[lustre-discuss] lctl set_param obdfilter.*.readcache_max_filesize=2M fails

[Pinkesh Valdria]

Thanks to Shaun and Chris.   

 

Sorry I forgot to paste,    I tried osd first,  it didn’t work,  so I tried ost,  incase ost was the new name. 

 

[root at lustre-oss-server-nic0-1 ~]#  lctl set_param osd-*.readcache_max_filesize=2M

error: set_param: param_path 'osd-*/readcache_max_filesize': No such file or directory

[root at lustre-oss-server-nic0-1 ~]#  lctl set_param ost-*.readcache_max_filesize=2M

error: set_param: param_path 'ost-*/readcache_max_filesize': No such file or directory

[root at lustre-oss-server-nic0-1 ~]#

 

 

So I have this, based on this,  

 

[root at lustre-oss-server-nic0-1 ~]# lctl list_param -R * | grep readcache_max_filesize

osd-ldiskfs.lfsbv-OST0000.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0001.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0002.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0003.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0004.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0005.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0006.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0007.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0008.readcache_max_filesize

osd-ldiskfs.lfsbv-OST0009.readcache_max_filesize

[root at lustre-oss-server-nic0-1 ~]#

 

So I did trial and error and found I need to do this:  osd-ldiskfs.* instead of osd.*

 

[root at lustre-oss-server-nic0-1 ~] lctl set_param osd-ldiskfs.*.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0000.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0001.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0002.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0003.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0004.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0005.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0006.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0007.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0008.readcache_max_filesize=2M

osd-ldiskfs.lfsbv-OST0009.readcache_max_filesize=2M

[root at lustre-oss-server-nic0-1 ~]#

 

 

 

From: Chris Horn <hornc at cray.com>
Date: Thursday, August 8, 2019 at 11:11 AM
To: Pinkesh Valdria <pinkesh.valdria at oracle.com>, Shaun Tancheff <stancheff at cray.com>, "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: Re: [lustre-discuss] lctl set_param obdfilter.*.readcache_max_filesize=2M fails

 

You have a typo in the command you ran. Shaun wrote
> lctl set_param osd-*.readcache_max_filesize=2M

 

but you have:
> lctl set_param ost-*.readcache_max_filesize=2M

ost->osd

 

> Is  there commands to see all the currently parameters using some get command 

 

lctl list_param -R *

 

# lctl list_param -R * | grep readcache_max_filesize

osd-ldiskfs.snx11922-OST0002.readcache_max_filesize

osd-ldiskfs.snx11922-OST0003.readcache_max_filesize

#

 

Chris Horn

 

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Pinkesh Valdria <pinkesh.valdria at oracle.com>
Date: Thursday, August 8, 2019 at 11:57 AM
To: Shaun Tancheff <stancheff at cray.com>, "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: Re: [lustre-discuss] lctl set_param obdfilter.*.readcache_max_filesize=2M fails

 

That also fails 

 

[root at lustre-oss-server-nic0-1 ~]#  lctl set_param ost-*.readcache_max_filesize=2M

error: set_param: param_path 'ost-*/readcache_max_filesize': No such file or directory

[root at lustre-oss-server-nic0-1 ~]#

 

Is  there commands to see all the currently parameters using some get command 

 

 

From: Shaun Tancheff <stancheff at cray.com>
Date: Thursday, August 8, 2019 at 9:50 AM
To: Pinkesh Valdria <pinkesh.valdria at oracle.com>, "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: Re: [lustre-discuss] lctl set_param obdfilter.*.readcache_max_filesize=2M fails

 

I think the parameter has changed:

'obdfilter.*.readcache_max_filesize’ => 'osd-*.readcache_max_filesize'

 

So try:

 lctl set_param osd-*.readcache_max_filesize=2M

 

 

 

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Pinkesh Valdria <pinkesh.valdria at oracle.com>
Date: Thursday, August 8, 2019 at 11:43 AM
To: "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] lctl set_param obdfilter.*.readcache_max_filesize=2M fails

 


 

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