Tamr Documentation

Release Notes

Notes for Tamr v2021.011.0-2021.014.0

Tamr v2021.002.0 is a checkpoint release. When you upgrade from an earlier version of Tamr you must upgrade to each of the intervening checkpoint versions, including Tamr v2021.002 and v2020.016, before upgrading to a later version. The upgrade utility prevents you from upgrading past a checkpoint version. For example, the following upgrade paths are allowed: v2020.017 -> v2021.002, v2021.001 -> v2021.002. These upgrade paths are prevented: v2020.016 -> v2021.003, v2019.019 -> v2021.002.

For information about installing a new version, see Upgrading Tamr.

Release Notes - Version v2021.014.0

These release notes list what's new in this release, corrected issues, and known issues.

What's New

Verifier Role

This release includes a new Verifier role. This role is best suited for subject matter experts who will use Tamr only to provide input to your workflow and assign review tasks to other users. Verifiers cannot perform any actions that affect the underlying model.

This role allows subject matter experts to perform the following actions in mastering projects:

  • View unified data
  • Create and manage pair and cluster review assignments
  • Label pairs and clusters
  • Verify pairs and clusters

In categorization projects, Verifiers can assign and verify categories.

If users require permission to configure and run the underlying model, grant them Curator role access instead.

For more information about Verifier role permissions, see the Permissions Matrix by User Role.

New Features and Improvements

  • The system is set to read-only state when using the Project Movement API to import or export projects. This change ensures that the project and its data are protected during the operation. When the operation is complete, the system returns to read-write, and you can then perform actions and run jobs.
  • Additional configuration options are available the Databricks client library features.

Fixed Support Issues

This release corrects the following errors.

  • The backup process did not clear the tmp directory, causing the database connection to fail. Affects versions: v2021.010.0. Fix versions: v2021.014.0.
  • Due to an issue with the cluster metrics dataset, the “Estimate cluster metrics” option was unavailable and predict clusters jobs were cancelled. Affects versions: v2021.010.0. Fix versions: v2021.014.0, v2021.010.2.
  • When running unify-admin.sh validate, erroneous warnings were generated for missing optional files. Affects versions: v2021.010.0. Fix versions: v2021.014.0.
  • Upgrade failed due to inability to connect to dataset service. Affects versions: v2021.010.0. Fix versions: v2021.014.0, v2021.010.2.
  • When using relative Hausdorff distance, you cannot get to the geo shape overlay on the pairs page. Affects versions: v2019.017.0, v2020.024.1. Fix versions: v2021.014.0.
  • Datasets appear to have a smaller number of records than expected in deployments that use HBase. Affects versions: v2021.010.0. Fix versions: v2021.014.0, v2021.010.2.
  • Using geometry fields with PreGroupBy caused the generate pairs job to fail. Affects versions: v2021.009.0. Fix versions: v2021.014.0.
  • Project Import fails due to changes to Unified Attributes causing invalid transformations. Affects versions: v2021.010.1. Fix versions: v2021.014.0.
  • Match service should throw an error if the project does not exist. Affects versions: v2021.006.0. Fix versions: v2021.014.0.

Release Notes - Version v2021.013.0

Not released; merged into the v2021.014.0 release.

Release Notes - Version v2021.012.1

The patch version addresses the following issues:

  • For single-node deployments, the unify-data directory was not included in the backup which could potentially cause dataset exports to fail.
  • Restored mastering workflows failed due to the Tamr restore process failing to pull in a needed piece of information from the backup file.
  • Restore failed if the Low-Latency Match (LLM) service automatically polled for updates during restore. The LLM service no longer automatically polls when the system in read-only mode.

For every software release version that has a patch, Tamr strongly recommends that you upgrade to the most recent patch. To install the most recent patch, follow the upgrade instructions and supply the version number of the patch as the version for your upgrade. See Upgrading.

Release Notes - Version v2021.012.0

These release notes list what's new in this release, corrected issues, and known issues.

New Features and Improvements

The following new features are included in this release.

  • SUP-4688 Enable change order of columns for clusters in GR project.

Fixed Support Issues

This release corrects the following errors.

  • Cannot change order of columns for clusters in GR project. Affects versions: v2020.017.0. Fix versions: v2021.012.0.
  • SUP-5210 - Investigation to why dozens of hbase_configNNNN... folders in /tmp folder. Affects versions: v2021.002.0. Fix versions: v2021.012.0.
  • SUP-5230 Adding a return character at the end of the license key doesn't break Installation but breaks Upgrade. Affects versions: . Fix versions: v2021.012.0.
  • SUP-4688 Enable change order of columns for clusters in GR project. Affects versions: . Fix versions: v2021.012.0.

Release Notes - Version v2021.011.0

These release notes list what's new in this release, corrected issues, and known issues.

New Features and Improvements

The following new feature is included in this release.

In Tamr mastering projects, the pairs page now automatically shows pairs with Tamr suggestions that have a medium (M) confidence level, as well as suggestions with high (H) and low (L) confidence levels. This change is the result of a new, lower default value for the TAMR_PAIR_CONFIDENCE_THRESHOLD_MEDIUM configuration variable. For more information, see Configuring Tamr.

Fixed Support Issues

This release corrects the following errors.

  • Add ability to group on nulls/empties for specific aggregation fields in pregroupby. Affects versions: v2020.020.0. Fix versions: v2021.011.0.
  • Medium-confidence pairs should be possible. Affects versions: . Fix versions: v2021.011.0.

Known Issues

To view current known issues, please consult the Tamr knowledge base.

Updated about 9 hours ago


Release Notes


Notes for Tamr v2021.011.0-2021.014.0

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