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Bug 1203820

Summary: First nfs mount command taking long time after every reboot.
Product: Red Hat Enterprise Linux 7 Reporter: VIKRANT <vaggarwa>
Component: rpcbindAssignee: Steve Dickson <steved>
Status: CLOSED ERRATA QA Contact: Yongcheng Yang <yoyang>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.1CC: arawat, btotty, dwoodruf, dwysocha, eguan, fsorenso, hbarcomb, jreznik, jscalf, matthew, pdwyer, plambri, smayhew, sreber, steved, vanhoof, yoyang
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: rpcbind-0.2.0-27.el7 Doc Type: Bug Fix
Doc Text:
Cause: The first NFS mount after the system rebooted Consequence: The mount would hang for noticeable long time before successfully completing Fix: Added support for systemd socket activation to rpcbind (see bz1203820) Result: The first NFS mount, after a reboot, no longer hang.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2015-11-19 05:32:17 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1199644    
Bug Blocks: 1133060    

Description VIKRANT 2015-03-19 18:06:47 UTC 
Description of problem: nfs mount command after the reboot is taking 1 minute to mount the share subsequent mounts are getting mounted in expected time.


Version-Release number of selected component (if applicable):  
3.10.0-229.el7.x86_64
Red Hat Enterprise Linux Server release 7.1 (Maipo)

How reproducible: Everytime.


Steps to Reproduce:
1. mount the nfs share using below command.

[root@Node71 ~]# time mount.nfs -o vers=3 -vvv 192.168.111.121:/boot /mnt
mount.nfs: timeout set for Thu Mar 19 07:01:11 2015
mount.nfs: trying text-based options 'vers=3,addr=192.168.111.121'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.111.121 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.111.121 prog 100005 vers 3 prot UDP port 34469

real    1m0.460s                <<<<<
user    0m0.012s
sys     0m0.027s

2. unmount the share and mount it again it will not take much time now.

[root@Node71 ~]# time mount.nfs -o vers=3 -vvv 192.168.111.121:/boot /mnt
mount.nfs: timeout set for Thu Mar 19 07:04:07 2015
mount.nfs: trying text-based options 'vers=3,addr=192.168.111.121'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.111.121 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.111.121 prog 100005 vers 3 prot UDP port 34469

real    0m0.033s             <<<<<
user    0m0.000s
sys     0m0.018s

3. Reboot the server again we are back at step 1.

Actual results: Time delay while mounting the nfs share seems to be due to  starting of the nfs client services. Saw 1 minute delay in start of rpc-statd.service

[root@Node71 ~]# journalctl -u rpc-statd.service
-- Logs begin at Thu 2015-03-19 06:57:06 EDT, end at Thu 2015-03-19 07:30:24 EDT. --
Mar 19 06:59:11 Node71 systemd[1]: Starting NFS status monitor for NFSv2/3 locking....
Mar 19 06:59:11 Node71 rpc.statd[2518]: Version 1.3.0 starting
Mar 19 06:59:11 Node71 rpc.statd[2518]: Flags: TI-RPC                               <<<<<<<
Mar 19 07:00:11 Node71 systemd[1]: Started NFS status monitor for NFSv2/3 locking.. <<<<<<<

[root@Node71 ~]# journalctl -u rpcbind
-- Logs begin at Thu 2015-03-19 06:57:06 EDT, end at Thu 2015-03-19 07:30:24 EDT. --
Mar 19 06:59:11 Node71 systemd[1]: Starting RPC bind service...
Mar 19 06:59:11 Node71 systemd[1]: Started RPC bind service.


Expected results: NFS mount command at first attempt should not take 1 minute and rpc.statd nfs-lock should start at boot.

Additional info: Below are the /var/log/message logs.

Mar 19 06:59:11 Node71 systemd: Starting Preprocess NFS configuration...
Mar 19 06:59:11 Node71 systemd: Starting RPC Port Mapper.
Mar 19 06:59:11 Node71 systemd: Reached target RPC Port Mapper.
Mar 19 06:59:11 Node71 systemd: Starting Host and Network Name Lookups.
Mar 19 06:59:11 Node71 systemd: Reached target Host and Network Name Lookups.
Mar 19 06:59:11 Node71 systemd: Started Preprocess NFS configuration.
Mar 19 06:59:11 Node71 systemd: Starting NFS status monitor for NFSv2/3 locking....
Mar 19 06:59:11 Node71 rpc.statd[2518]: Version 1.3.0 starting
Mar 19 06:59:11 Node71 rpc.statd[2518]: Flags: TI-RPC
Mar 19 06:59:11 Node71 systemd: Starting RPC bind service...
Mar 19 06:59:11 Node71 systemd: Started RPC bind service.                           <<<<<<
Mar 19 07:00:11 Node71 systemd: Started NFS status monitor for NFSv2/3 locking..    <<<<<<
Mar 19 07:00:11 Node71 kernel: FS-Cache: Loaded
Mar 19 07:00:11 Node71 kernel: RPC: Registered named UNIX socket transport module.
Mar 19 07:00:11 Node71 kernel: RPC: Registered udp transport module.
Mar 19 07:00:11 Node71 kernel: RPC: Registered tcp transport module.
Mar 19 07:00:11 Node71 kernel: RPC: Registered tcp NFSv4.1 backchannel transport module.
Mar 19 07:00:11 Node71 kernel: FS-Cache: Netfs 'nfs' registered for caching
Comment 3 Scott Mayhew 2015-03-31 14:18:57 UTC 
Added bug 1199644 to the Depends On field since the patch from Fedora bug 1158164 requires libsystemd, which isn't in RHEL 7 yet.
Comment 7 Yongcheng Yang 2015-04-29 09:17:14 UTC 
*** Bug 1206262 has been marked as a duplicate of this bug. ***
Comment 16 errata-xmlrpc 2015-11-19 05:32:17 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2205.html