IT37803: ASSERT FAILED IN RSS_RECV THREAD IN CLONESOURCERECVTHREAD WHEN PRIMARY/RSS NODES EXPERIENCING CONNECTIVITY ISSUES

APAR status

• Closed as program error.

Error description

• From the MSGPATH file we can see the servers trying to
  disconnect:
  
  02:19:13  The SMX connection between high availability servers
  was closed because the
   peer server was unresponsive for the timeout period (60 seconds
  times the
   number of retries).
  02:19:13  The SMX connection between high availability servers
  was closed because the
   peer server was unresponsive for the timeout period (60 seconds
  times the
   number of retries).
  02:19:13  The SMX connection between high availability servers
  was closed because the
   peer server was unresponsive for the timeout period (60 seconds
  times the
   number of retries).
  02:19:14  Error receiving a buffer from RSS rss_server01 -
  shutting down
  
  In the assertion fail file, you will likely only see a partial
  stack, which is due to the fact that an unexpected error message
  gets sprintf'd into a local variable that is not large enough to
  hold it.  This corrupts the stack frames and impacts the ability
  of the stack to unwind.  Here's the partial stack:
  
   ucontext: 0x0000000114205c40
    siginfo: 0x0000000114205f20
             si_signo: 10  si_code: 1   si_errno: 0 si_pid:
  1668573551 si_uid: 0
             si_addr: 0x6374696f6e2073cd si_value:
  0x0000000000000000  si_fd: 1668573551
  
  0x101021b40 oninit :: cloneSourceRecvThread + 0xb40
  sp=0x237e46b00(0x20696e2074686520, 0x73716c686f737473,
  0x2066696c652c2074, 0x68656e2073657474, 0x696e672053365f55,
  0x53455f52454d4f54)
  
  Following the above MSGPATH output, the server does seem to
  print an unexpected message into MSGPATH that seems like it's
  the output for an onconfig parameter description like this:
  
  02:19:14  Error receiving a buffer from RSS rss_server01 -
  shutting down
  02:19:14       Used with the REMOTE_SERVER_CFG configuration
  parameter, the
       S6_USE_REMOTE_SERVER_CFG configuration parameter specifies
  the
       file used to authenticate secure server connections in an
  untrusted
       network environment.
  
       The REMOTE_SERVER_CFG configuration parameter is used to
  specify
       the name of a file that lists the remote server hosts that
  are
       trusted by the computer on which the database server
  resides. If
       one or more of the servers specified in the
  REMOTE_SERVER_CFG
       file is configured using the connection security option
  (s=6)
       in the sqlhosts file, then setting S6_USE_REMOTE_SERVER_CFG
  to 1
       specifies that the servers in the REMOTE_SERVER_CFG are
  trusted
       connections. If S6_USE_REMOTE_SERVER_CFG is set to 0, then
  the
       $INFORMIXDIR/etc/host.equiv file is used to authenticate
  servers
       connecting through a secure port (as defined by setting s=6
  in the
       sqlhost file).
  
  02:19:14  invoke_alarm(): INFO: 1000 bytes in buffer but need
  1045
  02:19:14  RSS Server rss_server01 - state is now disconnected
  02:19:14  Assert Failed: No Exception Handler
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Informix Server prior to 12.10.xC15 and 14.10.xC7.  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Informix Server 12.10.xC15 or 14.10.xC7 (when     *
  * available).                                                  *
  ****************************************************************
  

Problem conclusion

• Fixed in Informix Server 12.10.xC15 and 14.10.xC7.
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels