Troubleshooting

Oracle OPatch and “Archive not applied” error

Recently, I have installed an Oracle 11.2.0.4 RDBMS on a server, and I wanted to install the latest Patch Set Update (PSU) 11.2.0.4.4 from October 2014. During the execution, I fell on the error “Archive not applied” and the job(…)

Documentum upgrade project – ActiveX and D2-Client 3.1Sp1

This is another blog posting an our Documentum upgrade project. This time, the following issue occured: the ActiveX could not be installed using the D2-Client. We had to access the D2-Config url to have it installed. For a normal user,(…)

SQL Server 2014: sys.dm_exec_query_profiles, a new promising feature

Among the hidden features provided by SQL Server 2014 there is a very interesting dynamic management view named sys.dm_exec_query_profiles. This feature will help the database administrators and experienced developers to troubleshoot long running queries in real-time. I’m pretty sure(…)

Oracle TNS_ADMIN issues due to bad environment settings

Recently, I faced a TNS resolution problem at a customer. The reason was a bad environment setting: The customer called the service desk because of a DBLINK pointing to a bad database. The users were supposed to be redirected to a(…)

Kerberos SSO with Documentum D2 3.1 SP1

Last week, when I was working on how to setup the Kerberos SSO for D2 3.1 SP1, I faced some issues due to a documentation that doesn’t seem to be up to date… In fact, our version is D2 3.1(…)

Investigating Oracle lock issues with event 10704

By Franck Pachot . Did you ever encounter unexplained Oracle lock issues? They may be coming from unindexed foreign keys (which is worse in 11g). It’s not easy to monitor. Of course you can check Oracle locks from V$LOCKED_OBJECT, but(…)

Troubleshooting: ORA-29283 when oracle is member of a group with read/write privileges

Recently, I worked on an Oracle database migration for a customer and I faced a strange behavior when accessing a file stored on the file system of the Oracle database. The database has been migrated on a new server, and(…)

Oracle is hanging? Don’t forget hanganalyze and systemstate!

By Franck Pachot . sqlplus / as sysdba oradebug setmypid oradebug unlimit oradebug hanganalyze 3 oradebug dump ashdumpseconds 30 oradebug dump systemstate 266 oradebug tracefile_name Your Oracle database – production DB, of course – is hanging. All users are blocked.

Oracle Database 12c New Features: Uninstaller encapsulated into installation media

Among the Oracle 12c new features there is the addition of an uninstall tool encapsulated in the Oracle database binaries. There is no more the necessity to download the deinstallation tool for Oracle products (deinstall utility). In this blog I(…)

SQL Server 2012 SP1: Sixth Cumulative Update (CU6) available

Some days ago, Microsoft published the sixth Cumulative Update (CU6) for Microsoft SQL Server 2012 Service Pack one, two months after the fifth one. As usual, if this Cumulative Update solves an issue you are facing, install it(…)