Release Notes

Note

London, UK - March 30, 2019 Lenses v2.3 is now generally available

What’s New in 2.3

  • New Views functionality for table based engine
  • User Defined Aggregation Functions (UDAF) support
  • New powerful Date Math expressions
  • Continuous feedback on aggregated queries on the table based SQL engine.
  • Support for HAVING syntax in the table based SQL engine
  • Service metrics exposed via secured JMX connections are now supported
  • Services metrics exposed via Jolokia are now supported
  • Aggregations in topic live queries
  • Stream Reactor release with new Hive Source and Hive Sink (with Parquet and ORC file format)
  • Lenses uses Kafka 2.1 client libraries
  • Avro date time fields are returned in a human readable value when SET format.timestamp=true is used

Cloud support in 2.3

Note

Lenses supports all distributions of Apache Kafka newer than 0.11. We spent a lot of time with our partners to provide you with the best Cloud experience with this new release

Improvements

  • Performance improvements for clusters with a large number of topics
  • General performance improvements which lead to faster time loading the UI screens, better scaling on table based queries.
  • Lenses CLI support for secrets for managing Kafka Connect via Vault (by Hashicorp) or KeyVault (Azure)
  • SQL - In addition to YESTERDAY and TOMORROW functions, now you can also use NEXTWEEK, LASTWEEK, NEXTMONTH and LASTMONTH functions.
  • SQL - Added UNIX_TIMESTAMP function, to converts a given date into the timestamp as a long.
  • SQL - Added support for UUID types to Avro.
  • SQL - SHOW USERS, SHOW GROUPS, DESCRIBE GROUP group functions are now supported.
  • Better UX when topics have long names
  • SQL studio screen allows for a table refresh (avoids refreshing the entire page)
  • Use configuration to drive the SQL table engine default settings via lenses.sql.settings
  • Better way to identify STRING payload format for Kafka topics
  • Streaming SQL is using the replication.factor for the intermediary created topics
  • The SQL studio screen was taking a long time to display the Kafka topics on clusters with large number of topics

Fixes

  • SQL streaming cast exception on primitive types
  • Topic timestamp as human readable regression (_meta.timestamps > ‘2019-03-28 12:22:00’ is possible again)
  • Tabled based SQL gives a proper error when comparing invalid types
  • Creating topics via the SQL syntax and using decimal fields
  • Alerts settings can be changed only by users in groups having AlertsWrite permission
  • Insert data via the topics screen correctly errors on JSON storage format when the payload is not a valid JSON
  • Tabled based SQL returns empty arrays
  • Topology screen correctly resizes the details panel with browser window resize
  • Dashboard under-replicated partitions value reflects the correct information
  • Kafka Brokers service page list topics based on the user whitelist/blacklist settings.
  • JMX metrics is not reachable is not showed on the Zookeeper status page when the information is actually available
  • Adding consumer lag alerts forces the user to provide a group and topic as opposed to set them to undefined
  • Principal field validation prevents setting an empty value when setting an ACL
  • Updating a connector name the UI correctly changes to the newly updated connector page.
  • Connectors page does not hide the re-balance tooltip behind the application header
  • The connectors menu is highlighted correctly when the user is managing the connectors
  • Data policies filter render correctly
  • Audits page collapse button works correctly
  • Schema compatibility was not updated correctly if the Update button was clicked within 500ms
  • Topology can handle closed loop graphs
  • Table based SQL in obscure scenarios was not correctly handling functions in the WHERE clause
  • Managing the Kafka ACLs for TRANSACTIONAL_ID and IDEMPOTENT_WRITE resources
  • Creating a topic with message.timestamp.type was returning an error

2.3.1 Patch Release

Note

London, UK - April, 2019 Lenses v2.3.1 is now generally available

Fixes

  • High CPU usage when Lenses configuration does not include a Kafka Connect cluster (typical when you are not using Kafka Connect

to move data in and out of Kafka.)

2.3.2 Patch Release

Note

London, UK - April, 2019 Lenses v2.3.2 is now generally available

New

  • Data policies support for obfuscating numbers

Fixes

  • Showing the topic is compacted (regression)
  • Obfuscation for Avro enum fields was not applied
  • Inserting records via SQL errors when dealing with decimal fields
  • Closed loops SQL processors were causing the UI to not render

2.3.3 Patch Release

Note

London, UK - May, 2019 Lenses v2.3.3 is now generally available

Fixes

  • Allow decommission of all types of apps in the Topology
  • Table SQL should handle AVRO with array as payload object
  • Intellisense should suggest system tables
  • Streaming SQL UUID function should not return the same value
  • Topology does not process some entries with error too much recursion

2.3.4 Patch Release

Note

London, UK - June, 2019 Lenses v2.3.4 is now generally available

New

  • Introduce configuration option lenses.kafka.connect.request.timeout

Fixes

  • Allow a SQL Processor to produce with a null payload into an AVRO topic
  • Some potentially sensitive information may be leaked via the API
  • Fix horizontal line floating on overflow on editor

2.3.5 Patch Release

Note

London, UK - July, 2019 Lenses v2.3.5 is now generally available

New

  • The LDAP plugin now allows to use the Lenses LDAP user to read the newly logged in account groups. This is for those scenarios where an LDAP user can not read its own attributes due to security constraints (seen on OKTA LDAP settings). The patch introduces lenses.security.ldap.use.service.user.search=true|false. If it is set to true it uses lenses.security.ldap.user to read the groups.
  • SQL processors supports SET `output.schema.name`='abc' and SET `output.schema.namespace`='namespaceX' to allow to control the output Avro schema name and namespace

2.3.6 Patch Release

Note

London, UK - July, 2019 Lenses v2.3.6 is now generally available

This release is focused towards security, hardening the application in various areas.

New

  • Lenses now supports TLS so you don’t have to use a proxy for SSL termination. Find out more at Enabling TLS.

Improvements

  • Hardening of HTTP security headers
  • Improvements in the WebSocket API.
  • Store session token into cookie and set cookie secure flag.

Fixes

  • Respect lenses.kafka.connect.request.timeout for SQL Processors in Connect mode.