ORA-600 [KGL-heap-size-exceeded] Error Due to KGLH0 Leak During Execution of SQL Statements with Object-Type Columns (Doc ID 3058200.1)

Last updated on NOVEMBER 20, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 19.21.0.0.0 and later
Information in this document applies to any platform.

A user application SQL statement involving an object-type column encountered an ORA-600 [KGL-heap-size-exceeded] error.
The trace file reveals excessive allocation on the KGLH0 heap, which exceeded the maximum heap size defined by the _kgl_large_heap_warning_threshold parameter.
The summary section of the trace highlights that the largest allocation chunks are associated with "column defn. - ", "column definition", and "kkbclw: kqldac".

Newly migrated system.

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In this Document

Symptoms

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