chibenwa commented on code in PR #3197: URL: https://github.com/apache/james-project/pull/3197#discussion_r4080803768
########## docs/modules/servers/partials/configure/blobstore.adoc: ########## @@ -204,19 +204,24 @@ This bucket name is used as is: `objectstorage.bucketPrefix` is not applied to i |=== -==== Improve listing support for MinIO +[[_improve_listing_support_for_minio]] +==== Improve listing and filesystem performance with blob folder hierarchy -Due to blobs being stored in folder, adding `/` in blobs name emulates folder and avoids blobs to be all stored in a -same folder, thus improving listing. +Due to blobs being stored in a single flat namespace by default, adding `/` in blob names creates subfolders +and avoids millions of blobs from being stored in a single folder. This significantly improves listing on MinIO +and prevents directory entry bloat and file system performance degradation in `FileBlobStore`. Instead of `1_628_36825033-d835-4490-9f5a-eef120b1e85c` the following blob id will be used: `1/628/3/6/8/2/5033-d835-4490-9f5a-eef120b1e85c` -To enable blob hierarchy compatible with MinIO add in `jvm.properties`: +To enable blob folder hierarchy (on by default in Postgres App distribution), add in `jvm.properties`: ---- -james.s3.minio.compatibility.mode=true +james.blobstore.folder.hierarchy=true Review Comment: We need to keep both IMO ########## docs/modules/servers/partials/configure/blobstore.adoc: ########## @@ -204,19 +204,24 @@ This bucket name is used as is: `objectstorage.bucketPrefix` is not applied to i |=== -==== Improve listing support for MinIO +[[_improve_listing_support_for_minio]] +==== Improve listing and filesystem performance with blob folder hierarchy -Due to blobs being stored in folder, adding `/` in blobs name emulates folder and avoids blobs to be all stored in a -same folder, thus improving listing. +Due to blobs being stored in a single flat namespace by default, adding `/` in blob names creates subfolders +and avoids millions of blobs from being stored in a single folder. This significantly improves listing on MinIO +and prevents directory entry bloat and file system performance degradation in `FileBlobStore`. Instead of `1_628_36825033-d835-4490-9f5a-eef120b1e85c` the following blob id will be used: `1/628/3/6/8/2/5033-d835-4490-9f5a-eef120b1e85c` -To enable blob hierarchy compatible with MinIO add in `jvm.properties`: +To enable blob folder hierarchy (on by default in Postgres App distribution), add in `jvm.properties`: ---- -james.s3.minio.compatibility.mode=true +james.blobstore.folder.hierarchy=true Review Comment: We need to keep both IMO -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
