HoustonPutman commented on a change in pull request #226:
URL:
https://github.com/apache/lucene-solr-operator/pull/226#discussion_r585699930
##########
File path: docs/solr-cloud/solr-cloud-crd.md
##########
@@ -810,3 +812,22 @@ Also, changing the password for this user in the K8s
secret will not update Solr
If you enable basic auth for your SolrCloud cluster, then you need to point
the Prometheus exporter at the basic auth secret;
refer to [Prometheus Exporter with Basic
Auth](../solr-prometheus-exporter/README.md#prometheus-exporter-with-basic-auth)
for more details.
+
+## Various Runtime Parameters
+
+There are various runtime parameters that allow you to customize the running
of your Solr Cloud via the Solr Operator.
+
+### Time to wait for Solr to be killed gracefully
+
+The Solr Operator manages the Solr StatefulSet in a way that when a Solr pod
needs to be stopped, or deleted, Kubernetes and Solr are on the same page for
how long to wait for the process to die gracefully.
+
+The default time given is 60 seconds, before Solr or Kubernetes tries to
forcefully stop the Solr process.
+You can override this default with the field:
+
+```yaml
+spec:
+ ...
+ customSolrKubeOptions:
+ podOptions:
+ terminationGracePeriodSeconds: 120
Review comment:
That command is kind of similar to kill -9. I'm not sure there is a way
to protect against that. Is there a way to figure out what grace period is
given when your pod is trying to be deleted?
Most of the time, Pods are going to be deleted by Kubernetes (the
statefulset controller) or the solrcloud controller, during managed upgrades.
Neither of those use a different grace period, so the usage here is safe.
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