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The following commit(s) were added to refs/heads/HDDS-9225-website-v2 by this
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new e91d08a5f HDDS-14256. [Website v2][Docs][Administrator
Guide]Decommissioning an Ozone Manager (#179)
e91d08a5f is described below
commit e91d08a5f4445571de023b6e3001e968fb2faa02
Author: Sarveksha Yeshavantha Raju
<[email protected]>
AuthorDate: Thu Jan 1 00:06:51 2026 +0530
HDDS-14256. [Website v2][Docs][Administrator Guide]Decommissioning an Ozone
Manager (#179)
---
.../01-ozone-manager.md | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git
a/docs/05-administrator-guide/03-operations/03-node-decommissioning-and-maintenance/01-ozone-manager.md
b/docs/05-administrator-guide/03-operations/03-node-decommissioning-and-maintenance/01-ozone-manager.md
index b87e9592f..78654098b 100644
---
a/docs/05-administrator-guide/03-operations/03-node-decommissioning-and-maintenance/01-ozone-manager.md
+++
b/docs/05-administrator-guide/03-operations/03-node-decommissioning-and-maintenance/01-ozone-manager.md
@@ -4,4 +4,19 @@ sidebar_label: Ozone Manager
# Decommissioning an Ozone Manager
-**TODO:** File a subtask under
[HDDS-9859](https://issues.apache.org/jira/browse/HDDS-9859) and complete this
page or section.
+Ozone Manager (OM) decommissioning is the process in which you gracefully
remove one of the OM from the OM HA Ring.
+
+To decommission an OM and remove the node from the OM HA ring, the following
steps need to be executed.
+
+1. Add the *OM NodeId* of the OM Node to be decommissioned to the
`ozone.om.decommissioned.nodes.<omServiceId>` property in `ozone-site.xml` of
all
+ other OMs.
+2. Run the following command to decommission an OM node.
+
+```shell
+ozone admin om decommission -id=<om-service-id>
-nodeid=<decommissioning-om-node-id>
-hostname=<decommissioning-om-node-address> [optional --force]
+```
+
+The *force* option will skip checking whether OM configurations in
`ozone-site.xml` have been updated with the decommissioned node added to
+`ozone.om.decommissioned.nodes` property.
+
+**Note** - It is recommended to bootstrap another OM node before
decommissioning one to maintain HA.
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