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Release notes

Last Updated: Aug 15, 2018

Following are the release notes of TSDB itself. For the version history and the download links of TSDB SDK, please see SDK Version History.

V2.2.8       August 10, 2018

New features

  • Supports data querying by a single timestamp
  • Supports data writing, reading and downsampling by milliseconds
  • Added two downsampling units: month(n) and year(y)
  • Added two fill policy operators: near and after

Issues Fixed

  • Fixed the issue of data error in console timeline monitoring and disk monitoring
  • Fixed the issue of timeline meta data still being queryable after timelines are cleaned up
  • Fixed the issue that data reading type is incompatible with data writing type
  • Fixed the issue of data error in writing rate monitoring and disk monitoring

2.2.7       July 6, 2018

New features

  • Published a new edition of SDK
  • Supports writing, querying and analysing MultiValue data

2.2.4       May 24, 2018

New features

  • Supports writing string and boolean data
  • Provides last interface, the latest cycle of data points in a timeline approachable

Issues fixed

  • Fixed the issue of response error when deleting timelines in certain conditions

V2.2.3       April 10, 2018

New features

  • Added operation monitor
  • Linked to AliClou-supported StreamCompute
  • Supports data visualization through Grafana
  • Supports billing policy changed from Pay-as-you-go into subscription
  • Supports subpage function of data query
  • Added three fill policy operators: linear, previous, and fixed
  • Supports filtering data points by measures
  • Supports Z-to-A index
  • Supports processing abnormal query requests (Overlimit or Overtime)

Functions optimized

  • Optimized the interface of Pipeline
  • Removed the limit on special characters in tags and measures

Issues fixed

  • Fixed the issues of invalid datacleanup and measuredelete
  • Fixed the issue of console listpage open error
  • Fixed the issue of multi-query error

V1.2.0       February 7, 2018

Functions optimized

  • Optimized the instance stability: solved the instance instability caused by big queries
  • When downsampling, uses the local time zone of the region in which the instance is located by default

Issues fixed

  • Fixed the incomplete TagValue display in query results in the console


V1.1.2      November 30, 2017

New features

  • Provides the “getlastdp” API for obtaining the latest time series data
  • Opened the “China South 1 (Shenzhen)” region and three zones — A, B and C

Functions optimized

  • Optimized the API for timeline deletion to improve the deletion efficiency


V1.1.1      November 16, 2017

New features

  • TSDB supports simultaneous access from public networks and VPC networks


V1.1.0      November 3, 2017

New features

  • Released the TSDB’s official Client for JAVA 1.0.0, which provides the standard APIs, non-block I/Os, instance protection, automatic batch sending and connection management
  • Supports deleting millions of time series in seconds through APIs or in the console
  • Optimized instance protection: increase the limit on the number of data points for a single request to assure the instance availability.
  • Opened two regions — “China North 1 (Qingdao)” and “China North 2 (Beijing)”

Functions optimized

  • Provided automatic O&M to enable alarm monitoring of instance unavailability

Issues fixed

  • Fixed the issue of instance unavailability caused by big time ranges in queries
  • Fixed the issue of instance unavailability caused by incompatibility of asynchronous request APIs


V1.0.2      September 15, 2017

New features

  • Integrated with RAM to enable the resource permission management across primary accounts and sub-accounts


V1.0.1      August 28, 2017

New features

  • Integrated with CloudMonitor to enable alarm monitoring of instance metrics

Functions optimized

  • Optimized the instance creation process, and display the creation progress in percentage in real time on the instance list page
  • Enhance the instance configuration to support a maximum number of 16 tags for a single timeline

Issues fixed

  • Fixed the issue of abnormal instance names, which is caused by unspecified instance names during instance creation
  • Fixed the issue of abnormal curve display occurred in instance monitoring charts
  • Fixed the issue of instance creation exceptions caused by order creations in non-VPC environments

 

V1.0.0       July 31, 2017

TSDB V1.0.0 is officially open for beta testing, and provides the following features:

  • Supports reading and writing time series data through the OpenTSDB protocol

  • Provides data storage with a high compression ratio. The storage space required by a single datapoint is less than two bytes

  • Data Management Service (DMS)

    • Data’s validity period: Allows you to set the data’s validity periods. Expired data will be automatically deleted.
    • Data deletion: Allows you to delete useless or dirty data to release the storage space
    • Data query: Allows you to perform Web-based data query
  • Instance monitoring

    • The TSDB console supports real-time monitoring of the three key indicators — the writing TPS, the total timelines stored and the storage space
  • Security

    • TSDB instances support only VPC access by default to strengthen the protection for instances
    • IP address whitelist is provided to protect the security of your data on the instances
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