Gluster metadata cache. Files are spread throughout the storage nodes, helping to eliminate I/O bottlenecks and high latency. While the learning curve is steep, it will pay off on the long run. This option makes sure the data/metadata is durable across abrupt shutdown of the brick. This group command enables caching of stat and xattr information of a file or directory. Metadata caching improves performance in almost all the workloads, except for use cases with most of the workload accessing a file sumultaneously from multiple clients. 5% of the pool size. This option does a lookup through all the sub-volumes, in case a lookup didn’t return any result from the hashed subvolume. Jul 13, 2021 · The metadata cache is added on the server side of glusterfs, and each server process only caches the directory items and metadata of the brick, without considering the consistency of multiple clients. I had the same issues with Gluster a while back. I highly recommend to look into Ceph, in your case (and mine) CephFS. Jun 20, 2025 · Integrate SSDs for metadata-only brick tiers to accelerate namespace operations. . Specifies the size of the stripe unit that will be read from or written to. You can allocate less than the maximum if space is a concern, but in this case you should allocate a minimum of 0. GlusterFS recommends creating the metadata device of the maximum supported size. Continuously monitor and adjust io-thread-count, cache-size, and other parameters based on workload Gluster Storage for Oracle Linux provides fast file access by eliminating the typical centralized metadata server. wcijx gglnce xhli wfowh bxpgwuo pbi ncpc qso nvi ycyq