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IJ34689: WHEN USING THE REMOTE LOG FILE MONITORING FUNCTION (SSHHOSTLIST), THE AGENT TERMINATES SOON AFTER STARTUP

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APAR status

  • Closed as Permanent restriction.

Error description

  • When using the Log File Agent feature to monitor logs on a
    remote system (using ssh), the agent terminates in
    libicclib085.so.  The feature to monitor remote logs is used
    when the *conf file includes the SshHostList keyword.
    
    Environment: Can occur across Log File Agent versions.
    The issue occurs when GSKit is upgraded to version 8.0.55.17 and
    above.  The GSKit version is upgraded to 8.0.55.17 when agent
    shared components are upgraded to 6.30 FP7 SP6 (and above).  For
    example, if there is an OS Agent on the same system and that
    agent is upgraded to 6.30 FP7 SP6, then the GSKit for all agents
    in that $CANDLEHOME will share the upgraded GSKit version.
    
    Related Files and Output: When the core file is analyzed, the
    following stack trace is observed:
    
    
    Stack trace of thread 165000:
    #0  0x0000145f657fbbff BN_num_bits (libicclib085.so)
    #1  0x0000145f658e2df4 RSA_size (libicclib085.so)
    #2  0x0000145f658ec5d1 int_rsa_verify (libicclib085.so)
    #3  0x0000145f658ecae8 RSA_verify (libicclib085.so)
    #4  0x0000145f658e9a7d pkey_rsa_verify (libicclib085.so)
    #5  0x0000145f658d457b EVP_PKEY_verify (libicclib085.so)
    #6  0x0000145f658c9f16 EVP_VerifyFinal (libicclib085.so)
    #7  0x0000145f20f622be _libssh2_rsa_sha1_verify
    (libklossh-gsk8.so)
    #8  0x0000145f20f56a3a hostkey_method_ssh_rsa_sig_verify
    (libklossh-gsk8.so)
    #9  0x0000145f20f58a98
    kex_method_diffie_hellman_groupGP_sha1_key_exchange (libklossh->
    
    #10 0x0000145f20f5abc3
    kex_method_diffie_hellman_group14_sha1_key_exchange (libklossh->
    
    #11 0x0000145f20f5eb66 libssh2_kex_exchange (libklossh-gsk8.so)
    #12 0x0000145f20f7660d session_startup (libklossh-gsk8.so)
    #13 0x0000145f20f77091 libssh2_session_startup
    (libklossh-gsk8.so)
    #14 0x0000145f21193b61 libssh2_session_startup (libkloudp.so)
    #15 0x0000145f2117f9b9 ssh_session_connect (libkloudp.so)
    #16 0x0000145f2117db13 ssh_connection_check (libkloudp.so)
    #17 0x0000145f2112f8df VerifyInitializeMonitorFileSpec
    (libkloudp.so)
    #18 0x0000145f211335ea KUMP_FileServer (libkloudp.so)
    #19 0x0000145f2116b982 Task (libkloudp.so)
    #20 0x0000145f6bba914a start_thread (libpthread.so.0)
    #21 0x0000145f6a974dc3 __clone (libc.so.6)
    

Local fix

  • When using the remote log file monitoring of the Tivoli Log
    File Agent, install the agent on a system where 6.30 FP7 SP6 (or
    later) has not been installed.
    

Problem summary

  • There is a comability issue between the Agent Builder agent and
    the newer levels of GSKit (after 8.0.55.17).
    

Problem conclusion

  • This is being closed as a product limitation.  The agent will
    need to be installed locally on the system where the logs are
    to be monitored.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ34689

  • Reported component name

    ITM LOG FILE AG

  • Reported component ID

    5724C04LF

  • Reported release

    630

  • Status

    CLOSED PRS

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-08-24

  • Closed date

    2022-08-23

  • Last modified date

    2022-08-23

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

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

Fix information

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSTFXA","label":"Tivoli Monitoring"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"630","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
08 March 2023