[LU-13881] lower than (<) and greater than (>) compare operator support for PCC rule

• Type: New Feature
• Resolution: Unresolved
• 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} roid=5 ropcc=1"
lctl pcc add /mnt/lustre /mnt/pcc -p "projid>\{100}&projid<\{110} roid=5 ropcc=1"
lctl pcc add /mnt/lustre /mnt/pcc -p "uid<\{1500}&uid>\{1000} rwid=5"

Issue Links

• is duplicated by: LU-13863 lower than (<) and greater than (>) operator support for PCC rule
• is duplicated by: LU-13864 lower than (<) and greater than (>) operator support for PCC rule
• is duplicated by: LU-13865 lower than (<) and greater than (>) operator support for PCC rule
• is duplicated by: LU-13866 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13867 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13868 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13869 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13870 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13871 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13872 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13873 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13875 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13876 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13877 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13878 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13879 lower than and greater than compare operator support for PCC rule
• is duplicated by: LU-13880 lower than and greater than compare operator support for PCC rule