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meaning of VLSN and others

782420Aug 1 2010 — edited Aug 2 2010
1. I know LSN is log sequential number for each record. What is VLSN?

2. check pointer generates a snapshot of database which includes all latest records, and then the cleaner can clean deletable log files. My question is if the check pointer applies an incremental mechanism so that snapshot 1 (immediate previous one) + snapshot 2 (current one) = the whole database? It seems to be this case due to the DirtyMap data structure (something like that) .

Thanks.

Jiangfan
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Locked on Aug 30 2010
Added on Aug 1 2010
#berkeley-db-java-edition
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