hi http://activemq.apache.org/artemis/docs/2.1.0/persistence.html. This article tells me that even after syncing from the operating system there is no guarantee the data has actually made it to disk. we must disable disk cache to ensure data integrity . https://linux.die.net/man/2/fsync This tells me that fsync() transfers all modified in-core data of the file referred to by the file descriptor fd to the disk device so that all changed information can be retrieved even after the system crashed or was rebooted. This includes writing through or flushing a disk cache if present. there are two different views in above 2 articles.What's correct?
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