播放框架一段时间后无法连接到数据库

Question

Play framework 2.1.0 使用 MSSQL 数据库时遇到了一个奇怪的问题

应用配置：

db.default.url="jdbc:jtds:sqlserver://localhost:1433/PlayApp;instance=SQL2008"
db.default.driver=net.sourceforge.jtds.jdbc.Driver
db.default.user=sa
db.default.pass=test
db.default.partitionCount=1
db.default.maxConnectionsPerPartition=5
db.default.minConnectionsPerPartition=5
db.default.acquireIncrement=1
db.default.acquireRetryAttempts=1
db.default.acquireRetryDelay=5

以下例外：

--- (Running the application from SBT, auto-reloading is enabled) ---

[info] play - Listening for HTTP on /0.0.0.0:9000

(Server started, use Ctrl+D to stop and go back to the console...)

[error] c.j.b.h.AbstractConnectionHook - Failed to acquire connection Sleeping for 5ms and trying again. Attempts left: 1. Exception: null
[error] application -

! @6h0j5mlj9 - Internal server error, for (GET) [/] ->

play.api.Configuration$$anon$1: Configuration error[Cannot connect to database [default]]
        at play.api.Configuration$.play$api$Configuration$$configError(Configuration.scala:80) ~[play_2.10.jar:2.1.0]
        at play.api.Configuration.reportError(Configuration.scala:558) ~[play_2.10.jar:2.1.0]
        at play.api.db.BoneCPPlugin$$anonfun$onStart$1.apply(DB.scala:251) ~[play-jdbc_2.10.jar:2.1.0]
        at play.api.db.BoneCPPlugin$$anonfun$onStart$1.apply(DB.scala:242) ~[play-jdbc_2.10.jar:2.1.0]
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) ~[scala-library.jar:na]
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) ~[scala-library.jar:na]
[error] application -

我尝试对问题进行排序，但每次收到此错误时我都需要重新启动我的 Sql 实例，这是连接池问题吗？

有人要回答吗？

Answer 1

你可以尝试改变吗

db.default.acquireRetryDelay=5

通过

db.default.acquireRetryDelay=5 seconds