Hi Guys,

I must have considerable performances issues with h2 database.


Clearing step is running for more than 60 minutes. It’s using half of my 
CPU power.


This clearing step will execute ALTER statement as show below for 10 
tables. For executing these ALTER statements it takes almost 60mins.


======================================================================

[2017-06-09 00:23:16.722] Script execution started. 

[2017-06-09 00:23:16.731] Executing: SET SCHEMA s_dmask_001QOB1400000000002Q

[2017-06-09 00:23:16.731] Executing: ALTER TABLE Opportunity DROP COLUMN IF 
EXISTS FLIP_COL

[2017-06-09 00:23:17.917] Executing: ALTER TABLE Opportunity ADD COLUMN IF 
NOT EXISTS FLIP_COL VARCHAR(2) 




Below is the JDBC URL used

jdbc:h2:tcp://INHYW00000423/C:\Program 
Files\<<AgentName>>\apps\Data_Integration_Server\data\cmask\database\dmask;CACHE_SIZE=209715

Tried to modify the JDBC URL by increasing the cache size and below options 
as well , but did not find any difference in performance improvement.


*URL*: jdbc:h2:tcp://INHYW00000423/C:\Program Files 
\<<AgentName>>\apps\Data_Integration_Server\data\cmask\database\dmask;CACHE_SIZE=
2097152;FILE_LOCK=NO;TRACE_LEVEL_FILE=0;LOG=0;LOCK_MODE=0;UNDO_LOG=0


We are using h2 db of version "*h2-1.3.176.jar*".

Your assistance in this matter is greatly appreciated

*Regards*,
Prasad

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