Reading from or Writing to SecureFiles LOB in OCI Non-Blocking Mode Can Never Complete
(Doc ID 2631772.1)
Last updated on FEBRUARY 11, 2020
Applies to:Oracle Net Services - Version 126.96.36.199 and later
Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
When calling OCILobWrite() / OCILobWrite2() for writing to Securefiles LOB in Non-Blocking mode, the call can sometimes never complete and keep returning ORA-3123(OCI_STILL_EXECUTING).
If setting SEND_BUF_SIZE in sqlnet.ora to a lower value, such as 8192 than the default one (probably 262144 bytes on a generic Linux box), this symptom would tend to reproduce easier.
This symptom can occur when reading from Securefiles LOB by OCILobRead() / OCILobRead2() as well.
Changed LOB column type from BasicFiles LOB to SecureFiles LOB.
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