[LU-13869] lower than and greater than compare operator support for PCC rule

• Type: New Feature
• Resolution: Duplicate
• Priority: Minor
• Assignee: Qian Yingjin
• Reporter: Qian Yingjin

Description

There are increasing requirements to add lower than/greater than compare operator for the PCC rules:

• File data that is larger than local disk capacity should not auto cache in PCC;
• A range of UID/GID/ProjID could be auto cached on PCC;

The following rule expressions are supported:

lctl pcc add /mnt/lustre /mnt/pcc -p "projid=\{100}&size>\{1M}&size<\{500G}"
lctl pcc add /mnt/lustre /mnt/pcc -p "projid>\{100}&projid<\{110}"
lctl pcc add /mnt/lustre /mnt/pcc -p "uid<\{1500}&uid>\{1000}"

Issue Links

• duplicates: LU-13881 lower than (<) and greater than (>) compare operator support for PCC rule