[LU-9154] MDS Nodemap filset will be clear to empty after add new nodemap

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Environment: Centos 7.2.3.10.0-327.22.2.el7.x86_64; Lustre 2.8.59_25_g40e3986; ZFS 0.6.5.7
• Severity: 3
• Assignee: Emoly Liu
• Reporter: sebg-crd-pm (Inactive)

Description

I have one nodemapA and set fileset by "lctl set_param -P xxxx".
The nodemapA fileset in MDS will be clear to empty when do
"lctl nodemap_add_range --name nodemapA --range xxx" or "lctl nodemap_add nodemapB"
But the nodemapA fileset still exist in MGS. Does anyone have the same problem? Thanks.

Issue Links

• is duplicated by: LU-10703 All mds Nodemap filset will be cleared when do some nodemap operations (lustre 2.10.3)

Comments

[Andreas Dilger]

Close as a duplicate of LU-10703, since that has a patch.

[Emoly Liu]

This issue is a duplicate of LU-10703. I created a patch at https://review.whamcloud.com/31450 .

[sebg-crd-pm (Inactive)]

Hi mhaakddn ,

*Is there *any further update?

[Malcolm Haak - NCI (Inactive)]

I am seeing this issue in production with a Lustre 2.10.x system

ON MDS0: lctl set_param -P nodemap.test.fileset='/filesystem/test/path'

ON ADMIN NODE: cexec -p mds: 'lctl get_param nodemap.test.fileset'
mds0: }}{{nodemap.test.fileset=/filesystem/test/path
mds1: }}{{nodemap.test.fileset=/filesystem/test/path
mds2: }}{{nodemap.test.fileset=/filesystem/test/path
mds3: }}{{nodemap.test.fileset=/filesystem/test/path

ON ADMIN NODE: cexec -p oss: 'lctl get_param nodemap.test.fileset'
oss0: }}{{nodemap.test.fileset=/filesystem/test/path
oss1: }}{{nodemap.test.fileset=/filesystem/test/path
.............

ON MDS0: lctl set_param nodemap.active=1

ON ADMIN NODE: cexec -p mds: 'lctl get_param nodemap.test.fileset'
mds0: }}{{nodemap.test.fileset=
mds1: }}{{nodemap.test.fileset=
mds2: }}{{nodemap.test.fileset=
mds3: }}{{nodemap.test.fileset=

ON ADMIN NODE: cexec -p oss: 'lctl get_param nodemap.test.fileset'
oss0: }}{{nodemap.test.fileset=
oss1: }}{{nodemap.test.fileset=
.............

Hope this helps.

It looks like its quite broken.

Also I'm about to lodge another case because setting fileset twice on the same nodemap kills the MGS.

We found that because we tried to enable nodemaps, it cleared the fileset value and we tried setting it again.

[sebg-crd-pm (Inactive)]

Hi Emoly,
Is it ok to reproduce this issue by build-LU9154.sh/nodemap-LU915.sh ?

[sebg-crd-pm (Inactive)]

nodemap-LU9154.sh build-LU9154.sh
Hi Emoly,
I simplified the my build lustre steps and nodemap test scripts.
The issue can be reprodced in my site only execute these 2 scripts.

build-LU9154.sh
create 3 nodes lustre system(based on zfs) , mgs:mdsb1, mds:mdsb2, oss:ossb1
nodemap-LU915.sh
create nodemapA( set fileset) then create nodemapB =>mds nodemapA fileset missing

[Emoly Liu]

If possible, please post all the steps you did to reproduce this issue. Thanks.