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[Docs] Enhance rolling upgrade guide (#49686) #49692

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Nov 28, 2019
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[Docs] Enhance rolling upgrade guide (#49686) #49692

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15 changes: 14 additions & 1 deletion docs/reference/upgrade/rolling_upgrade.asciidoc
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Expand Up @@ -158,7 +158,20 @@ recovery completes.
--

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

--

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