Enterprise Manager

AWR Warehouse and Data Guard (Interlude)

Note, in preparing next entry, I reviewed the results from previous entries and found that although extracts were being transferred successfully they had all failed to load; I should have noticed they had status 4 (IMPORT_FAILED), in the load metadata table. Reviewing dbms_scheduler_job_run_details of the load task revealed the following error: “move error: ORA-20105: Unable …

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TNS-12599: TNS:cryptographic checksum mismatch

Checking the alert log of some of one of the instances we have recently upgraded to 12.2 I noticed the following error message occurring frequently: NI cryptographic checksum mismatch error: 12599. VERSION INFORMATION: TNS for Linux: Version 12.2.0.1.0 – Production Oracle Bequeath NT Protocol Adapter for Linux: Version 12.2.0.1.0 – Production TCP/IP NT Protocol Adapter …

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