yum module doing update takes much, much longer than command line equivalent

[jswindle-rtn]

SUMMARY

Yum update using yum module takes much longer to execute than command line equivalent.
Running playbook with '-v' or '-vvv' brings execution times to similar of command line equivalent.
Ansible v2.7.8 and v2.8.5 exhibit same behavior. Not able to test against latest or devel.
Possibly related to #51284 but not strictly related to "name: '*'" as argument because "name: kernel" has long execution times too.
See attached file for timings. ansible-yum-module-compare.docx

ISSUE TYPE

• Bug Report

COMPONENT NAME

yum module

ANSIBLE VERSION

ansible 2.7.8
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/ansible/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /bin/ansible
  python version = 2.7.5 (default, Jun 11 2019, 14:33:56) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]


ansible 2.8.5
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/ansible/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Jun 11 2019, 14:33:56) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]

CONFIGURATION

ANSIBLE_PIPELINING(/etc/ansible/ansible.cfg) = True
ANSIBLE_SSH_ARGS(/etc/ansible/ansible.cfg) = -C -o ControlMaster=auto -o Control
ANSIBLE_SSH_RETRIES(/etc/ansible/ansible.cfg) = 10
DEFAULT_FORKS(/etc/ansible/ansible.cfg) = 20
DEFAULT_LOCAL_TMP(/etc/ansible/ansible.cfg) = /tmp/.ansible/tmp/ansible-local-10
DEFAULT_LOG_PATH(/etc/ansible/ansible.cfg) = /var/log/ansible/ansible.log
DEFAULT_ROLES_PATH(/etc/ansible/ansible.cfg) = [u'/etc/ansible/roles', u'/usr/sh
DEFAULT_STDOUT_CALLBACK(/etc/ansible/ansible.cfg) = debug

OS / ENVIRONMENT

RHEL 7.6
VM running on ESXI 6.7
ESXI 6.7 installed on Dell R430

STEPS TO REPRODUCE

- name: "Install RHEL 7 kernel patch (This can take a while, so be patient)"
  yum:
    name: "kernel"
    state: latest
    update_cache: yes
  tags: patches

- name: "Install RHEL 7 patches (This can take a while, so be patient)"
  yum:
    name: "*"
    state: latest
    update_cache: no
  tags: patches


ansible-playbook playbook.yml –l laptop

Local yum repo hosted on ansible command host. Repo contains RHEL 7 bugfix and security patches since RHEL 7.6 release.

ansible-yum-module-compare.docx

EXPECTED RESULTS

Expect the yum update kernel and yum update '*' execution times to be similar to yum update command line execution time plus small overhead.
ansible-playbook -v or -vvv does as expected.

ACTUAL RESULTS

ansible-playbook without -v or -vvv
2019-10-29 19:09:13,716 p=31864 u=ansible |  TASK [rhel7_all : Install RHEL 7 kernel patch (This can take a while, so be patient)] ***
2019-10-29 19:32:16,186 p=31864 u=ansible |  changed: [laptop]
2019-10-29 19:32:16,215 p=31864 u=ansible |  TASK [rhel7_all : Install RHEL 7 patches (This can take a while, so be patient)] ***
2019-10-29 22:56:39,231 p=31864 u=ansible |  changed: [laptop]
2019-10-29 22:56:39,259 p=31864 u=ansible |  TASK [rhel7_all : Remove old kernels] ******************************************

ansible-playbook with -v  (abbreviated output just to show timing)
2019-10-30 16:12:52,480 p=15474 u=ansible |  TASK [rhel7_all : Install RHEL 7 kernel patch (This can take a while, so be patient)] ***
2019-10-30 16:14:31,403 p=15474 u=ansible |  changed: [laptop] => {
    "changed": true,
    "obsoletes": {
. . .
2019-10-30 16:14:31,431 p=15474 u=ansible |  TASK [rhel7_all : Install RHEL 7 patches (This can take a while, so be patient)] ***
2019-10-30 16:35:13,995 p=15474 u=ansible |  changed: [laptop] => {
    "changed": true,
    "obsoletes": {

[ansibot]

Files identified in the description:

• lib/ansible/modules/packaging/os/yum.py

If these files are inaccurate, please update the component name section of the description or use the !component bot command.

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[ansibot]

cc @Akasurde @berenddeschouwer @kustodian @maxamillion @verm666
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[maxamillion]

resolved_by_pr #63713