If a NoSQL Storage Node is not running for a while, after startup it may complaining:
2016-11-1713:22:34.934UTC WARNING[admin1]JE:Exiting inner Replica loop with exception com.sleepycat.je.rep.RollbackProhibitedException:(JE6.4.15)1(1):/opt/ece/data/nosql/storage2/kvroot/ECEStore/sn1/admin1/env Node1(1):/opt/ece/data/nosql/storage2/kvroot/ECEStore/sn1/admin1/env must rollback41commits tothe earliest point indicated by transaction id=-392time=2016-11-1714:18:53.969vlsn=884lsn=0x0/0x6e4be1inorder torejoin the replication group,but the transaction rollback limit of10prohibits this.Either increase the propertyje.rep.txnRollbackLimit toavalue larger than10topermit automatic rollback,ormanually remove the problematic transactions.Todoamanual removal,truncate the log tofile00000000.jdb,offset0x6e4944,vlsn881using the directions incom.sleepycat.je.util.DbTruncateLog. ROLLBACK_PROHIBITED:Node would like toroll back past committed transactions,but would exceed the limit specified by je.rep.txnRollbackLimit.Manual intervention required.Environment isinvalid andmust be closed.
Website update & engine refreshment (announced in Changes, changes post) took me really a lot of time (it might be 12-18 months or so). For whole this time I was scratching my head how to migrate old Drupal 6 with plenty of dirty configs to the latest & greatest version.
I’ve had plenty of attempts for migration, including Drush, Drupal migration plugin, even manual (!!) – in each of them, the result was not really satisfying:
Content and formatting was not migrating correctly
Multi-language pages made the migration tools totally confused
Time was flying and I couldn’t run away from buggy and insecure D6.
As prices for the ground nearby my office are skyrocketing (mainly because of Underground station built in the neighborhood), the landlord decided to demolish and old warehouse. Most likely another offices sky-scrapper will be placed there.
Jarek (Jarosław) Hartman is a Solution Architect who joined Oracle in July 2010.
He is a member of the EMEA Architects Community within the Communications Global Business Unit (CGBU).
Jarek has more than [insert_php] echo date(“Y”)-2002; [/insert_php] years of experience in the Telecommunication industry, with [insert_php] echo date(“Y”)-2008; [/insert_php] years of technical management experience in the implementation of Intelligent Networking and Online Charging systems.
Over the years, he worked with a large variety of clients in different countries, and successfully delivered projects across the region. During this process Jarek acquired a full life cycle experience in overall technical project scoping, planning, requirements gathering, solution architecture design, staging, configuration, testing, performance testing, tuning, deployment, network integration, migration and go-live of software for the Telecommunication industry.
Key strengths include: analytical and troubleshooting skills; strong performance both individually as in a team; self-motivated and disciplined; open and eager to learn about new technologies, paradigms and developments and open for travel.
Jarek holds a Masters degree in Electronics and Telecommunications from the Technical University of Wroclaw, Poland (2002), and speaks Polish and English.