On Wednesday, July 17th from 10 AM to 10:30 AM JST the databases supporting the Streaming Import REST API will undergo a short maintenance.

During the maintenance window, the database will experience failover, after which the respective systems are expected to recover in approximately 10 minutes. During the failover period, customers will observe the following symptoms:

- Streaming Imports error

During the database failover Streaming import (through td-agent or fluentd) requests will receive HTTP 5XX errors. Instances of fluentd / td-agent will handle the request errors automatically by buffering the data and retrying the uploads once the import service will have recovered. Customers interfacing with the Streaming Import REST API directly may have to keep track of the failures and execute the request again after the import service will have recovered.

- Mobile and JavaScript/Browser imports delay

Import requests from Browsers (Javascript SDK) and Mobiles (Android, iOS, and Unity SDKs) will continue to be accepted as usual but the requests will remain queued until after the database failover is complete. This will protract until after the import service will have recovered and shortly thereafter, up to 10 minutes.

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@treasure-data.com.
Posted on Jul 2, 21:21 PDT