/p>\n
5)Start a service
\nclusvcadm \u2013e<\/p>\n
6)Cluster configuration system
\nccs_tool Online management of cluster configuration<\/p>\n
7)Update the cluster.conf file across the cluster
\nccs_tool update \/etc\/cluster\/cluster.conf
\n8)Cluster Management
\ncman_tool Manage cluster nodes and display the current state of the cluster<\/p>\n
9)Display status
\ncman_tool status<\/p>\n
10)Fencing tools<\/p>\n
11)Eject a node from the cluster
\nfence_node<\/p>\n
12)Print fence debug messages
\nfence_tool dump<\/p>\n","protected":false},"excerpt":{"rendered":"
Linux cluster commands<\/p>\n
Checking status of the cluster: # clustat # clustat -m Display status of and exit # clustat -s Display status of and exit # clustat -l Use long format for services<\/p>\n
# cman_tool status Show local record of cluster status # cman_tool nodes Show local record of cluster nodes # cman_tool nodes […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,4,17],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3349"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3349"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3349\/revisions"}],"predecessor-version":[{"id":3350,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/3349\/revisions\/3350"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}