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Oleg Kunitsyn
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[ODM-12773] Fix release notes for release 1.59
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docs/home/release-notes.md

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# Release notes
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## Version 1.59
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!!! tip ""
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Helm chart version 1.59.2
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### Helm configuration changes
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The following ODM components were removed: `clickhouse`, `mysql-prepare` and `clickhouse-helper`.
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Removing the old `clickHouse` instance is completely safe, as its data was migrated to the cluster version of ClickHouse in the 1.58 release, and it should have been disabled after that.
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### Mysql migration
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Background migrations, running during the `core` container startup, may take up to tens of minutes. Use the Helm `--timeout 30m` option to adjust the timeout accordingly.
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If the ODM service is unable to start within the allocated time, increase the `failureThreshold` value for the core container.
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### Removal of Application Container Persistent Volume
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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.
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### Increasing memory limits for func-file
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A mechanism of attaching files to studies has been extended with new data sources. Attached files are stored in an
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S3 bucket, configured for `applications` container. The `func-file` container requires additional memory
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to facilitate efficient data transfer. This is particularly critical for the parallel upload of large files
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(several gigabytes in size) from the S3 source.
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The default configuration works fine for sequential file uploads. To enable parallel uploads,
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please increase the `limits` for memory, as well as the `cRTInitialReadBufferSizeInBytes` parameter. Additionally,
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it is highly recommended that for JVM services, the values for the `requests` and `limits` parameters be equal.
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Take a look at the `odm/examples/parallel-file-upload.yaml` file as an example of configuration,
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demonstrating the settings required for the parallel upload of five files, each 10GB in size.
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Please contact Genestack support if you need any further help with the configuration.
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You can also check Amazon S3 limits here: <https://docs.aws.amazon.com/AmazonS3/latest/userguide/qfacts.html>.
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### Amazon S3 bucket configuration
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The CORS policy is not necessary for the S3 bucket used by ODM. The policy could be removed from the bucket
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configuration.

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