MongoDB is unable to start due to lock file

While starting MongoDB server, You are facing that MongoDB is not getting up with a exception says -

Sun Jan 18 12:27:03.884 [initandlisten] exception in initAndListen: 10310 Unable to lock file: /data/db/mongod.lock. Is a mongod instance already running?, terminating
Sun Jan 18 12:27:03.884 dbexit:

Normally, we are facing this issue due to 1. improper MongoDB server shutdown or 2. someone else is started the mongo server. In the second case, we dont have any issue, we can connect to out db without issue.

"Current Informix Installation Detected" message during installation

I am sharing this IBM tip on Cognos here again as it helped my from a big trouble :-) , Thought for a worth sharing ......

Cause

1. A separate, standalone version of Informix is installed on the host (or leftovers are found in the Windows registry)

2. IBM Cognos Express has been installed and reinstalled and the Informix registry entries were not removed properly.

3. The Windows user "informix" is present on the host because Informix had been installed on the system in the past.

DataStage Warning : When checking operator: Operator of type "APT_TSortOperator": will partition despite the preserve-partitioning flag on the data set on input port 0

DataStage Warning : When checking operator: Operator of type "APT_TSortOperator": will partition despite the preserve-partitioning flag on the data set on input port 0.

These warnings are obtained when we are using some specific partitioning method in a stage in the job e.g hash/same etc but in the preceding stage , preserve portioning(also default) is set in the stage>advanced tab.

DataStage Scenario - Design2 - job3

DataStage Scenario Problem -->  DataStage Scenario - Problem2

Solution Design :


a) Job Design :

DataStage Scenario - Design2 - job2

DataStage Scenario Problem -->  DataStage Scenario - Problem2

Solution Design :


a) Job Design :
In job design, we are using Copy, Aggregator, Filter and Join stage to get the output.