Quote: use garbage collection to reclaim deleted files; mark deleted files by rename; on scan, delete from metadata; delete metadata for orphaned chunks

Quotation Skeleton

After a file is deleted, GFS does not … both the file and chunk levels. We find … the [deleted] file is just renamed to a … namespace, it removes any such hidden files if … When the hidden file is removed from the … a similar regular scan of the chunk namespace, … and erases the metadata for those chunks. In … it has, and the master replies with the … We can identify all references to chunks: they … the chunk replicas: they are Linux files under …   Google-1   Google-2

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Additional Titles

Quote: heartbeat messages sync chunkservers and master incrementally; deletes orphaned chunks

Related Topics

Topic: memory management by garbage collection (113 items)
Topic: implementing distributed systems and applications (41 items)