From 6779f91b88bb3486233db5c3ea06677c84a8e24f Mon Sep 17 00:00:00 2001 From: Marc Pujol Date: Thu, 18 Feb 2016 09:15:07 +0100 Subject: [PATCH] Avoid duplicate /bin/lsblk calls in the setup module. The setup module calls /bin/lsblk once for each device appearing in the /etc/mtab file. However, the same device appears there mutliple times when the system uses bind-mounts. As a result, /bin/lsblk is being called repeatedly to get the uuid of the same device. On a system with many mounts, this leads to a TimeoutError in the get_mount_facts function of the setup module as described in #14551. Fixes #14551 --- lib/ansible/module_utils/facts.py | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/lib/ansible/module_utils/facts.py b/lib/ansible/module_utils/facts.py index 4db79214d3f..dc0d9ac1553 100644 --- a/lib/ansible/module_utils/facts.py +++ b/lib/ansible/module_utils/facts.py @@ -1037,6 +1037,7 @@ class LinuxHardware(Hardware): @timeout(10) def get_mount_facts(self): + uuids = dict() self.facts['mounts'] = [] mtab = get_file_content('/etc/mtab', '') for line in mtab.split('\n'): @@ -1052,13 +1053,17 @@ class LinuxHardware(Hardware): except OSError: continue - uuid = 'NA' - lsblkPath = module.get_bin_path("lsblk") - if lsblkPath: - rc, out, err = module.run_command("%s -ln --output UUID %s" % (lsblkPath, fields[0]), use_unsafe_shell=True) - - if rc == 0: - uuid = out.strip() + if fields[0] in uuids: + uuid = uuids[fields[0]] + else: + uuid = 'NA' + lsblkPath = module.get_bin_path("lsblk") + if lsblkPath: + rc, out, err = module.run_command("%s -ln --output UUID %s" % (lsblkPath, fields[0]), use_unsafe_shell=True) + + if rc == 0: + uuid = out.strip() + uuids[fields[0]] = uuid self.facts['mounts'].append( {'mount': fields[1],