+
+ def DBTree.cleanup_logs()
+ begin
+ debug "DBTree: checkpointing ..."
+ @@env.checkpoint
+ rescue Exception => e
+ debug "Failed: #{e.pretty_inspect}"
+ end
+ begin
+ debug "DBTree: flushing log ..."
+ @@env.log_flush
+ logs = @@env.log_archive(BDB::ARCH_ABS)
+ debug "DBTree: deleting archivable logs: #{logs.join(', ')}."
+ logs.each { |log|
+ File.delete(log)
+ }
+ rescue Exception => e
+ debug "Failed: #{e.pretty_inspect}"
+ end
+ end
+
+ def DBTree.stats()
+ begin
+ debug "General stats:"
+ debug @@env.stat
+ debug "Lock stats:"
+ debug @@env.lock_stat
+ debug "Log stats:"
+ debug @@env.log_stat
+ debug "Txn stats:"
+ debug @@env.txn_stat
+ rescue
+ debug "Couldn't dump stats"
+ end
+ end
+
+ def DBTree.cleanup_env()
+ begin
+ debug "DBTree: checking transactions ..."
+ has_active_txn = @@env.txn_stat["st_nactive"] > 0
+ if has_active_txn
+ warning "DBTree: not all transactions completed!"
+ end
+ DBTree.cleanup_logs
+ debug "DBTree: closing environment #{@@env}"
+ path = @@env.home
+ @@env.close
+ @@env = nil
+ if has_active_txn
+ debug "DBTree: keeping file because of incomplete transactions"
+ else
+ debug "DBTree: cleaning up environment in #{path}"
+ BDB::Env.remove("#{path}")
+ end
+ rescue Exception => e
+ error "failed to clean up environment: #{e.pretty_inspect}"
+ end
+ end
+