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DocumentationData Transfer ServiceData Subscription 2.0MySQL Series Data SubscriptionPre-check Failure HandlingDatabase Connection Check

Database Connection Check

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Last updated: 2026-11-05 10:31:39
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Checking Details

The source and target databases need to be connected normally. If the connection fails, a connection failure is reported.

Causes

The security groups or firewalls have been set for the network or server where the source database is located.
The source database has restricted access by source IP address.
The network port is not open.
The database account or password is incorrect.

Fix

Handle the issues according to the corresponding links in Causes of Issues.

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