Can Virtual Graph auto retry after connection reset

Support
1

The Virtual Graph connection to my Hive cluster stalls, when left idle for a while.
When I query the Virtual Graph, it fails with a broken pipe exception.
My workaround is to restart the StarDog Server.

Is there a way to start a Virtual Graph Connection without a restart?

What I want is for Virtual Graphs to "assure the connection" before using it.
Assure could involve tcp ping to the service port and/or sending an application-level status query. If that test fails, the Virtual Graph reestablishes the connection.

2

Here is the stack trace for the Hive broken pipe
HiveBrokenPipe.log (15.2 KB)

3

John,
This behavior can be configured in the Tomcat connection pool. Have you set any of the options? We add a few options as default if no others are provided. This configuration tests the connections while they sit idle in the pool with the intention of keeping them alive Home | Stardog Documentation Latest. You can also set testOnBorrow to get the behavior you desire.

Jess

4

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