Requirement : You want to access HANA error logs and trace files.
Prerequisite : You need <SID>adm credentials to check logs at OS level and you need TRACE ADMIN or DATA ADMIN to view or delete log files in HANA Studio.
Solution :
At OS level these diagnosis files(trace and log files) are generated at following location of each node/hostname.
/usr/sap/<SID>/HDB<nn>/<hostname>/trace Or $DIR_INSTANCE/<hostname>/trace
You can also execute shell command alias cdtrace to access these files.
HANA log files at OS level
As you can see the trace files are stored separated per host,so to get access to the trace files of a multi-node system you have to check for each host individually.
One can get all trace file location info by executing following SQL in HANA :
SELECT * FROM M_DISKS WHERE USAGE_TYPE ='TRACE';
The best way to analyze these files is using HANA Studio - Administrative perspective - Diagnosis Files page tab.
HANA Studio diagnosis files:
This provides us an option to Merge Diagnosis Files - This feature is very helpful during troubleshooting as we can review multiple diagnosis files in one go.
Prerequisite : You need <SID>adm credentials to check logs at OS level and you need TRACE ADMIN or DATA ADMIN to view or delete log files in HANA Studio.
Solution :
At OS level these diagnosis files(trace and log files) are generated at following location of each node/hostname.
/usr/sap/<SID>/HDB<nn>/<hostname>/trace Or $DIR_INSTANCE/<hostname>/trace
You can also execute shell command alias cdtrace to access these files.
HANA log files at OS level
As you can see the trace files are stored separated per host,so to get access to the trace files of a multi-node system you have to check for each host individually.
One can get all trace file location info by executing following SQL in HANA :
SELECT * FROM M_DISKS WHERE USAGE_TYPE ='TRACE';
The best way to analyze these files is using HANA Studio - Administrative perspective - Diagnosis Files page tab.
HANA Studio diagnosis files:
This provides us an option to Merge Diagnosis Files - This feature is very helpful during troubleshooting as we can review multiple diagnosis files in one go.
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