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IZ77209: ACCESSING AUTOMOUNTED DIR IN -HOSTS MAP HANGS FOR LARGE EXPORTS APPLIES TO AIX 6100-06

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APAR status

  • Closed as program error.

Error description

  • Accessing an automounted directory with -hosts map where
the
NFS server has more than 50 exports can cause the command
(ls, cd etc)
to hang. This happens only with -hosts map and not with
direct or indirect
maps.

Local fix

  • Limit the number of exported directories on the NFS
server to be less
than 50 (This number also depends on the length of the
pathnames, so longer
pathnames means even fewer directories that can be
exported)

Problem summary

  • Accessing an automounted directory with -hosts map where the
NFS server has too many exports(approximately around 50
exports) can cause the command (ls, cd etc) to hang. This
happens only with -hosts map and not with direct or indirect
maps.

Problem conclusion

  • Modified autofs code to communicate the server export details
from automount daemon to kernel, in smaller chunks and thus
avoiding the hang.

Temporary fix

  • 



Comments


    

  • 5300-09 - use AIX APAR IZ70759
5300-10 - use AIX APAR IZ68238
5300-11 - use AIX APAR IZ82419
5300-12 - use AIX APAR IZ81857
6100-02 - use AIX APAR IZ79500
6100-03 - use AIX APAR IZ71308
6100-04 - use AIX APAR IZ79029
6100-05 - use AIX APAR IZ78688
6100-06 - use AIX APAR IZ77209
6100-06 - use AIX APAR IZ77456
6100-06 - use AIX APAR IZ77209
7100-00 - use AIX APAR IZ80284

    



APAR Information




    

  • APAR number
    IZ77209
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2010-06-08
    • 

  • Closed date
    2010-06-08
    • 

  • Last modified date
    2013-03-28
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    
IZ68238
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U835918
       UP11/05/10  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            28 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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