arangodb/Documentation/DocuBlocks/walFlush.md

@brief flushes the currently open WAL logfile internal.wal.flush(waitForSync, waitForCollector)

Flushes the write-ahead log. By flushing the currently active write-ahead logfile, the data in it can be transferred to collection journals and datafiles. This is useful to ensure that all data for a collection is present in the collection journals and datafiles, for example, when dumping the data of a collection.

The waitForSync option determines whether or not the operation should block until the not-yet synchronized data in the write-ahead log was synchronized to disk.

The waitForCollector operation can be used to specify that the operation should block until the data in the flushed log has been collected by the write-ahead log garbage collector. Note that setting this option to true might block for a long time if there are long-running transactions and the write-ahead log garbage collector cannot finish garbage collection.

@EXAMPLES

@EXAMPLE_ARANGOSH_OUTPUT{WalFlush} require("internal").wal.flush(); @END_EXAMPLE_ARANGOSH_OUTPUT