Question: how to fail fast on bad DB password

[mbucc]

Hi,
If my HikariCP config has the wrong database credentials, I'd like my server to fail fast.

Seems like the only way is to wait for acquireRetries * acquireRetryDelay milliseconds, then try to call getConnection(), catch the SQLException and then exit.

Do I have that right?

Thanks,
Mark

[brettwooldridge]

That is correct.

Sent from my iPhone

On Feb 4, 2014, at 8:22 AM, mbucc [email protected] wrote:

Hi,
If my HikariCP config has the wrong database credentials, I'd like my server to fail fast.

Seems like the only way is to wait for the acquireRetries * acquireRetryDelay milliseconds, then try to call getConnection(), catch the SQLException and then exit.

Do I have that right?

Thanks,
Mark

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[brettwooldridge]

I'll investigate a way to fail the pool fast. Likely it will be via a RuntimeException thrown from the constructor ... but will require that the minimum pool size is non-zero.

[zimmi]

If you instantiate your DataSource programmatically, you could use the raw driver DataSource to do the getConnection() check. e.g.:

PGSimpleDataSource dataSource = new PGSimpleDataSource();
dataSource.setUser("username");
dataSource.setPassword("password");

// check raw data source, e.g. dataSource.getConnection();

HikariConfig config = new HikariConfig();
config.setDataSource(dataSource);

HikariDataSource connectionPool = new HikariDataSource(config);

But I guess that won't help if you do this the declarative way.

[brettwooldridge]

The recently released HikariCP 1.2.9 has a new property initializationFailFast that is not yet documented. If you set this to true, there will be a RuntimeException thrown when a HikariDataSource is constructed, providing that the minimumPoolSize is > 0.