Apama, Terracotta, webMethods Upgrade: Avoiding Common Pitfalls
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The document outlines essential guidelines and best practices for upgrading WebMethods products, including necessary preparations, supported upgrade paths, and critical information from product readmes. It emphasizes performing upgrades in a controlled environment, installing fixes, and migrating database components carefully. Additionally, it provides a comprehensive list of resources available for users during the upgrade process.
Apama, Terracotta, webMethods Upgrade: Avoiding Common Pitfalls
- 1. APAMA, TERRACOTTA, WEBMETHODS UPGRADE AVOIDING COMMON PITFALLS Marianne Fuller Architect, R&D Solutions PM for SAG Installer and webMethods Installation/Upgrade/Database © 2015 Software AG. All rights reserved.
- 2. 2 | PITFALLS AROUND THE UPGRADE PROCEDURE (UPGRADE GUIDE) Identified through support calls and feedback from GCS and customers © 2015 Software AG. All rights reserved. WHERE are all sources of upgrade info? Where is deprecation and change info? WHAT are supported upgrade paths? WHEN install fixes? WHAT to do with my database (clone)? What do db migration scripts do? WHERE find workarounds for issues that arise? !
- 3. 3 | UPGRADE SEQUENCE (SIDE-BY-SIDE UPGRADE) © 2015 Software AG. All rights reserved. Gather doc needed to perform upgrade (release notes, readmes, guides) Install new products in new directory or on new machine using SAG Installer or Command Central Prepare old environment for upgrade (e.g., install fixes, stop document activity in IS) Shut down old products Migrate database components (will no longer be able to use them with old products) If installing on a new machine, create zip files of old installations to use as source Complete the upgrade for each product, usually by running a migration utility that migrates configurations, assets, and data from old installation to new Update SAG Infrastructure (for all products) Configure new products (see product doc) If installed on new machine, update host names in product configs and db tables Adjust products and assets based on product change info in readmes 1 2 3 4 5 6 7 8 9 10 11
- 4. 4 | MANY SOURCES OF UPGRADE INFORMATION © 2015 Software AG. All rights reserved. UPGRADE INFORMATION System requirements (OS, RDBMS, etc.) Release notes for new product features Supported upgrade paths matrix (details to follow) Product and fix readmes (details to follow) Upgrade guide Using SAG Installer (how to use the installer, not product specific) Installing SAG Products guide (how to install products) Using SAG Update Manager guide (how to install fixes)
- 5. 5 | SUPPORTED UPGRADE PATHS © 2015 Software AG. All rights reserved.
- 6. 6 | PRODUCT READMES CONTAIN CRUCIAL INFORMATION © 2015 Software AG. All rights reserved. PRODUCT READMES EXPLAIN: • Deprecation of, changes to, or removal of services, parms, props, APIs, other items, and replacements, if any • Changes to product behavior • New services, parms, props, APIs, other • Critical info, known and resolved issues USABILITY IMPROVEMENTS TO READMES: • Deprecation policy at top • Now cumulative (e.g., 9.9 release readmes contain information for 9.5 through 9.9) • Many are now combined logically (e.g., Rules Dev, Rules Engine, Rules Console readmes now single Business Rules readme) • Read product readmes before upgrading, to help with planning • Always read the readme for Software AG Infrastructure • Use readme after upgrade to modify product files and assets
- 7. 7 | UPGRADE GUIDE – CRITICAL REQUIREMENTS © 2015 Software AG. All rights reserved. NEW CHAPTER STARTING IN 9.8 RECOMMENDATIONS upgrade in a controlled test environment CRITICAL REQUIREMENTS read readmes, do steps in exact order, don’t start products prematurely TESTED SCENARIOS SAG tests migration across machines that have same hardware and OS REQUIREMENTS FOR SPECIFIC PRODUCTS e.g., how to update IS or MWS cluster NEW SECTION REQUIREMENTS AND RECOMMENDATIONS FOR DATABASES use clone, archive/purge !
- 8. 8 | INSTALL FIXES, AND READ FIX READMES FOR CHANGES © 2015 Software AG. All rights reserved. TYPES OF FIXES • Install latest product fixes on new products • Install latest product migration-utility fixes (usually these are combined with product fixes and are not separate) • Install latest migration framework fix (framework underlies all product migration utilities – fix for this is very rare) • *exception is SAG Infrastructure – that fix is installed after running the SAG Infrastructure migration utility After installing new products, install latest fixes Always read fix readmes closely - fixes can include changes to products Since upgrade might take days or weeks to complete, continue to check for and install latest fixes throughout upgrade Install latest product fixes on specified old products
- 9. 9 | PREPARE DATABASES © 2015 Software AG. All rights reserved. OLD AND NEW GUIDELINES • Upgrade RDBMS to version supported by new products (see System Requirements) • Reduce time to migrate by archiving and purging first (IS, Optimize, PE, and TN dbs) • When backing up DBs, must back up MwS installation directory at same time – if problems, will need both, in sync • Use cloned DBs when testing your upgrade • Recommendation now stated in upgrade guide • Follow instructions on grants and privileges
- 10. 10 | MIGRATE DATABASE COMPONENTS © 2015 Software AG. All rights reserved. DB migration scripts update existing DB schemas so they are compatible with new product release New product release might require changes to DB components, such as new tables, columns, keys, or indexes – details can be seen by opening the DB migration scripts in a text editor Scripts might modify existing DB components, or might create parallel DB components with the new structure and then insert, select, rename, and drop the tables, columns, keys, and indexes Scripts might increase DB size – will vary each release – upgrade partner will have best practices that will help with estimating this Install the latest fix on the DB migration scripts
- 11. 11 | FINAL UPGRADE TASKS © 2015 Software AG. All rights reserved. • Configure your new products (see product doc) 1 • If old and new products are on different machines, update host names: • In new product UIs, and config files (see product doc) • In connections between products • In database tables (greatly reduced for BPM in 9.9) 2 • Read the readmes and modify product files and assets to accommodate: • Deprecations, changes, or removals of services, parms, props, APIs, other • Changes to product behavior3
- 12. 12 | COMBINED WEB HELP OF ALL INSTALL AND UPGRADE DOC • Release notes for all supported paths • Readmes for all supported paths • System requirements • Supported upgrade paths matrix • Using SAG Installer • Installing SAG Products • Using SAG Update Manager • Upgrading SAG Products © 2015 Software AG. All rights reserved.
- 13. 13 | DEVELOPING UPGRADE AREA ON TECHCOMMUNITIES © 2015 Software AG. All rights reserved. Wiki Feedback on upgrade and upgrade documents? Pages that list common issues and workarounds? OPINIONS?
- 14. 14 | © 2015 Software AG. All rights reserved.