Sunday, September 23, 2012

FINS CAP Buscomp Handler’s empty query problem

 

Currently I am working on a Siebel Financial Applications project using a lot of Business Rules Processor (BRPs) . The BRP way of working with Business Components is by using the various methods available under the  FINS CAP Buscomp Handler Business Service.

FINS CAP Buscomp Handler Business Service provides the following five methods:

  • Query
  • NextRecord
  • GetFieldValue
  • SetFieldValue
  • InsertRecord

The BS works without a Business Object context, ie while specifying the Business Component on which to operate, the Business Object name is not provided. It is the only BS I know in Siebel which operates directly on business components without taking the BO context. But as we realized, this is not always the best way of operating. As the amount of data grew, we found the BRPs going slower and performance degradation.

On spooling out the SQL when the BRPs were running, we found that null queries being run in the tables, without a search criteria. When the InsertRecord method of the BS is used to insert a record into say..Opportunity BC which is based on S_OPTY table, the BS was running this query first.

SELECT
      T1.CONFLICT_ID,
      T1.LAST_UPD,
      T1.CREATED,
      T1.LAST_UPD_BY,
      T1.CREATED_BY,
      T1.MODIFICATION_NUM,
      T1.ROW_ID,
      T14.USAGE,
      T8.TRDIN_EXPIRE_DAYS,
      T7.NAME,
      T1.PR_DEPT_OU_ID,
      T7.INTEGRATION_ID,
      T7.LOC,
      T7.OU_NUM,
      T10.NAME,
      T7.CURR_PRI_LST_ID,
      T7.PR_BL_ADDR_ID,
      T7.PR_BL_PER_ID,
      T7.PR_SHIP_ADDR_ID,
      T7.PR_SHIP_PER_ID,
      T1.CONSUMER_OPTY_FLG,
      T13.BL_ACCNT_ID,
      T13.BL_CON_ID,
      T1.CHANNEL_TYPE_CD,
      T1.CURCY_CD,
      T1.CUST_ACCNT_ID,
      T14.PROJ_STAT_CD,
      T1.CLOSED_FLG,
      T13.GROUP_TYPE_CD,
      T13.DEPARTURE_DT,
      T13.ARRIVAL_DT,
      T4.STATUS_INBND_CD,
      T7.ROW_ID,
      T1.PR_CON_ID,
      T1.NAME,
      T1.NEW_LOAN_FLG,
      T13.OPTY_MARKET_CD,
      T12.STAGE_STATUS_CD,
      T13.OPTY_SEGMENT_CD,
      T4.STATUS_CD,
      T1.APPL_OWNER_TYPE_CD,
      T1.PAR_OPTY_ID,
      T5.NAME,
      T9.PAR_POSTN_ID,
      T5.PROJ_PRPTY_ID,
      T1.ALIAS_NAME,
      T1.PR_OU_INDUST_ID,
      T1.PR_OU_ADDR_ID,
      T1.PR_REP_DNRM_FLG,
      T1.PR_REP_MANL_FLG,
      T1.PR_REP_SYS_FLG,
      T1.PR_CMPT_OU_ID,
      T6.COUNTRY,
      T9.PR_EMP_ID,
      T1.PR_OPTYORG_ID,
      T1.PR_OPTYPRD_ID,
      T1.BU_ID,
      T1.PR_PRTNR_ID,
      T1.PR_POSTN_ID,
      T1.SUM_REVN_AMT,
      T1.SUM_CLASS_CD,
      T1.SUM_EFFECTIVE_DT,
      T1.SUM_COMMIT_FLG,
      T1.SUM_COST_AMT,
      T1.SUM_DOWNSIDE_AMT,
      T1.SUM_REVN_ITEM_ID,
      T1.SUM_MARGIN_AMT,
      T1.SUM_TYPE_CD,
      T1.SUM_UPSIDE_AMT,
      T1.SUM_WIN_PROB,
      T11.LOGIN,
      T1.PR_SRC_ID,
      T6.STATE,
      T1.PR_TERR_ID,
      T1.PROG_NAME,
      T1.PROJ_PRPTY_ID,
      T13.REL_TYPE_CD,
      T1.SALES_METHOD_ID,
      T12.NAME,
      T1.STG_START_DT,
      T1.CURR_STG_ID,
      T12.STG_ORDER,
      T1.SECURE_FLG,
      T1.OPTY_CD,
      T1.PGROUP_PUBLIC_FLG,
      T1.BU_ID,
      T2.FCST_CLS_DT,
      T2.FCST_REVN_CURCY_CD,
      T16.LOGIN,
      T17.EFFECTIVE_DT,
      T17.COST_AMT,
      T17.DOWNSIDE_AMT,
      T17.MARGIN_AMT,
      T17.WIN_PROB,
      T17.REVN_AMT,
      T17.ACCNT_ID,
      T17.CLASS_CD,
      T17.REVN_AMT_CURCY_CD,
      T17.QTY,
      T17.CRDT_POSTN_ID,
      T17.TYPE_CD,
      T17.UPSIDE_AMT,
      T19.FST_NAME,
      T19.LAST_NAME,
      T20.SRC_CD,
      T13.ROW_ID,
      T13.PAR_ROW_ID,
      T13.MODIFICATION_NUM,
      T13.CREATED_BY,
      T13.LAST_UPD_BY,
      T13.CREATED,
      T13.LAST_UPD,
      T13.CONFLICT_ID,
      T13.PAR_ROW_ID,
      T14.ROW_ID,
      T14.PAR_ROW_ID,
      T14.MODIFICATION_NUM,
      T14.CREATED_BY,
      T14.LAST_UPD_BY,
      T14.CREATED,
      T14.LAST_UPD,
      T14.CONFLICT_ID,
      T14.PAR_ROW_ID,
      T2.ROW_ID,
      T3.ROW_ID,
      T17.ROW_ID,
      T18.ROW_ID,
      T20.ROW_ID
   FROM
       SIEBEL.S_OPTY T1
          INNER JOIN SIEBEL.S_OPTY_POSTN T2 ON T1.PR_POSTN_ID = T2.POSITION_ID AND T1.ROW_ID = T2.OPTY_ID
          INNER JOIN SIEBEL.S_PARTY T3 ON T2.POSITION_ID = T3.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_SYS_KEYMAP T4 ON T1.ROW_ID = T4.SIEBEL_SYS_KEY
          LEFT OUTER JOIN SIEBEL.S_OPTY T5 ON T1.PAR_OPTY_ID = T5.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_ADDR_PER T6 ON T1.PR_OU_ADDR_ID = T6.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_ORG_EXT T7 ON T1.PR_DEPT_OU_ID = T7.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_ORG_EXT_ATX T8 ON T1.BU_ID = T8.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_POSTN T9 ON T1.PR_POSTN_ID = T9.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_PRI_LST T10 ON T7.CURR_PRI_LST_ID = T10.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_USER T11 ON T9.PR_EMP_ID = T11.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_STG T12 ON T1.CURR_STG_ID = T12.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_OPTY_TNTX T13 ON T1.ROW_ID = T13.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_OPTY_DSGN_REG T14 ON T1.ROW_ID = T14.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_POSTN T15 ON T2.POSITION_ID = T15.PAR_ROW_ID
         LEFT OUTER JOIN SIEBEL.S_USER T16 ON T15.PR_EMP_ID = T16.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_REVN T17 ON T1.SUM_REVN_ITEM_ID = T17.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_PARTY T18 ON T1.PR_CON_ID = T18.ROW_ID
          LEFT OUTER JOIN SIEBEL.S_CONTACT T19 ON T1.PR_CON_ID = T19.PAR_ROW_ID
          LEFT OUTER JOIN SIEBEL.S_SRC T20 ON T1.PR_SRC_ID = T20.ROW_ID
   ORDER BY
      T17.EFFECTIVE_DT DESC.

If you analyze the last part of the SQL, there is no “WHERE” clause with a search specification , nor are there and bind variables. This query will simply return all records present in the Opportunity Business Component. That’s right, its an empty query on the S_OPTY table and all other tables left joined. And this is fired every time the InsertRecord method is fired. I think Siebel tries to see if the record going to be inserted is not a duplicate of an existing record in the system, and it does this by first firing and empty query and then comparing the result with what we are trying to insert. But as the number of records in the tables grow, the performance degrades. And this is a vanilla/OOTB business service.

Anyway, we had to do away with “FINS CAP Buscomp Handler:InsertRecord” and replaced it with another vanilla BS: “Inbound E-mail Database Operations” Business Service and its “InsertRecord” method. The syntax is not exactly same, some modifications are required. But after using this BS, we found a tremendous improvement in speed in the system.

Saturday, September 8, 2012

Reddit's database has only two tables

Steve Huffman talks about Reddit’s approach to data storage in a High Scalability post from 2010. I was surprised to learn that they only have two tables in their database.
Lesson: Don’t worry about the schema.
[Reddit] used to spend a lot of time worrying about the database, keeping everthing nice and normalized. You shouldn’t have to worry about the database. Schema updates are very slow when you get bigger. Adding a column to 10 million rows takes locks and doesn’t work. They used replication for backup and for scaling. Schema updates and maintaining replication is a pain. They would have to restart replication and could go a day without backups. Deployments are a pain because you have to orchestrate how new software and new database upgrades happen together.
Instead, they keep a Thing Table and a Data Table. Everything in Reddit is a Thing: users, links, comments, subreddits, awards, etc. Things keep common attribute like up/down votes, a type, and creation date. The Data table has three columns: thing id, key, value. There’s a row for every attribute. There’s a row for title, url, author, spam votes, etc. When they add new features they didn’t have to worry about the database anymore. They didn’t have to add new tables for new things or worry about upgrades. Easier for development, deployment, maintenance.
The price is you can’t use cool relational features. There are no joins in the database and you must manually enforce consistency. No joins means it’s really easy to distribute data to different machines. You don’t have to worry about foreign keys are doing joins or how to split the data up. Worked out really well. Worries of using a relational database are a thing of the past.
This fits with a piece I read the other day about how MongoDB has high adoption for small projects because it lets you just start storing things, without worrying about what the schema or indexes need to be. Reddit’s approach lets them easily add more data to existing objects, without the pain of schema updates or database pivots.
.

Saturday, September 1, 2012

What is sfsutl, How Should SFSUTL.EXE be Used?


sfsutl.exe can be found in Siebsrvr\bin directory, in siebel versions 6 and older SFSUTL.EXE used to delte the orphan and old versions of attachments.

in Siebel 7 and Siebel 8 a new utility called SFSCLEANUP has been introduced.
sfsutl can be used to verify the integrity between database records and files in the Siebel File System, or to remove files from the Siebel File System that no longer have a corresponding database record.
SFSUTL works in two modes:

1. verify or report

2.move or delete.
1.Verify or Report Mode:
To use the utility in verify or report mode, enter a command string similar to the following:
sfsutl /u sadmin /p sadmin /c siebsrvr_siebel /d dbo /f e:\siebfile /x c:\sfsutl_output.txt
The output from this command could be easily imported into Microsoft utilities like Excel or Access for sorting and manipulation. See below for sample output from this command. There are three key statuses to note:
•Keeping - The file corresponds to a database record.
•Discard - The file does not correspond to a database record, and would be moved or deleted if sfsutl were run in that mode.
•Missing - An expected file does not exist for a database record.
2.Move or Delete Mode:
To use the utility in move or delete mode:
1.Create a separate or new folder (this will be used by sfsutl when moving the discarded files). It is recommended that users do not create this new folder as a subfolder of the existing Siebel File System. For example, if the Siebel File System is in e:\siebfile then create the new folder as e:\siebfilediscards.
2.Enter a command string similar to the following:
sfsutl /u sadmin /p sadmin /c siebsrvr_siebel /d dbo /f e:\siebfile /m e:\siebfilediscards /x c:\sfsutl_output.txt

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