Database - RAC/Scalability (MOSC)

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Running RAC on Solaris? Then please note the following known issue!

in Database - RAC/Scalability (MOSC)

Applies to: 

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 12.1.0.2 [Release 10.2 to 12.1]
Oracle Solaris on SPARC (64-bit)
 

Description

ASM or DB processes may start spinning in a RAC environment after the instance has been running continuously for more than 248 days. This issue only affects Solaris platforms and is due to a faulty C compiler optimization.

The same problem can also affect non-RAC/ASM sessions (in particular if SQLNET.EXPIRE_TIME is used but this is not a requirement to hit the problem)

Occurrence

Only affects Solaris SPARC with Oracle RAC/non-RAC with ASM

Symptoms

ASM or DB processes may start spinning in a RAC environment after the instance has been running continuously for more than 248 days. This issue only affects Solaris platforms and is due to a faulty C compiler optimization. The same problem can also affect non RAC / ASM sessions (in particular if SQLNET.EXPIRE_TIME is used but this is not a requirement to hit the problem).

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