ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired...
Problem:During importing a big dump file on a 19c database using data pump impdp, I got the following error repeatedly:Failing sql is: ALTER INDEX "WM"."IDX_FK_PO2LU_NATIONALITY" LOGGING 10-JUN-21...
View ArticleORA-600 [kcbgcur_1] After Creating an Index on a Global Temporary Table (GTT)...
Problem:On a 19.5 RAC DB, after the creation of an index on Global Temporary Table (GGT) started to notice that the following errors started to come intensively in the alertlog:ORA-00600: internal...
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September's DBA Bundle version is ready:https://www.dropbox.com/s/llj0n4qr4puyinp/DBA_BUNDLE6.tar?dl=0Once you open the link, Close "Save it later" window:Â Â Â Â Â Â Â Then, click on the Down Arrow at the...
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Major Update on Search Audit Data Script
 Many years back I've shared a script in the DBA Bundle to easily fetch audit data, recently I thought to add the capability of searching the transactions using LogMiner feature which is a license free...
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Get the SQL TEXT/SQLID of the Transaction Which Goldengate Extract is Lagging At
Problem:Recently I had a goldengate issue where the Extract process on the source server was lagging because of a big transaction which was already completed on the database, but goldengate was still...
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ora_lms Processes Leaking Memory on 19c RAC and Crash the Server Due To Lack...
Problem:After few weeks of creating a RAC DB on a 19c cluster I started to figure out that ora_lms processes on each RAC node is consuming high memory, and they keep consuming the memory without...
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Cluster Log Records Showing Different Time Than OS Time on 19c RAC
 Problem:On OS the time is showing 16:00 while the Clusterware and DB logs time are showing 20:00OS Time Cluster's Log Time: Analysis:The configured timezone in the cluster environment config file was...
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DBA Bundle 7
 The 7th release of DBA Bundle is now available:https://www.dropbox.com/s/le5pxctq0w6v49u/DBA_BUNDLE7.tar?dl=0Once you click on the link, first close this Window:  Then, click on the Down Arrow at the...
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ARG_MAX limitation cause Argument list too long Error
Error:While trying to send an HTML Email, I was getting below error due to the big Email body (which was embedded inside SENDMAILARGS variable: Â Argument list too longAnalysis:This is due to the...
View ArticleORA-41429: non-replayable side effect on failed connection | During a Session...
 Problem: On a 19c RAC environment, When one node crashed; a session connecting through a service that supports Application Continuity (AC) option failed to fail over to the other active RAC nodes and...
View ArticleAutomatic Block Corruption Recovery From the Standby DB | How to Make Sure...
 Since Oracle 11g a new feature was introduced to automatically recover the physical corrupted blocks online from the Standby DB immediately once the physical corruption occurs on the Primary without...
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ORA-1017 Invalid Username or Password on 19c while credentials are correct
 Problem:After upgrading a DB to 19c version, some legacy applications cannot connect to the DB, throwing the error "ORA-1017 Invalid Username or Password" although the login details are correct and...
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January 2022 DBA BUNDLE 7.1
 7.1 release of DBA Bundle is now available:https://www.dropbox.com/s/le5pxctq0w6v49u/DBA_BUNDLE7.tar?dl=0Once you click on the link, first close this Window:  Then, click on the Download button at the...
View ArticleGoldengate Process Crashed Due to ORA-00600:[kglLockGranted-illegal],...
 Problem:On a 19.5 RAC DB, Goldengate process crashed and went into ABENDED status due to the below internal error:ORA-00600: internal error code, arguments: [kglLockGranted-illegal], [0x15AE0A410],...
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ORA 600 [kkpo_rcinfo_defstg:objnotfound] when selecting from a table
Problem:On a 19.5 DB, When executing a simple select statement against a table, the following internal error pops up:Analysis:This bug is mainly associated with the table's histograms, it's commonly...
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Oracle RAC Deployment Options on The Cloud
 Before you read this article, please pay attention to Oracle's support policy (DocID 2688277.1) which clearly mentions in the last paragraph that; Oracle does not supportOracle RAC or Oracle RAC One...
View ArticleStep By Step Guide of How to Use SQL Plan Baseline
In this topic I'll discuss the technical steps of using SQL Plan Baseline (SPM) which its main rule is to pick the best execution plan for SQL statements. Before I dive into technical details, let me...
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An error occurred (RequestTimeTooSkewed) when calling the ListObjectsV2...
 Problem: When trying to access S3 bucket from a VM machine, I get this error: [oracle@pon01 backup]$ aws s3 ls s3://db-bucketAn error occurred (RequestTimeTooSkewed) when calling the ListObjectsV2...
View ArticleCleanup a Grid Infrastructure Installation on RAC Nodes
 In case you have a failed Grid Infrastructure setup or want to clean up RAC nodes from a 19c RAC setup, follow these steps:Grid Infrastructure DE-INSTALLATION steps:[Execute on All Nodes | As root...
View ArticleLogin to the database as user GGOWNER failed because of error Error while...
 Problem:When starting up an extract group on Source DB, it gets ABDENDING with this error: GGSCI> start extra Error in ggserr.log: ERROR  OGG-00303 Oracle GoldenGate Capture for Oracle,...
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