How to set the ThreadPool Size in Slick? - scala

Question

How do I set the threadPool Size in slick ?
Here is my config:
pp {
profile = "slick.jdbc.OracleProfile$"
db {
url = "jdbc:oracle:thin:#52.4.90.244:1521:pp"
driver = oracle.jdbc.OracleDriver
keepAliveConnection = true
connectionPool = disabled
user = "xxx"
password = "xxx"
}
}
I am actually doing only one query, in streaming, do I really need a threadPool ? My goal is simply to retrieve all the rows from a table.
So far i am having the following error:
*** (s.basic.BasicBackend.stream) Signaling onSubscribe(slick.jdbc.JdbcBackend$JdbcStreamingActionContext#76f2bbc1)
*** (s.basic.BasicBackend.action) #1: [fused] cleanUp
try: andThen
1: PushStatementParameters StatementParameters(ForwardOnly,ReadOnly,null,null,100)
2: StreamingResultAction [select * FROM DRUG]
*** (s.basic.BasicBackend.action) #2: SynchronousDatabaseAction.Pin
*** (s.basic.BasicBackend.action) #3: [fused] andThen
1: PushStatementParameters StatementParameters(ForwardOnly,ReadOnly,null,null,100)
2: StreamingResultAction [select * FROM DRUG]
*** (s.basic.BasicBackend.action) #4: SynchronousDatabaseAction.Pin
*** (s.basic.BasicBackend.action) #5: SynchronousDatabaseAction.Unpin
*** (s.basic.BasicBackend.stream) Signaling onError(java.util.concurrent.RejectedExecutionException: Task slick.basic.BasicBackend$DatabaseDef$$anon$2#3061964c rejected from slick.util.AsyncExecutor$$anon$2$$anon$1#55d260cc[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 0])