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Tom Liotta wrote:
<<SNIP>>
Be aware of another issue if this file is ever accessed from
within a QZDASOINIT job and the remote client uses XA APIs for
distributed transactions. The XA_end() API can (and often will)
cause QZDASOINIT to close _every_ file that is open in the job,
regardless of its involvement in any transaction and regardless
of sharing and activation groups.
<<SNIP>>
I seem to recall that fixes were made to prevent non-XA file opens
from being closed, even if only partially corrected, in releases prior
to v6r1; IIRC, changes to QDMRCLSE & QTNCLOSE. That is one of the last
problems I recall debugging before I left fix\development... it makes
already years ago, and I recall a developer had provided a test PTF that
tried to limit the impact prior to the attempt for a true fix aimed for
v6r1.
After searching a bit, I found what I was alluding to above. The PTF
SI22743 for SE24771 has more detail; implemented with an environment
variable:
ADDENVVAR ENVVAR( QIBM_TN_NTS_NATIVE_HOLD ) VALUE(1) LEVEL(as_rqd)
See that and details with caveats:
http://www-01.ibm.com/support/docview.wss?rs=0&q1=SI22743&uid=nas31a964faff674588086257188004cedc6
Regards, Chuck
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