Merge pull request #29522 from chaitanyaenr/etcd_defrag

Include etcd degragmentation instructions

Author: jeana-redhat

modules/etcd-defrag.adoc

@@ -1,6 +1,7 @@
 // Module included in the following assemblies:
 //
 // * post_installation_configuration/cluster-tasks.adoc
+// * scalability_and_performance/recommended-host-practices.adoc
 
 [id="etcd-defrag_{context}"]
 = Defragmenting etcd data

modules/recommended-etcd-practices.adoc

@@ -1,8 +1,6 @@
 // Module included in the following assemblies:
 //
 // * scalability_and_performance/recommended-host-practices.adoc
-// * post_installation_configuration/cluster-tasks.adoc
-// * post_installation_configuration/node-tasks.adoc
 
 [id="recommended-etcd-practices_{context}"]
 = Recommended etcd practices
@@ -18,7 +16,8 @@ only accepts key reads and deletes. Some of the key metrics to monitor are
 `etcd_mvcc_db_total_size_in_use_in_bytes` which indicates the actual
 database usage after a history compaction, and
 `etcd_debugging_mvcc_db_total_size_in_bytes` which shows the database size
-including free space waiting for defragmentation.
+including free space waiting for defragmentation. Instructions on defragging 
+etcd can be found in the `Defragmenting etcd data` section.
 
 Etcd writes data to disk, so its performance strongly depends on disk performance. Etcd 
 persists proposals on disk. Slow disks and disk activity from other processes might cause long 

post_installation_configuration/cluster-tasks.adoc

@@ -565,7 +565,6 @@ include::modules/nodes-cluster-enabling-features-cluster.adoc[leveloffset=+1]
 == etcd tasks
 Back up etcd, enable or disable etcd encryption, or defragment etcd data.
 
-include::modules/recommended-etcd-practices.adoc[leveloffset=+2]
 include::modules/about-etcd-encryption.adoc[leveloffset=+2]
 include::modules/enabling-etcd-encryption.adoc[leveloffset=+2]
 include::modules/disabling-etcd-encryption.adoc[leveloffset=+2]

post_installation_configuration/node-tasks.adoc

@@ -56,7 +56,6 @@ include::modules/recommended-node-host-practices.adoc[leveloffset=+1]
 include::modules/create-a-kubeletconfig-crd-to-edit-kubelet-parameters.adoc[leveloffset=+2]
 include::modules/modify-unavailable-workers.adoc[leveloffset=+2]
 include::modules/master-node-sizing.adoc[leveloffset=+2]
-include::modules/recommended-etcd-practices.adoc[leveloffset=+2]
 include::modules/setting-up-cpu-manager.adoc[leveloffset=+2]
 
 [id="post-install-huge-pages"]

scalability_and_performance/recommended-host-practices.adoc

@@ -17,6 +17,8 @@ include::modules/master-node-sizing.adoc[leveloffset=+1]
 
 include::modules/recommended-etcd-practices.adoc[leveloffset=+1]
 
+include::modules/etcd-defrag.adoc[leveloffset=+1]
+
 include::modules/infrastructure-components.adoc[leveloffset=+1]
 
 include::modules/infrastructure-moving-monitoring.adoc[leveloffset=+1]