[LU-13850] File in readwrite state and "No data available" error after file was added to cache on one node.

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Affects Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: Qian Yingjin
• Reporter: Vikentsi Lapa

Description

 

file was created on one node and on that node was created rule to add file to cache.

lctl pcc add /mnt/lustre /mnt/pccro --param "fname={*.doc} roid=7 ropcc=1"

 

pdsh -w trevis-59vm1[0,1,2] lfs pcc state /mnt/lustre/myfile.doc
trevis-59vm12: file: /mnt/lustre/myfile.doc, type: readwrite, PCC file: /0007/0000/0402/0000/0002/0000/0x200000402:0x7:0x0, user number: 0, flags: 0
trevis-59vm10: file: /mnt/lustre/myfile.doc, type: none
trevis-59vm11: file: /mnt/lustre/myfile.doc, type: none

on attempt to read file from other nodes I seeing this error.  and file type is marked as readwrite. Epected output is readonly.

pdsh -w trevis-59vm1[0,1,2] cat /mnt/lustre/myfile.doc
trevis-59vm11: cat: /mnt/lustre/myfile.doc: No data available
trevis-59vm12: filedata
trevis-59vm10: cat: /mnt/lustre/myfile.doc: No data available

Last time when I was checked this it works successfully file showed  status

 

# pdsh -w trevis-59vm1[0,1,2]  /usr/sbin/lctl pcc list /mnt/lustre  | dshbak
----------------
trevis-59vm10
----------------
pcc:
  -
    pccpath: /mnt/pccro
    hsmtool: posix
    rwid: 0
    roid: 7
    flags: 2e
    autocache: fname={*.doc}
----------------
trevis-59vm11
----------------
pcc:
  -
    pccpath: /mnt/pccro
    hsmtool: posix
    rwid: 0
    roid: 7
    flags: 2e
    autocache: fname={*.doc}
----------------
trevis-59vm12
----------------
pcc:
  -
    pccpath: /mnt/pccro
    hsmtool: posix
    rwid: 0
    roid: 7
    flags: 2e
    autocache: fname={*.doc}