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CMS Cloud
Weekly change newsletter 1/2/2025

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Each week, the CMS Cloud program provides a list of upcoming changes, maintenance windows, and updates to help customers build awareness and plan effectively and summarizes changes from the previous week.

This newsletter includes:

* Completed change summary for the week of 12/26/2024 [ #CC ]
* 1/5/2025 - Stop Indexer Scheduled for AWS Maintenance - PROD [ #NMSSM ]
* 1/5/2025 - Add more CCIC Indexes for OneSplunk in Splunk-DC environment [ #Splunk ]
* 1/5/2025 - Restart Production HEC Servers [ #Splunk ]
* Reminder - Open Enrollment (OE12) - Moratorium [ #OE12 ]

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Completed change summary for the week of 12/26/2024

* 12/26/2024 - Non-Marketplace SSM patching - PROD [ https://cloud.cms.gov/News ] [ https://cloud.cms.gov/News ]
* 12/29/2024 - Splunk HTTP Event Collector (HEC) maintenance [ https://cloud.cms.gov/News ]

To learn details about previous changes please go to the News and Updates [ https://cloud.cms.gov/News ] section on cloud.cms.gov. (Secure Access required)

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1*/5/2025 - Stop Indexer Scheduled for AWS Maintenance - PROD*

*Summary*

The indexer cluster will be put into maintenance.  One indexer will be stopped. The indexer cluster will be taken out of maintenance and then backend fix-up tasks will be monitored.  

*Actions we are taking: *

As part of Standard procedure, the CMS Cloud team cluster will be put into maintenance and one indexer will be stopped. This won't impact overall indexer cluster performance. When the single indexer is stopped it may impact searches executing at that time, however, the search heads will redirect to other indexers where copies of the data is stored.

*When is this happening?*

Start Time: Sunday, 1/5/2025 at 12:00 a.m. ET

End Time: Sunday, 1/5/2025 at 6:00 a.m. ET

*Who will be impacted? *

Customers are not expected to be impacted by this change.

*What is the impact? *

The indexer cluster will be put into maintenance. The indexer cluster will be taken out of maintenance and then backend fix-up tasks will be monitored.

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*1*/5/2025 - Add more CCIC Indexes for OneSplunk in Splunk-DC environment**

*Summary*

CCIC requires these new indexes to store OneSplunk data in Splunk.

*Actions we are taking: *

As part of normal procedure, CMS Cloud team will be adding new indexes to the Splunk-DC indexer cluster to support CCIC data ingestion for OneSplunk. If a rolling restart occurs as a result of adding the new index, search performance will be degraded for end users while the cluster is performing the fixup cycle.

*When is this happening?*

Start Time: Sunday, 1/5/2025 at 9:00 a.m. ET

End Time: Sunday, 1/5/2025 at 12:00 p.m. ET

*Who will be impacted? *

Customers are not expected to be impacted by this change.

*What is the impact? *

There is no expected impact, however, if a rolling restart occurs as a result of adding the new indexes, search performance will be degraded for the end users during the change.

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*1*/5/2025 - ***Restart Production HEC Servers*

*Summary*

In order to keep the environment performing well, the CMS Cloud team will conduct maintenance on the Cloud instances of the Http Event Collector (HEC) infrastructure this Sunday, January 5th.

*Actions we are taking: *


* Restart Production HEC Servers

*When is this happening?*

Start Time: Sunday, 1/5/2025 at 9:00 a.m. ET

End Time: Sunday, 1/5/2025 at 12:00 p.m. ET

*Who will be impacted? *

Customers are not expected to be impacted by this change.

*What is the impact? *

Restart Production HEC Servers – There should be no downtime or data loss experienced during the upgrade.

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*Reminder - Open Enrollment (OE12) - Moratorium*

*Summary*

To help ensure that we maintain good system performance and stability during CMS Healthcare Open Enrollment, an annual Moratorium period has been established to shift the scheduling of production system changes into a designated weekly maintenance windows which occurs on most Sundays.

*KEY DATES*: (click to download the OE12 schedule and key dates pdf file [ https://content.govdelivery.com/attachments/USCMS/2024/09/25/file_attachments/3010280/OE%2012%20Moratorium.pdf ])

Start time: Tuesday, October 1, 2024 at 12:00 a.m. ET

End time: Thursday, January 16, 2025 at 5:00 a.m. ET

*Maintenance Windows: *Sunday 12:00 a.m. ET – 12:00 p.m. ET **


* January 5 

*Who will be impacted?*

Any Hybrid Cloud IT Operations team planning to make a change to a system supporting the CMS Healthcare Marketplace either directly or indirectly.  

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Need help? We are here to support you.

If you have any questions, don't hesitate to reach out to your assigned Hosting Coordinator. CMS IT Support can be reached via cloudsupport@cms.hhs.gov, <cloudsupport@cms.hhs.gov> or call (800) 562-1963, and is documented here at Support Page [ https://cloud.cms.gov/cms-cloud-get-help ] on cloud.cms.gov [ http://cloud.cms.gov/ ].



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