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Improve timestamp format in message and backup logs (ISO-8601)
Streaming messages to log ingestion systems, e.g. Elastic Stack, is a useful way of analysing logs and generating notifications when certain messages are seen. Displaying the messages in the right order when daylight saving switches occur is an is...
enhancements to sysprocedures table and dbschema utility
Currently, there does not appear to be anything in the sysprocedures table to identify which procedures are provided by Informix (system routines) vs those created by users (user routines). The mode column does not appear to address this particula...
More efficient unique indexes for monotonically increasing keys and constraints
Currently an index on a SERIAL and other monotonically increasing keys only add to the last node in the index causing the node to split into two half filled nodes. Eventually a sufficient number of nodes have so split that the index's search effic...
Different message when transaction time limit reached
When transaction duration limit is reached the following message occurs in the online log file 08:56:28 sid 11617 - email@example.com - pid 6811 terminated because session transaction duration (60 seconds) has exceeded limit. This session i...
In a system with more one NUMA node sometimes best to have all memory allocated on the first NUMA node for performance.
E.g. With 2 NUMA nodes with 300Gb each, pin the lowest number CPU VPs pinned to the first NUMA node and allocate all hugepages...
SQLTrace offers the DBA the tooling required to monitor a user session. However its difficult to monitor heavily used systems. For example one needs to have a buffer large enough to store 90 seconds of SQL queries (small lookup SQL's consume the b...
When running storage optimizations tasks (compress, repack, shrink, defragment) there is no way to monitor the progress of the task. If the table involved is a huge table, this task could run for several days and there is no way to know the task s...
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