Lpxus.Msb File Read Repeatedly Causing Performance Overhead
(Doc ID 1332495.1)
Last updated on APRIL 12, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.2 to 11.2.0.2 [Release 11.2]Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
In an Oracle Server 11.2.0.2 while running insert statements into a table having an xmltype column, the file
$ORACLE_HOME/xdk/mesg/lpxus.msb is opened for each insert even if there is no error raised by the statement.
This is observed running truss/strace against the process where the insert statement is running: the output files
shows several open command for the file $ORACLE_HOME/xdk/mesg/lpxus.msb, for example
kopen("/grdbms/64bit/app/oracle/product/1120/xdk/mesg/lpxus.msb", O_RDONLY) = 14.
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |