[LU-12768] readcache_max_filesize in 2.12?

• Type: Bug
• Resolution: Done
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Affects Version/s: Lustre 2.12.2
• Environment: 2.12.2_116+3 patches, CentOS 7.6
• Severity: 3
• Assignee: Patrick Farrell (Inactive)
• Reporter: Stephane Thiell

Description

Hello,

We're playing with readcache_max_filesize to adjust OSS caching per object size, but while it seems to work on Oak (2.10.8), we can't find the tunable with 2.12. Did we miss something obvious? Thanks!

[root@fir-io1-s1 ~]# lctl get_param obdfilter.*.readcache_max_filesize
error: get_param: param_path 'obdfilter/*/readcache_max_filesize': No such file or directory
[root@fir-io1-s1 ~]# ls /sys/fs/lustre/obdfilter/fir-OST0000/
blocksize               client_cache_count    degraded   filestotal  grant_precreate  kbytesfree   lfsck_speed_limit  seqs_allocated   sync_journal      tgt_fmd_count    uuid
checksum_t10pi_enforce  client_cache_seconds  filesfree  fstype      kbytesavail      kbytestotal  precreate_batch    soft_sync_limit  sync_lock_cancel  tgt_fmd_seconds
[root@fir-io1-s1 ~]# cat /sys/fs/lustre/version 
2.12.2_119_g2d4809a

https://build.whamcloud.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#idm140482875762544
 
Thanks!
Stephane
 

Issue Links

• is related to: LUDOC-457 readcache max file size moved in 2.12.x and newer