cluster ha high availability

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Cloud Ready / High Availability recommendations in ARO

Knowledge Article updated on 28 Nov 2022, 11:24 AM GMT - 0 -

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Microsoft Azure Red Hat OpenShift
インスタンス HA を使用するコンピュートノードで kdump が機能しない

KCS Solution updated on 26 Nov 2022, 9:04 PM GMT - 0 -

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Red Hat OpenStack Platform, Red Hat Enterprise Linux
Restarting compute-unfence-trigger resource is repeated

KCS Solution updated on 17 Nov 2022, 2:40 PM GMT - 0 -

0

Red Hat Enterprise Linux
'pcs cluster auth' fails with "Unable to connect to pcsd" or "Unable to communicate" in a High Availability cluster with pacemaker

KCS Solution updated on 17 Nov 2022, 2:10 AM GMT - 6 -

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Red Hat Enterprise Linux
pcs cluster auth or pcs host auth fails with "Username and/or password is incorrect" and /var/log/secure shows a pam_access error

KCS Solution updated on 17 Nov 2022, 2:09 AM GMT - 1 -

0

Red Hat Enterprise Linux
While configuring the RHEL7 pacemaker cluster, pcs cluster auth fails with message "Error: Unable to communicate with <nodename>"

KCS Solution updated on 17 Nov 2022, 2:09 AM GMT - 9 -

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Red Hat Enterprise Linux
pcs stonith sbd watchdog test fails with "Failed to initialize watchdog!!!" when Pacemaker is running with sbd enabled

KCS Solution updated on 16 Nov 2022, 5:58 PM GMT - 1 -

0

Red Hat Enterprise Linux
A Filesystem resource fails to start when using device's label in a Pacemaker cluster

KCS Solution updated on 16 Nov 2022, 5:56 PM GMT - 0 -

0

Red Hat Enterprise Linux
How can I get a list of commands to recreate the cluster configuration?

KCS Solution updated on 16 Nov 2022, 5:52 PM GMT - 2 -

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Red Hat Enterprise Linux
Is there a way to manage constraints when running pcs resource move?

KCS Solution updated on 16 Nov 2022, 5:48 PM GMT - 0 -

0

Red Hat Enterprise Linux
pcs booth ticket add does not accept mode option

KCS Solution updated on 16 Nov 2022, 5:45 PM GMT - 1 -

0

Red Hat Enterprise Linux
Can I add or remove devices to a fence_scsi or fence_mpath device without restarting the cluster or all the resources?

KCS Solution updated on 16 Nov 2022, 5:41 PM GMT - 2 -

0

Red Hat Enterprise Linux
"pengine: error: native_create_actions: Resource <name> (<class>:<provider>:<type>) is active on 2 nodes attempting recovery" seen when a node rejoins a RHEL High Availability cluster

KCS Solution updated on 16 Nov 2022, 4:24 PM GMT - 3 -

0

Red Hat Enterprise Linux
crm_resource --restart fails to restart a clone instance with a "resource not running on node" error in a Pacemaker cluster

KCS Solution updated on 16 Nov 2022, 4:23 PM GMT - 0 -

0

Red Hat Enterprise Linux
A cluster node cannot be fenced after adding a stonith device

KCS Solution updated on 16 Nov 2022, 4:23 PM GMT - 1 -

0

Red Hat Enterprise Linux
Some pcs commands fail with "Error: cannot load cluster status, xml does not conform to the schema" after updating the packages on a cluster node

KCS Solution updated on 16 Nov 2022, 4:22 PM GMT - 1 -

0

Red Hat Enterprise Linux
Can pacemaker specify Access Control Lists (ACLs) for system groups?

KCS Solution updated on 16 Nov 2022, 4:22 PM GMT - 1 -

0

Red Hat Enterprise Linux
A cluster node take a long time to complete the process of rejoining a cluster.

KCS Solution updated on 16 Nov 2022, 4:11 PM GMT - 0 -

0

Red Hat Enterprise Linux
Why are the following log events being spammed "kernel: dlm: dev_write no op f6b430b3 2a9540c"?

KCS Solution updated on 16 Nov 2022, 4:02 PM GMT - 1 -

0

Red Hat Enterprise Linux
A dlm message repeats over and over: Aug 12 10:38:08 node42 kernel: dlm: shared_data: send_repeat_remove dir 2 5 a406c6e

KCS Solution updated on 16 Nov 2022, 4:01 PM GMT - 0 -

0

Red Hat Enterprise Linux
Support Policies for RHEL High Availability Clusters - OpenStack Virtual Machines as Cluster Members

Knowledge Article updated on 16 Nov 2022, 3:57 PM GMT - 3 -

0

Red Hat Enterprise Linux
Support Policies for RHEL High Availability Clusters - IBM Cloud Virtual Server for VPC

Knowledge Article updated on 16 Nov 2022, 3:42 PM GMT - 1 -

0

Red Hat Enterprise Linux
pcsd reveals version information in the "Server" HTTP header

KCS Solution updated on 16 Nov 2022, 3:40 PM GMT - 3 -

0

Red Hat Enterprise Linux
Does a Pacemaker cluster have a unique identifier?

KCS Solution updated on 16 Nov 2022, 3:37 PM GMT - 1 -

0

Red Hat Enterprise Linux
How do you tell why a resource was stopped when using node health strategy on pacemaker?

KCS Solution updated on 15 Nov 2022, 6:54 PM GMT - 1 -

0

Red Hat Enterprise Linux

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cluster ha high availability

Cloud Ready / High Availability recommendations in ARO

インスタンス HA を使用するコンピュートノードで kdump が機能しない

Restarting compute-unfence-trigger resource is repeated

'pcs cluster auth' fails with "Unable to connect to pcsd" or "Unable to communicate" in a High Availability cluster with pacemaker

pcs cluster auth or pcs host auth fails with "Username and/or password is incorrect" and /var/log/secure shows a pam_access error

While configuring the RHEL7 pacemaker cluster, pcs cluster auth fails with message "Error: Unable to communicate with <nodename>"

pcs stonith sbd watchdog test fails with "Failed to initialize watchdog!!!" when Pacemaker is running with sbd enabled

A Filesystem resource fails to start when using device's label in a Pacemaker cluster

How can I get a list of commands to recreate the cluster configuration?

Is there a way to manage constraints when running pcs resource move?

pcs booth ticket add does not accept mode option

Can I add or remove devices to a fence_scsi or fence_mpath device without restarting the cluster or all the resources?

"pengine: error: native_create_actions: Resource <name> (<class>:<provider>:<type>) is active on 2 nodes attempting recovery" seen when a node rejoins a RHEL High Availability cluster

crm_resource --restart fails to restart a clone instance with a "resource not running on node" error in a Pacemaker cluster

A cluster node cannot be fenced after adding a stonith device

Some pcs commands fail with "Error: cannot load cluster status, xml does not conform to the schema" after updating the packages on a cluster node

Can pacemaker specify Access Control Lists (ACLs) for system groups?

A cluster node take a long time to complete the process of rejoining a cluster.

Why are the following log events being spammed "kernel: dlm: dev_write no op f6b430b3 2a9540c"?

A dlm message repeats over and over: Aug 12 10:38:08 node42 kernel: dlm: shared_data: send_repeat_remove dir 2 5 a406c6e

Support Policies for RHEL High Availability Clusters - OpenStack Virtual Machines as Cluster Members

Support Policies for RHEL High Availability Clusters - IBM Cloud Virtual Server for VPC

pcsd reveals version information in the "Server" HTTP header

Does a Pacemaker cluster have a unique identifier?

How do you tell why a resource was stopped when using node health strategy on pacemaker?

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