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Problem IT27471
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Status: Closed |
FAILED CONNECTIONS COULD LEAD TO INCORRECT VALUE FOR SHMEM->SH_RSNACTIVE WHICH COULD CAUSE PHYSICAL LOG OVERFLOW ASSERTIONS
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| product: |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 |
| Problem description: |
Under specific failed connections, it's possible that
shmem->sh_rsnactive will be decremented prior to it having been
incremented. If this happens often enough
shmem->sh_rsnactive can go to a negative value. This can lead
to physical log overflow because this value is used in the code
to determine if a non-blocking checkpoint needs to be switched
to a blocking checkpoint, to prevent the physical log from
filling.
The most likely cause of failed connections would be servers
that have SHMTOTAL set to a non-zero value, and the server has
allocated SHMTOTAL amount of memory. |
| Problem Summary: |
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| Local Fix: |
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| Solution |
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| Workaround |
not known / see Local fix |
| Comment |
This APAR is a duplicate of IT28628 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 21.12.2018
04.12.2019
04.12.2019 |
| Problem solved at the following versions (IBM BugInfos) |
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| Problem solved according to the fixlist(s) of the following version(s) |
