Merge pull request #80 from genestack/feature/ODM-12031_2-implementat…

…ions-plenty-resources

ODM-12031: disclaimer for huge func-file memory limits

docs/home/release-notes/v1.50-v1.59.md

@@ -13,7 +13,23 @@ If the ODM service is unable to start within the allocated time, increase the `f
 
 ### Removal of Application Container Persistent Volume
 
-We have removed the Persistent Volume Claim (PVC) and the necessary configuration for the application's container. This removal is safe, so there's no need for concern.
+We have removed the Persistent Volume Claim (PVC) and the necessary configuration for the `applications` container. This removal is safe, so there's no need for concern.
+
+### Increasing memory limits for func-file
+
+A mechanism of attaching files to studies has been extended with new data sources. Attached files are stored in an
+S3 bucket, configured for `applications` container. The `func-file` container requires additional memory
+to facilitate efficient data transfer. This is particularly critical for the parallel upload of large files
+(several gigabytes in size) from the S3 source.
+
+The default configuration works fine for sequential file uploads. To enable parallel uploads,
+please increase the `limits` for memory, as well as the `cRTInitialReadBufferSizeInBytes` parameter. Additionally,
+it is highly recommended that for JVM services, the values for the `requests` and `limits` parameters be equal.
+Take a look at the `odm/examples/parallel-file-upload.yaml` file as an example of configuration,
+demonstrating the settings required for the parallel upload of five files, each 10GB in size.
+Please contact Genestack support if you need any further help with the configuration.
+
+You can also check Amazon S3 limits here: <https://docs.aws.amazon.com/AmazonS3/latest/userguide/qfacts.html>.
 
 ## Version 1.58