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Informix - Problem description

Problem IT37803 Status: Closed

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

product:
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10
Problem 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
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).                                                  *
****************************************************************
Local Fix:
Solution
Workaround
****************************************************************
* 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).                                                  *
****************************************************************
Comment
Fixed in Informix Server 12.10.xC15 and 14.10.xC7.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
28.07.2021
26.08.2021
26.08.2021
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)