What does flushing to disk mean

The advanced preferences are marked "do not modify", which is a bit scary. I didn't see a way to search for a particular option, but I did find diskio. I set that to false, with no observable effect. I then exited BT, and restarted. When the download finished, the torrent went back to "flushing" status. After about 15 minutes, it finally went green and all the files I requested were available. You can post now and register later. If you have an account, sign in now to post with your account.

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Clear editor. Upload or insert images from URL. Existing user? Share More sharing options Followers 0. Reply to this topic Start new topic. Recommended Posts. Link to comment Share on other sites More sharing options Posted February 4, Posted February 10, Posted May 25, Using 3. Posted August 17, I think this happens more after I wake from hibernation--but not certain on this yet.

Thanks, Dan. Posted February 7, Archived This topic is now archived and is closed to further replies. This suggests a design which is very simple: rather than maintain as much as possible in-memory and flush it all out to the filesystem in a panic when we run out of space, we invert that.

All data is immediately written to a persistent log on the filesystem without necessarily flushing to disk. In effect this just means that it is transferred into the kernel's pagecache. What this means is that Kafka hands data off to the kernel with write syscalls -- at which point in time it's visible to other processes but may or may not actually be reflected on disk and survive a reboot -- but doesn't force the kernel to rush it to disk with fsync calls or similar as appropriate for the OS at hand.

If optimizing for throughput and not needing to guarantee that content is retrievable, this can be an appropriate decision: fsync and its kin can be expensive calls though by doing long contiguous writes that don't require seeking, kafka minimizes the expense of its disk IO.

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