I'm having issues making a connection to an AS400 database inside of Play!.
My application.conf looks like:
db.default.driver="com.ibm.as400.access.AS400JDBCDriver"
db.default.url="jdbc:as400://SERVER;libraries=A,B,C;toolbox trace=all;trace=true"
db.default.username="user"
db.default.password="password"
I've set up jt400 in the classpath, and I can see under "external libraries" that it shows up and is available. But essentially I get an error message about failing to connect (on user/password I know works) and failure to execute isValid(), which is a function that can not be found inside of AS400JDBCConnection class.
[error] c.z.h.p.PoolBase - HikariPool-1 - Failed to execute isValid() for connection, configure connection test query. (com.ibm.as400.access.AS400JDBCConnection.isValid(I)Z)
[error] application -
! #72265nf0a - Internal server error, for (GET) [/] ->
play.api.Configuration$$anon$1: Configuration error[Cannot connect to database [default]]
at play.api.Configuration$.configError(Configuration.scala:154)
at play.api.Configuration.reportError(Configuration.scala:806)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:48)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
at scala.collection.immutable.List.foreach(List.scala:381)
at play.api.db.DefaultDBApi.connect(DefaultDBApi.scala:42)
at play.api.db.DBApiProvider.get$lzycompute(DBModule.scala:72)
at play.api.db.DBApiProvider.get(DBModule.scala:62)
at play.api.db.DBApiProvider.get(DBModule.scala:58)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
Caused by: play.api.Configuration$$anon$1: Configuration error[Failed to initialize pool: com.ibm.as400.access.AS400JDBCConnection.isValid(I)Z]
at play.api.Configuration$.configError(Configuration.scala:154)
at play.api.PlayConfig.reportError(Configuration.scala:996)
at play.api.db.HikariCPConnectionPool.create(HikariCPModule.scala:70)
at play.api.db.PooledDatabase.createDataSource(Databases.scala:199)
at play.api.db.DefaultDatabase.dataSource$lzycompute(Databases.scala:123)
at play.api.db.DefaultDatabase.dataSource(Databases.scala:121)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:142)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:138)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:44)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: com.ibm.as400.access.AS400JDBCConnection.isValid(I)Z
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:512)
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:105)
at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:71)
at play.api.db.HikariCPConnectionPool$$anonfun$1.apply(HikariCPModule.scala:58)
at play.api.db.HikariCPConnectionPool$$anonfun$1.apply(HikariCPModule.scala:54)
at scala.util.Try$.apply(Try.scala:192)
at play.api.db.HikariCPConnectionPool.create(HikariCPModule.scala:54)
at play.api.db.PooledDatabase.createDataSource(Databases.scala:199)
at play.api.db.DefaultDatabase.dataSource$lzycompute(Databases.scala:123)
at play.api.db.DefaultDatabase.dataSource(Databases.scala:121)
Caused by: java.lang.AbstractMethodError: com.ibm.as400.access.AS400JDBCConnection.isValid(I)Z
at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:400)
at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:375)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:346)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:506)
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:105)
at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:71)
at play.api.db.HikariCPConnectionPool$$anonfun$1.apply(HikariCPModule.scala:58)
at play.api.db.HikariCPConnectionPool$$anonfun$1.apply(HikariCPModule.scala:54)
at scala.util.Try$.apply(Try.scala:192)
at play.api.db.HikariCPConnectionPool.create(HikariCPModule.scala:54)
I'm able to connect in other java-based projects using something like:
try {
Class.forName("com.ibm.as400.access.AS400JDBCDriver");
Connection con = DriverManager.getConnection("jdbc:as400://" +
ApplicationAuthentication.server + "/" +
ApplicationAuthentication.library,
ApplicationAuthentication.user,
ApplicationAuthentication.password
);
} catch (Exception e) {
System.err.println(e);
throw new WebApplicationException(genericError, Response.Status.UNAUTHORIZED);
}
Guessing from the stacktrace, it appears that the connection returned from your driver is not playing well with the connection Hikari Connection Pool. Hikari is default connection pool in playframework.
Specifically, your exception trace shows that the Hikari CP is attempting to call isValid method on the connection object returned by your JDBC driver and then failing with java.lang.AbstractMethodError.
You can try switching to BoneCP connection pool and see if it helps. You can also check comments on this issue on hikari github issue list
Try adding the following to application.config
db.default.hikaricp.connectionTestQuery="SELECT 1"
Not tested in Play Framework but I had similar issue on spring framework and solved in that way.
Use liquibase datasource like below with connection-test-query
#Bean
#LiquibaseDataSource
public DataSource liquibaseDataSource() {
HikariDataSource dataSource = (HikariDataSource) DataSourceBuilder.create().url("url")
.username("username")
.password("password")
.type(HikariDataSource.class).build();
dataSource.setConnectionTestQuery("select 1 from sysibm.sysdummy1");
return dataSource;
}
Related
Like mentioned here we have almost the same issues with a java project (playframework) with neo4j-ogm and the ogm-bolt-driver (3.2.27). Connection resets sometimes, throws exception and reconnects with the next request (mostly).
The nodes will be queried from database via repositories and neo4j-ogm session (will be opened for small pieces of work).
Any advice will be appreciated.
play.api.UnexpectedException: Unexpected exception[ConnectionException: Connection to the database failed]
at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:358)
at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:264)
at play.core.server.AkkaHttpServer$$anonfun$2.applyOrElse(AkkaHttpServer.scala:430)
at play.core.server.AkkaHttpServer$$anonfun$2.applyOrElse(AkkaHttpServer.scala:422)
at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:454)
at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:63)
at akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:100)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:94)
at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:100)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:49)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:48)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Caused by: org.neo4j.ogm.exception.ConnectionException: Connection to the database failed
at org.neo4j.ogm.drivers.bolt.driver.BoltDriverExceptionTranslator.translateExceptionIfPossible(BoltDriverExceptionTranslator.java:38)
at org.neo4j.ogm.session.Neo4jSession.doInTransaction(Neo4jSession.java:601)
at org.neo4j.ogm.session.Neo4jSession.doInTransaction(Neo4jSession.java:558)
at org.neo4j.ogm.session.delegates.LoadOneDelegate.load(LoadOneDelegate.java:87)
at org.neo4j.ogm.session.delegates.LoadOneDelegate.load(LoadOneDelegate.java:53)
at org.neo4j.ogm.session.Neo4jSession.load(Neo4jSession.java:178)
at modules.shared.repositories.CrudRepository.find(CrudRepository.java:50)
at config.secured.Secured.getUserFromSession(Secured.java:88)
at config.secured.Secured.getUser(Secured.java:56)
at config.secured.Secured.getUser(Secured.java:39)
at config.secured.DataWizardSecurity$AuthenticatedAction.call(DataWizardSecurity.java:63)
at config.filter.SafeFormFactoryToRequest.call(SafeFormFactoryToRequest.java:24)
at config.filter.Messaged.call(Messaged.java:29)
at play.core.j.JavaAction.$anonfun$apply$8(JavaAction.scala:175)
at scala.concurrent.Future$.$anonfun$apply$1(Future.scala:672)
at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:431)
at play.core.j.HttpExecutionContext.$anonfun$execute$1(HttpExecutionContext.scala:64)
at play.api.libs.streams.Execution$trampoline$.execute(Execution.scala:70)
at play.core.j.HttpExecutionContext.execute(HttpExecutionContext.scala:59)
at scala.concurrent.impl.Promise$Transformation.submitWithValue(Promise.scala:393)
at scala.concurrent.impl.Promise$DefaultPromise.submitWithValue(Promise.scala:302)
at scala.concurrent.impl.Promise$DefaultPromise.dispatchOrAddCallbacks(Promise.scala:276)
at scala.concurrent.impl.Promise$DefaultPromise.map(Promise.scala:146)
at scala.concurrent.Future$.apply(Future.scala:672)
at play.core.j.JavaAction.apply(JavaAction.scala:176)
at play.api.mvc.Action.$anonfun$apply$4(Action.scala:82)
at play.api.libs.streams.StrictAccumulator.$anonfun$mapFuture$4(Accumulator.scala:168)
at scala.util.Try$.apply(Try.scala:210)
at play.api.libs.streams.StrictAccumulator.$anonfun$mapFuture$3(Accumulator.scala:168)
at scala.Function1.$anonfun$andThen$1(Function1.scala:85)
at scala.Function1.$anonfun$andThen$1(Function1.scala:85)
at scala.Function1.$anonfun$andThen$1(Function1.scala:85)
at scala.Function1.$anonfun$andThen$1(Function1.scala:85)
at scala.Function1.$anonfun$andThen$1(Function1.scala:85)
at play.api.libs.streams.StrictAccumulator.run(Accumulator.scala:199)
at play.core.server.AkkaHttpServer.$anonfun$runAction$4(AkkaHttpServer.scala:417)
at akka.http.scaladsl.util.FastFuture$.strictTransform$1(FastFuture.scala:41)
at akka.http.scaladsl.util.FastFuture$.$anonfun$transformWith$3(FastFuture.scala:51)
at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:448)
... 12 common frames omitted
Caused by: org.neo4j.driver.exceptions.ServiceUnavailableException: Connection to the database failed
at org.neo4j.driver.internal.util.Futures.blockingGet(Futures.java:143)
at org.neo4j.driver.internal.InternalSession.beginTransaction(InternalSession.java:98)
at org.neo4j.driver.internal.InternalSession.beginTransaction(InternalSession.java:92)
at org.neo4j.ogm.drivers.bolt.transaction.BoltTransaction.newOrExistingNativeTransaction(BoltTransaction.java:62)
at org.neo4j.ogm.drivers.bolt.transaction.BoltTransaction.<init>(BoltTransaction.java:50)
at org.neo4j.ogm.drivers.bolt.driver.BoltDriver.lambda$null$0(BoltDriver.java:128)
at org.neo4j.ogm.session.transaction.DefaultTransactionManager.openTransaction(DefaultTransactionManager.java:75)
at org.neo4j.ogm.session.Neo4jSession.beginTransaction(Neo4jSession.java:530)
at org.neo4j.ogm.session.Neo4jSession.doInTransaction(Neo4jSession.java:580)
... 49 common frames omitted
Suppressed: org.neo4j.driver.internal.util.ErrorUtil$InternalExceptionCause: null
at org.neo4j.driver.internal.async.inbound.ChannelErrorHandler.transformError(ChannelErrorHandler.java:127)
at org.neo4j.driver.internal.async.inbound.ChannelErrorHandler.fail(ChannelErrorHandler.java:113)
at org.neo4j.driver.internal.async.inbound.ChannelErrorHandler.exceptionCaught(ChannelErrorHandler.java:99)
at org.neo4j.driver.internal.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:302)
at org.neo4j.driver.internal.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:281)
at org.neo4j.driver.internal.shaded.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:273)
at org.neo4j.driver.internal.shaded.io.netty.channel.DefaultChannelPipeline$HeadContext.exceptionCaught(DefaultChannelPipeline.java:1377)
at org.neo4j.driver.internal.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:302)
at org.neo4j.driver.internal.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:281)
at org.neo4j.driver.internal.shaded.io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:907)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.handleReadException(AbstractNioByteChannel.java:125)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:177)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
at org.neo4j.driver.internal.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
at org.neo4j.driver.internal.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at org.neo4j.driver.internal.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.net.SocketException: Connection reset
at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:345)
at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:376)
at org.neo4j.driver.internal.shaded.io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:253)
at org.neo4j.driver.internal.shaded.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1132)
at org.neo4j.driver.internal.shaded.io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:350)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:151)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
at org.neo4j.driver.internal.shaded.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
at org.neo4j.driver.internal.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
at org.neo4j.driver.internal.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at org.neo4j.driver.internal.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:832)
As I mention in my answer here, this exception comes from Neo4j Java Driver and there may be several reasons for this to happen.
For instance, this might happen when driver acquires a connection from internal connection pool that has been idle for too long. Some cloud providers limit connection idle time for load balancers. Driver may fail as soon as it tries using such connection.
You can enable connection liveness check to assist with this. It makes sure that a short network exchange happens for every connection that has been idle over the configured timeout. If exchange fails, another connection is picked or established before it is provided for further driver usage. While this involves an extra network exchange, it is likely to prevent driver failures that might lead to higher-level retry management with potentially exponential delay. The timeout can be set to zero if you wish to test every connection.
Sample configuration:
var config = Config.builder()
.withConnectionLivenessCheckTimeout( 60000, TimeUnit.MILLISECONDS )
.build();
var driver = GraphDatabase.driver( URL, AuthTokens, config );
I have an application where user can choose any type and version of database(relational) provide URL, username, password and create datasource, connect to database, then run SELECT queries. To connect database I am using HikariCp for my connection pool(before I used DBCP2 as connection timeout didn't work I changed to HikariCp). Here is my configuration
HikariConfig config = new HikariConfig();
config.setDriverClassName(StringUtils.trimToEmpty(driver));
config.setJdbcUrl(StringUtils.trimToEmpty(url));
config.setUsername(username);
config.setPassword(password);
config.setMaximumPoolSize(POOL_MAX_ACTIVE);
config.setMinimumIdle(POOL_INITIAL_SIZE);
config.setConnectionTestQuery(validationQuery);
config.setConnectionTimeout(TimeUnit.SECONDS.toMillis(jdbcTimeout));
HikariDataSource dataSource = new HikariDataSource(config);
Connection connection = dataSource.getConnection();
When I am trying to connect MYsql database I am getting the following error:
HikariPool-8 - Starting...
2019-04-10 18:45:49 WARN com.zaxxer.hikari.pool.PoolBase:472 - ReqId:60a79ef60413424e96a4fa73010fc861 - HikariPool-8 - Default transaction isolation level detection failed ((conn=14) Unknown system variable 'tx_isolation').
2019-04-10 18:45:49 ERROR com.zaxxer.hikari.pool.HikariPool:574 - ReqId:60a79ef60413424e96a4fa73010fc861 - HikariPool-8 - Exception during pool initialization.
java.sql.SQLException: (conn=14) Unknown system variable 'tx_isolation'
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:198)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:110)
What is wrong in the configuration? with DBCP2 it works fine
I am using mariadb-java-client, version: '2.2.1' driver to connect to Mysql database.
I would like to start my Java/Play! Service even though the Database is not yet reachable. So far, if the database is not available the service stops. Is it possible in Play to try and reconnect every second or so without completely stopping the service and reconnecting to db as soon as connection is available.
Our application.conf currently looks like this:
play.evolutions.enabled=false
//play.db.pool=bonecp
db {
default.driver=org.postgresql.Driver
default.url="jdbc:postgresql://postgresdb.postgres:5432/postcode"
default.username="<username>"
default.password="<strong-password>"
}
play.db {
config = "db"
prototype.hikaricp = {
connectionTimeout = 250 milliseconds
initializationFailFast = false
readOnly = true
}
}
ebean.default = ["models.*"]
Currently I get the following logs:
2017-05-15 13:26:54.525 [error] postcode-play: Connection error:
org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections
Ort: Datei: postinit.c, Routine: InitPostgres, Zeile: 779.
Server SQLState: 53300
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2412)
at org.postgresql.core.v3.QueryExecutorImpl.readStartupMessages(QueryExecutorImpl.java:2538)
at org.postgresql.core.v3.QueryExecutorImpl.<init>(QueryExecutorImpl.java:122)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:227)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:431)
at org.postgresql.Driver.connect(Driver.java:247)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
2017-05-15 13:26:54.626 [error] postcode-play: Connection error:
org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections
Ort: Datei: postinit.c, Routine: InitPostgres, Zeile: 779.
Server SQLState: 53300
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2412)
at org.postgresql.core.v3.QueryExecutorImpl.readStartupMessages(QueryExecutorImpl.java:2538)
at org.postgresql.core.v3.QueryExecutorImpl.<init>(QueryExecutorImpl.java:122)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:227)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:431)
at org.postgresql.Driver.connect(Driver.java:247)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
.
.
.
Indicating that the server does not stop altogether but tries to connect to db multiple times which is as desired. But if the database becomes available the following logs are written:
2017-05-15 14:08:43.748 [error] postcode-play:
! #7430ed7gf - Internal server error, for (GET) [/?postcode=88682&country=DE] ->
play.api.Configuration$$anon$1: Configuration error[Cannot connect to database [default]]
at play.api.Configuration$.configError(Configuration.scala:155)
at play.api.Configuration.reportError(Configuration.scala:808)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:48)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
at scala.collection.immutable.List.foreach(List.scala:392)
at play.api.db.DefaultDBApi.connect(DefaultDBApi.scala:42)
at play.api.db.DBApiProvider.get$lzycompute(DBModule.scala:72)
at play.api.db.DBApiProvider.get(DBModule.scala:62)
at play.api.db.DBApiProvider.get(DBModule.scala:58)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
Caused by: java.sql.SQLTransientConnectionException: HikariPool-4 - Connection is not available, request timed out after 5001ms.
at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:142)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:138)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:44)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
at scala.collection.immutable.List.foreach(List.scala:392)
at play.api.db.DefaultDBApi.connect(DefaultDBApi.scala:42)
Caused by: org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:265)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:431)
at org.postgresql.Driver.connect(Driver.java:247)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:193)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:430)
Caused by: java.net.ConnectException: Verbindungsaufbau abgelehnt (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.postgresql.core.PGStream.<init>(PGStream.java:62)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:144)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194
)
The server cannot reach out to the database even though it is available now. If I restart the server the database will be found and can be worked with, but the database lways has to be there on startup. How can I fix that, so that the app can be started independently of the database?
If the database becomes unavailable after the application has started it is no problem after the db becomes available again. it is automatically reconnected.
Any help is greatly apreciated!
It seems like you are leaving some connections open to Postgres. These connections must be closed or else Postgres will hit its max_connections limit.
You could increase max_connections but it's not recommended as performance of Postgres will degrade if it's set too high. Also, as you are using HikariCP it wouldn't be a bad idea to take a look at the HikariCP docs, in particular the idleTimeout and the minimumIdle config variables should help you.
If the above doesn't work then you must confirm exactly how many connections are being made to Postgres. Maybe even check the number of sessions you personally are making to Postgres via SSH or through other apps, not just the number of Play Framework connections.
I try to load cache from the given data source,but failed.
Exception in thread "main" javax.cache.integration.CacheLoaderException: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/platform75
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadCache(GridCacheStoreManagerAdapter.java:538)
at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter.localLoadCache(GridDhtCacheAdapter.java:497)
at org.apache.ignite.internal.processors.cache.GridCacheProxyImpl.localLoadCache(GridCacheProxyImpl.java:228)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter$LoadCacheJob.localExecute(GridCacheAdapter.java:5753)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter$LoadCacheJobV2.localExecute(GridCacheAdapter.java:5802)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter$TopologyVersionAwareJob.execute(GridCacheAdapter.java:6473)
at org.apache.ignite.compute.ComputeJobAdapter.call(ComputeJobAdapter.java:132)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$C2V2.execute(GridClosureProcessor.java:2037)
at org.apache.ignite.internal.processors.job.GridJobWorker$2.call(GridJobWorker.java:556)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6564)
at org.apache.ignite.internal.processors.job.GridJobWorker.execute0(GridJobWorker.java:550)
at org.apache.ignite.internal.processors.job.GridJobWorker.body(GridJobWorker.java:479)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1114)
at org.apache.ignite.internal.processors.task.GridTaskWorker.sendRequest(GridTaskWorker.java:1375)
at org.apache.ignite.internal.processors.task.GridTaskWorker.processMappedJobs(GridTaskWorker.java:643)
at org.apache.ignite.internal.processors.task.GridTaskWorker.body(GridTaskWorker.java:535)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at org.apache.ignite.internal.processors.task.GridTaskProcessor.startTask(GridTaskProcessor.java:679)
at org.apache.ignite.internal.processors.task.GridTaskProcessor.execute(GridTaskProcessor.java:403)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor.callAsync(GridClosureProcessor.java:417)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor.callAsync(GridClosureProcessor.java:390)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter.globalLoadCacheAsync(GridCacheAdapter.java:3790)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter.globalLoadCache(GridCacheAdapter.java:3729)
at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.loadCache(IgniteCacheProxy.java:390)
at com.primeton.ignitedb.example.CacheSpringStore.loadCache(CacheSpringStore.java:113)
at com.primeton.ignitedb.example.CacheSpringStore.main(CacheSpringStore.java:91)
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/platform75
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:627)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:692)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:724)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:749)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:764)
at com.primeton.ignitedb.example.CacheSpringPersonStore.loadCache(CacheSpringPersonStore.java:130)
at org.apache.ignite.internal.processors.cache.store.GridCacheWriteBehindStore.loadCache(GridCacheWriteBehindStore.java:369)
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadCache(GridCacheStoreManagerAdapter.java:512)
... 26 more
Caused by: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/platform75
at org.h2.jdbcx.JdbcDataSource.getJdbcConnection(JdbcDataSource.java:192)
at org.h2.jdbcx.JdbcDataSource.getXAConnection(JdbcDataSource.java:353)
at org.h2.jdbcx.JdbcDataSource.getPooledConnection(JdbcDataSource.java:385)
at org.h2.jdbcx.JdbcConnectionPool.getConnectionNow(JdbcConnectionPool.java:227)
at org.h2.jdbcx.JdbcConnectionPool.getConnection(JdbcConnectionPool.java:199)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 34 more
The code is below:
// Configure Spring session listener.
cacheCfg.setCacheStoreSessionListenerFactories(new Factory<CacheStoreSessionListener>() {
#Override public CacheStoreSessionListener create() {
CacheSpringStoreSessionListener lsnr = new CacheSpringStoreSessionListener();
lsnr.setDataSource(JdbcConnectionPool.create("jdbc:mysql://localhost:3306/platform75",
"root", "root"));
return lsnr;
}
});
In case you're trying to load data from MySQL to Ignite, you need to have MySQL driver on classpath. Just put the driver JAR into IGNITE_HOME/libs folder prior to starting the nodes, and rerun data loading.
I use the following properties file content:
driverClassName=org.apache.derby.jdbc.EmbeddedDriver
jdbcUrl=jdbc:derby:D:\\development\\databases\\test;create=true
connectionTimeout=3000
and
HikariConfig config = new HikariConfig(propertiesFilePath);
HikariDataSource ds = new HikariDataSource(config);
During
new HikariDataSource(config);
the following exception is thrown:
Caused by:
java.sql.SQLTransientConnectionException: HikariPool-0 - Connection is not available, request timed out after 3002ms.
kari.pool.HikariPool.getConnection(HikariPool.java:195)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:147)
at com.zaxxer.hikari.pool.HikariPool.initializeConnections(HikariPool.java:510)
What I can see is that the database directories are created.
What I am doing wrong?
derby version: 10.10.1.1
HikariCP version: 2.4.3
Update
Well the solution is pretty simple. The connection timeout was just to short.
If the database does not exist, the creation of the db just needs some time.
After increasing the connection timeout everything works fine.