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Status Under review
Workspace IMS Database Manager
Categories Open Access DB
Created by Guest
Created on Aug 19, 2024

RELATED IDEAS

Correlate the PST processing the request with QUERY ODBM TYPE(THREAD) information in IMS to identify and kill the concerned long running threads and regions.

This is very useful to identify and kill the inefficient and long running IMS SQLs. At the moment we cannot correlate between the ODBM threads and processing region (DBT) on IMS side. There could be queries that could run longer and do not fill the buffer pool (1 meg limit) anytime soon. For example a simple SELECT * FROM a segment at 5th level in IMS DB hierarchy, could take longer to scan all the above 4 levels and the data it could retrieve is not reaching 1 meg limit in level 5 segment. In this case the ODBM thread might get timed out, but the DBT region is still processing GN calls.

We should be able to identify the long running region ID, user id, start time, active time etc to kill the thread and the region on IMS side. There should be enough information available on both ends.

Idea priority Medium

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