One of our EBS R12 instance was giving below kind of errors when users were trying to open the log and out files of Concurrent requests from EBS front end.
“The Applications File Server could not open the file /fs01/logs/appl/conc/log/l106163221.req for read”
Leave a CommentGoldenGate 12c version has many great features as compared to older versions. Below are some of the key new features of Oracle GoldenGate 12c that are worth mentioning
1 CommentWhen we face issues in GoldenGate extract or replicat setup, we follow some of the tried and tested initial troubleshooting steps mentioned below that helps us in pointing out the exact case of the issue.
To start with, GGSCI commands which are useful for Gathering evidences of issue:
Leave a CommentDuring one of our 11gR2 database restore activity we found below error message in the RMAN “duplicate database command”
channel aux4: ORA-19870: error while restoring backup piece /oraclone/ORCL/rman_clone/ORCL_F_20170605_c1s60alv_1_1 ORA-19504: failed to create file "+DATA3" ORA-15045: ASM file name '+DATA3' is not in reference form ORA-17502: ksfdcre:5 Failed to create file +DATA3 ORA-15081: failed to submit an I/O operation to a disk ORA-27091: unable to queue I/O ORA-27041: unable to open file SVR4 Error: 13: Permission denied1 Comment
GoldenGate Downstream deployment allows you to offload the source database extract load to intermediate or target server. The source database ships its redo logs to a downstream database, and Extract uses the logmining server at the downstream database to mine the redo logs. A downstream mining database can accept both archived logs and online redo logs from a source database
1 CommentBelow are some of the GoldenGate commands that we use frequently. We work on GoldenGate 12c version but almost all commands work in same manner…
2 CommentsThere are a number of factors that we need to keep in mind to be able to successfully tune a GoldenGate Setup. If you carefully design your system keeping in mind the end goal and apply some proven performance tuning measures you should be able to get real time replication from your GoldenGate setup.
3 CommentsAfter successfully installing Oracle GoldenGate 12c, it will create a lot of sub-directories structure which will be used by the different components of Oracle GoldenGate. There are so many directories that new user will get confused what to look where.The directories are the default locations for GoldenGate when creating objects and parameter files.
Leave a CommentQ 1: What is Oracle GoldenGate? A 1: Oracle GoldenGate 12c is a fancy name for a piece of software which enables the continuous, real-time…
2 CommentsUsually in OLTP environment like EBS Applications, tables are often get fragmented due to multiple DML activities that happens.Fragmented tables cause queries on those tables to slow down. It is very important to de-fragment this table and to reclaim the fragmented space from these objects.
For EBS we have also seen that usually gathered statistics, indexing and proper SQL tuning is plenty to improve and maintain acceptable performance but sometime it is required to reorg the table.
One primary cause of fragmentation is that when you run delete command on the tables it delete the rows but doesn’t frees up the memory and also do not changes the high water mark.
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