DLPX-90573 Support bundle collection leads to a prolonged CPU starvat… (#479)

DLPX-90573 Support bundle collection leads to a prolonged CPU starvation on engines with a high number of containers

Author: grwilson

files/common/var/lib/delphix-platform/ansible/10-delphix-platform/roles/delphix-platform/handlers/main.yaml

@@ -37,3 +37,7 @@
     state: restarted
   listen: "vmware-tools config changed"
   when: ansible_virtualization_type != "systemd-nspawn" and not ansible_is_chroot
+
+- command: /usr/bin/udevadm control --reload
+  listen: "udev config changed"
+  when: ansible_virtualization_type != "systemd-nspawn" and not ansible_is_chroot

files/common/var/lib/delphix-platform/ansible/10-delphix-platform/roles/delphix-platform/tasks/main.yml

@@ -533,6 +533,20 @@
     regexp: 'disk\/by-id\/wwn-'
     replace: 'disk/by-id/wwn/'
 
+#
+# The default udev persistent storage rule will call 'blkid' on every
+# device except sr devices.  This can be very expensive when running
+# on a system with lots of zvols and can result in udev event storms
+# that can last hours. This will override the default rule and skip this
+# call on zvols.
+#
+- lineinfile:
+    path: /etc/udev/rules.d/60-persistent-storage.rules
+    backrefs: yes
+    regexp: '(KERNEL!="sr\*)\"(.*)'
+    line: '\1|zd*"\2'
+  notify: "udev config changed"
+
 #
 # Enable CRA for external variants
 #