[US, Tokyo, and EU Regions] Scheduled Databases maintenance
Scheduled Maintenance Report for Treasure Data
Completed
*Maintenance* and system *recovery* have been fully completed.

In the US region, the Workflow database upgrade took 10 minutes, from 6:45pm to 6:55pm PDT. During the failover, the Workflow API returned errors to all requests and the execution of Workflow jobs was delayed.
All other database upgrade in all regions incurred in no visible service impact.

The scheduled database maintenance is now *complete*.
Posted about 1 month ago. Jun 04, 2019 - 19:12 PDT
Verifying
The scheduled database failovers are complete.

We are monitoring the system closely to ensure all systems successfully complete their *recovery* and return as quickly as possible to full functionality.
Posted about 1 month ago. Jun 04, 2019 - 18:58 PDT
In progress
The scheduled database maintenance window is starting now.

During maintenance window, each database will experience failover, after which the respective systems are expected to recover in approximately 5 minutes. During the failover period, customers will observe the following symptoms:

- Queries submitted through the Presto JDBC/ODBC Gateway will receive timeout errors.
- Scheduled and running Workflows will experience delays in execution.
- In the Console, Data Workbench and Audience Studio will incur in errors caused by failures within the underlying Master Segments, Segments, and Workflows.
Posted about 1 month ago. Jun 04, 2019 - 18:00 PDT
Update
In about an hour, from 6:00 PM PDT (10:00 AM JST, 3:00 AM CEST), the maintenance window for the databases supporting the Presto JDBC/ODBC Gateway, Workflow and Audience Studio will commence.

During maintenance window, each database will experience failover, after which the respective systems are expected to recover in approximately 5 minutes. During the failover period, customers will observe the following symptoms:

- Queries submitted through the Presto JDBC/ODBC Gateway will receive timeout errors.
- Scheduled and running Workflows will experience delays in execution.
- In the Console, Data Workbench and Audience Studio will incur in errors caused by failures within the underlying Master Segments, Segments, and Workflows.

Beyond this notice, we will provide updates at the start and completion of the operation and once the verification of the new system is completed: at that time, all systems will have returned to full functionality and this Scheduled Maintenance will be closed.
Posted about 1 month ago. Jun 04, 2019 - 17:00 PDT
Update
We will be undergoing scheduled maintenance during this time.
Posted about 2 months ago. May 27, 2019 - 21:47 PDT
Scheduled
On Tuesday, June 4th from 6 to 7 PM PDT (June 5th from 10 to 11 AM JST, June 5th from 3 to 4 AM CEST) the databases supporting the Presto JDBC/ODBC Gateway, Workflow, and Audience Studio will undergo a short maintenance. The maintenance is necessary to upgrade the PostgreSQL database engine with the latest patches (including security related ones).

During maintenance window, each database will experience failover, after which the respective systems are expected to recover in approximately 5 minutes. During the failover period, customers will observe the following symptoms:

- Queries submitted through the Presto JDBC/ODBC Gateway will receive timeout errors.
- Scheduled and running Workflows will experience delays in execution.
- In the Console, Data Workbench and Audience Studio will incur in errors caused by failures within the underlying Master Segments, Segments, and Workflows.

# Communication

Beyond this notice, we will provide updates approximately 1 hour before the beginning of the maintenance window, at the start and completion of the operation, and once the verification is completed. At that time, all systems will have returned to full functionality and the Scheduled Maintenance will be closed.

If you have any question or concern about this upgrade, please feel free to reach out to our Support team at support@treasuredata.com.
Posted about 2 months ago. May 27, 2019 - 21:45 PDT
This scheduled maintenance affected: EU (Web Interface, Presto JDBC/ODBC Gateway, Workflow), Tokyo (Web Interface, Presto JDBC/ODBC Gateway, Workflow), and US (Web Interface, Presto JDBC/ODBC Gateway, Workflow).