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[Docs] Enhance rolling upgrade guide (#49686) 

Add a couple of pointers for the user to check the
overall cluster health and the version of ES running
on every node.

Fixes: #49670

(cherry picked from commit 8ca11f54cd839f41632c556601e94da67e91a3d1)
This commit is contained in:
Marios Trivyzas 2019-11-28 17:00:41 +01:00
parent 1824a2fa58
commit d5842aebab
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1 changed files with 14 additions and 1 deletions
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15
docs/reference/upgrade/rolling_upgrade.asciidoc
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@ -163,7 +163,20 @@ recovery completes.
-- --
When the node has recovered and the cluster is stable, repeat these steps When the node has recovered and the cluster is stable, repeat these steps
for each node that needs to be updated. for each node that needs to be updated. You can monitor the health of the cluster
with a <<cat-health,`_cat/health`>> request:
[source,console]
--------------------------------------------------
GET /_cat/health?v
--------------------------------------------------
And check which nodes have been upgraded with a <<cat-nodes,`_cat/nodes`>> request:
[source,console]
--------------------------------------------------
GET /_cat/nodes?h=ip,name,version&v
--------------------------------------------------
-- --