Cluster API to Detect Failover Events

Question

Cluster API to Detect Failover Events

Atasha 1

I want to create an application that will listen or detect failover events like when a cluster has failed over to another node (Event ID 1641). Is there any cluster API to catch this event like GetClusterNotify?

Anonymous

2021-05-06T06:44:26.58+00:00

Hi,
I would like to check if the issue has been fixed? If yes, please help accept answer. If you need any additional assistance, please feel free to feedback.
Best Regards,
Danny
Atasha 1 Reputation point

2021-05-06T08:54:29.87+00:00

Hi,

Sorry, no. I used GetClusterNotify and GetClusterNotifyV2 to detect the failover. However, I want to know the meaning or value of the buffer used in GetClusterNotifyV2. Do you have any idea on this? Thank you
Anonymous

2021-05-10T07:20:42.657+00:00

Hi,
I would like to check if the issue has been fixed? If yes, please help accept answer. If you need any additional assistance, please feel free to feedback.
Best Regards,
Danny
Atasha 1 Reputation point

2021-05-10T07:24:04.033+00:00

Hi,

Yes but we used different approach. Thanks for all the help
Anonymous

2021-05-10T07:27:03.33+00:00

Hi,
Thank you for your reply.
Best regards,
Danny

3 answers

Your answer

Anonymous

2021-05-06T06:44:26.58+00:00

Hi,
I would like to check if the issue has been fixed? If yes, please help accept answer. If you need any additional assistance, please feel free to feedback.
Best Regards,
Danny
Atasha 1 Reputation point

2021-05-06T08:54:29.87+00:00

Hi,

Sorry, no. I used GetClusterNotify and GetClusterNotifyV2 to detect the failover. However, I want to know the meaning or value of the buffer used in GetClusterNotifyV2. Do you have any idea on this? Thank you
Anonymous

2021-05-10T07:20:42.657+00:00

Hi,
I would like to check if the issue has been fixed? If yes, please help accept answer. If you need any additional assistance, please feel free to feedback.
Best Regards,
Danny
Atasha 1 Reputation point

2021-05-10T07:24:04.033+00:00

Hi,

Yes but we used different approach. Thanks for all the help
Anonymous

2021-05-10T07:27:03.33+00:00

Hi,
Thank you for your reply.
Best regards,
Danny

Answer 1

Anonymous

Hi Atasha,
This might help:
https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-cmrp/d529b7a9-9f5b-4191-b093-dbb38ffa4277

Thanks for your time.
Best regards,
Danny

-----------------------------

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Answer 2

Anonymous

Hi,
About the other question, you can refer to this article:
https://learn.microsoft.com/en-us/windows/win32/api/clusapi/nf-clusapi-getclusternotifyv2

Thanks for your time.
Best regards,
Danny

-----------------------------

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Atasha 1 Reputation point

2021-05-06T09:25:12.577+00:00

Hi,

Yes, I am referring to that article, however I don't understand the use of the buffer parameter. Does it have structure?
Anonymous

2021-05-06T09:43:49.27+00:00

Hi,
Hope this will help explain the use and value of buffers:
https://learn.microsoft.com/en-us/sql/odbc/reference/develop-app/buffers?view=sql-server-ver15

For parameters, I didn’t find any official documents, you might need to turn to some third party links.

Thanks for your understanding.
Best regards,
Danny

-----------------------------

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Atasha 1 Reputation point

2021-05-06T10:02:45.46+00:00

Hi,

Thank you so much for the information. However, what I want to know is the value of the buffer used when GetClusterNotify is called. In my case, the value of the buffer I got is 0100000003000400240000053007400610074007500730049006E0066006F0072006D006100740069006F006E0000000600010008000000010000000000000000000000F078C4A0. The filterFlag is CLUSTER_CHANGE_CLUSTER_STATE_V2

Answer 3

Anonymous

Hi,
Hope this will help:
https://learn.microsoft.com/en-us/azure/databricks/dev-tools/api/latest/clusters

Thanks for your time.
Best regards,
Danny

-----------------------------

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Cluster API to Detect Failover Events

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