I have added ojdbc.jar file in /usr/lib/sqoop/lib and I am trying to connect oracle to hadoop using sqoop but facing error.
I am using following command:
sqoop list-tables --connect jdbc:oracle:thin://#192.162.2.8:1521:orcl --username hr --password abc
But the i get following error:
15/05/05 09:21:31 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
15/05/05 09:21:32 ERROR manager.OracleManager: Failed to rollback transaction
java.lang.NullPointerException
at com.cloudera.sqoop.manager.OracleManager.listTables(OracleManager.java:596)
at com.cloudera.sqoop.tool.ListTablesTool.run(ListTablesTool.java:49)
at com.cloudera.sqoop.Sqoop.run(Sqoop.java:144)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at com.cloudera.sqoop.Sqoop.runSqoop(Sqoop.java:180)
at com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:218)
at com.cloudera.sqoop.Sqoop.main(Sqoop.java:228)
15/05/05 09:21:32 ERROR manager.OracleManager: Failed to list tables
java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.cloudera.sqoop.manager.OracleManager.makeConnection(OracleManager.java:275)
at com.cloudera.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:51)
at com.cloudera.sqoop.manager.OracleManager.listTables(OracleManager.java:585)
at com.cloudera.sqoop.tool.ListTablesTool.run(ListTablesTool.java:49)
at com.cloudera.sqoop.Sqoop.run(Sqoop.java:144)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at com.cloudera.sqoop.Sqoop.runSqoop(Sqoop.java:180)
at com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:218)
at com.cloudera.sqoop.Sqoop.main(Sqoop.java:228)
Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:439)
at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:454)
at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:693)
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:251)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1140)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:340)
... 16 more
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:149)
at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:405)
is there anyhthing wrong with the sqoop command.?
The error "network adaptor could not establish connection" is coming because of incorrect jdbc url. Jdbc url in your sqoop command should be in this format: jdbc:oracle:thin:#192.162.2.8:1521:orcl
The connection refused error may occur by scenarios as far as I know.
The Oracle service might not be running on the specified host on the
given port number.
The firewall in between might restrict the client access to the
oracle server through the given port number.
So I suggest you to first confirm the oracle host, port and the firewall restriction in between.
you can easily check the access by using telnet as below,
telnet 192.162.2.8 1521
See if the listener and the database are initiated. I just started the listener (lsnrctl start) and the database (sqlplus / as sysdba and startup) and it worked.
Related
I'm trying to kerberise my HBase Cluster and I get some problems with Zookeeper. When I start Hbase I get this error on the Master log :
ERROR [main-SendThread(X.X.X.X:2181)] client.ZooKeeperSaslClient: An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - LOOKING_UP_SERVER)]) occurred when evaluating Zookeeper Quorum Member's received SASL token. Zookeeper Client will go to AUTH_FAILED state.
ERROR [main-SendThread(X.X.X.X:2181)] zookeeper.ClientCnxn: SASL authentication with Zookeeper Quorum member failed: javax.security.sasl.SaslException: An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - LOOKING_UP_SERVER)]) occurred when evaluating Zookeeper Quorum Member's received SASL token. Zookeeper Client will go to AUTH_FAILED state.
DEBUG [main-EventThread] zookeeper.ZKWatcher: master:16000-0x16c236187be0000, quorum=Y.Y.Y.Y:2181,X.X.X.X:2181, baseZNode=/hbase Received ZooKeeper Event, type=None, state=AuthFailed, path=null
DEBUG [main] zookeeper.ZooKeeper: Close called on already closed client
On the Zookeeper log, I get :
WARN [QuorumPeer[myid=0]/0:0:0:0:0:0:0:0:2181] quorum.Learner: Unexpected exception, tries=0, connecting to /X.X.X.X:2888
java.net.ConnectException: Connection refused (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.apache.zookeeper.server.quorum.Learner.connectToLeader(Learner.java:229)
at org.apache.zookeeper.server.quorum.Follower.followLeader(Follower.java:71)
at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:937)
I verified my firewall, the ports are open
For the configuration, I followed the HBase Reference Guide :
http://hbase.apache.org/book.html#zk.sasl.auth
At first I thought it was a problem with my keytab but Hadoop is working fine with it.
I run HBase 2.0.5, Hadoop 3.1.2 and the Zookeeper is the one provided by HBase.
Following #SamsonScharfrichter 's comment, I've tried a few things :
I've created and specified in /etc/hosts the FQDN of my servers and modified my configurations to reflect this change.
Changed the hostname of my servers for the FQDN
tried to nslookup my hostnames, didn't work since they are specified in /etc/hosts
It didn't do anything, I'm still getting the error. My guess is that Kerberos tries to search for a DNS on my public NIC and not my private. I do not know why it struggles so hard to find my servers, since hadoop has absolutely no problem with it.
EDIT - I set up a private DNS on my network. DNS working great, still getting the error. I'm about to give up
EDIT 2 - I installed tshark on the node with the error. Apparently I get a frame with the message :
Error: KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN
which is weird, I verified my keytab and the principals listed in kadmin. Maybe there defaults principals that I don't use ?
Using the kafka-lenses-dev image, I ran into problems connecting Kafka to the local Elasticsearch 7.1.1 instance. As you can see, the connection is refused, although the instance is up and running and it's possible to curl docs in. Is the version of Elastic problematic for the connector or is the config wrong?
Config
connector.class=io.confluent.connect.elasticsearch.ElasticsearchSinkConnector
type.name=kafka-connect
key.converter.schemas.enable=false
topics=cc_data
name=elastic-sink
value.converter.schemas.enable=false
connection.url=http://localhost:9200
key.ignore=true
Error
org.apache.kafka.connect.errors.ConnectException: Couldn't start ElasticsearchSinkTask due to connection error:
at io.confluent.connect.elasticsearch.jest.JestElasticsearchClient.<init>(JestElasticsearchClient.java:147)
at io.confluent.connect.elasticsearch.jest.JestElasticsearchClient.<init>(JestElasticsearchClient.java:114)
at io.confluent.connect.elasticsearch.ElasticsearchSinkTask.start(ElasticsearchSinkTask.java:120)
...
Caused by: io.searchbox.client.config.exception.CouldNotConnectException: Could not connect to http://localhost:9200
at io.searchbox.client.http.JestHttpClient.execute(JestHttpClient.java:60)
at io.confluent.connect.elasticsearch.jest.JestElasticsearchClient.getServerVersion(JestElasticsearchClient.java:168)
at io.confluent.connect.elasticsearch.jest.JestElasticsearchClient.<init>(JestElasticsearchClient.java:145)
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to localhost:9200 [localhost/127.0.0.1] failed: Connection refused (Connection refused)
...
Caused by: java.net.ConnectException: Connection refused (Connection refused)
...
You've specified Elasticsearch as being at localhost:9200. Unless Elasticsearch is running on the same container as Kafka Connect then this hostname is wrong. You need to specify the hostname of Elasticsearch in a form that is reachable from where Kafka Connect is running.
As an example, you can see an example of how to configure this based on this Docker Compose here.
in my company i using Weblogic 10.3.6.0 on OEL 6.5 for connecting to a Oracle database in another location when i try to connect with weblogic to db i getting that error
Error encountered:
java.sql.SQLRecoverableException: IO Error: Connection reset
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:467)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at utils.dbping.main(dbping.java:204)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:167)
at oracle.net.ns.Packet.receive(Packet.java:300)
at oracle.net.ns.DataPacket.receive(DataPacket.java:106)
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:315)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:260)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:185)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:102)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:124)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:80)
at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1137)
at oracle.jdbc.driver.T4C8TTIdty.receive(T4C8TTIdty.java:669)
at oracle.jdbc.driver.T4C8TTIdty.doRPC(T4C8TTIdty.java:578)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1166)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:322)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:94)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at utils.dbping.main(dbping.java:205)
so i change the SID to an invalid SID and get that error
Error encountered:
java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:458)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at utils.dbping.main(dbping.java:204)
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:395)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1102)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:320)
... 7 more
from that i found my connection to database is OK
i try that from other servers in my company and Weblogic 12c with JDK 8 and get "Connection Reset" error again
i try in my local Weblogic on Windows OS and get success
So... What can i dooo
Can you please check a few things like :
is the connection successful from console when you try to test the
datasource?
is there any firewall restricting the connection between your DB and Weblogic server.
what is the driver that you are using for your production and is it
the same as of your windows PC?
is this happening everytime or is it an intermittent issue?
check the below thread for some more hints :
Oracle 11g connection reset error
I'm running Sqoop commands to import data from MS SQL with SSL enabled .
I have created the keystore and added the certificates to the keystore. I'm using Sqoop version 1.4.6-cdh5.11.2
Below is my Sqoop command :
sqoop import -Dfile.encoding=UTF-8
--driver "com.microsoft.sqlserver.jdbc.SQLServerDriver"
--connect "jdbc:sqlserver://xxxxxx:1433;databaseName=xxx-example;encrypt=True;TrustServerCertificate=False;hostNameInCertificate=xxxxxx.xxxx.net;trustStore=/home/user1/trust.jks;trustStorePassword=xxxx"
--username User1
--password 'xxxxx'
--null-string '\\N'
--null-non-string '\\N' -delete-target-dir
--target-dir "/home/john/PROGRAMS"
--table programs
--fields-terminated-by "\001"
--hive-drop-import-delims
--split-by 'ID'
--outdir 'temp/john/tables'
--bindir '/usr/john/PROGRAMS' -m 1
I've set the encryptions as true , TrustServerCertificate as false , trustStore= and trustStorePassword as the keystore password.
encrypt=True;TrustServerCertificate=False
Below is the error that i get while running the sqoop command :
18/01/22 10:12:10 INFO mapreduce.Job: Task Id : attempt_1516292804343_13212_m_000001_0, Status : FAILED
Error: java.lang.RuntimeException: java.lang.RuntimeException: com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty".
at org.apache.sqoop.mapreduce.db.DBInputFormat.setDbConf(DBInputFormat.java:170)
at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:161)
at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:755)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1920)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.RuntimeException: com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty".
at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:223)
at org.apache.sqoop.mapreduce.db.DBInputFormat.setDbConf(DBInputFormat.java:168)
... 10 more
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty".
at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1667)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1668)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1323)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at org.apache.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:302)
at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:216)
... 11 more
Caused by: javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1906)
at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1889)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1410)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1618)
How can i solve this issue ?
I've tried adding -Djavax.net.ssl.trustStore= , but it didn't work.
The Microsoft doc says, For SSL to work at all, it is absolutely necessary to have the JSSE providers configured correctly for the JRE you are using. There are two steps to this:
1) Look at the java.security file in your JRE installation
(typically found in the jre\lib\security directory). The installed
security providers are listed in that file as security.provider.x=…
where ‘x’ is the priority used. For Sun JRE installations, the first
priority provider should be Sun’s. E.g.: you should have the line
“security.provider.1=sun.security.provider.Sun” in that file. For
other JRE's, please refer to the JRE's documentation regarding their
default provider name. We recommend when using the IBM JRE to specify
the "com.ibm.jsse.IBMJSSEProvider" as the first security provider to
use.
2) Next, make sure that the classpath points to the correct JAR
files (in the jre\lib directory) for use with those providers. For
Sun, the classpath should include jsse.jar. For IBM, should include
ibmjsse.jar.
Please refer this Microsoft doc that is explained by the same error you are getting (“The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error)
Looks like you have to pass the below java parameters in the sqoop job
-Djavax.net.ssl.trustStore=C:\MyCertificates\storeName
-Djavax.net.ssl.trustStorePassword=storePassword
I have 2 node in Cassandra cluster with IP:Port aa.aaa.a.aaa:9043(node) and xx.xxx.x.xxx:9043. When i trying to connect using following config **PoolingOptions poolingOptions = new PoolingOptions();
poolingOptions.setCoreConnectionsPerHost(HostDistance.LOCAL, 2)
.setMaxConnectionsPerHost(HostDistance.LOCAL, 4)
.setCoreConnectionsPerHost(HostDistance.REMOTE, 2)
.setMaxConnectionsPerHost(HostDistance.REMOTE, 4)
.setMaxRequestsPerConnection(HostDistance.LOCAL, 200)
.setMaxRequestsPerConnection(HostDistance.REMOTE, 200);
cluster = Cluster.builder()
.addContactPointsWithPorts(socketAddressList)
.withPoolingOptions(poolingOptions)
.withRetryPolicy(DefaultRetryPolicy.INSTANCE)
.withLoadBalancingPolicy(new TokenAwarePolicy(new DCAwareRoundRobinPolicy())).build();
Session session = cluster.connect(cassandraDB);**
I am getting following exception 16/01/14 09:52:45 INFO core.NettyUtil: Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
16/01/14 09:52:46 WARN core.Cluster: ***You listed /xx.xxx.x.xxx:9043 in your contact points, but it could not be reached at startup*
16/01/14 09:52:47 INFO policies.DCAwareRoundRobinPolicy: Using data-center name 'name' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor)ent.Futures$CombinedFuture setExceptionAndMaybeLog
SEVERE: input future failed.
com.datastax.driver.core.TransportException: [/xx.xxx.x.xxx:9042] Cannot connect
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:156)
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:139)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused: /xx.xxx.x.xxx:9042
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)
... 6 more
16/01/14 09:52:47 ERROR core.Session: Error creating pool to /xx.xxx.x.xxx:9042
com.datastax.driver.core.TransportException: [/xx.xxx.x.xxx:9042] Cannot connect
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:156)
at com.datastax.driver.core.Connection$1.operationComplete(Connection.java:139)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused: /xx.xxx.x.xxx:9042
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)**
My Question are:
why it is trying to connect on port 9042, while no where i am using this port in code as well as in config file ?
cassandra version: Cassandra 2.2.1
why it is trying to connect on port 9042, while no where i am using this port in code as well as in config file ?
9042 is the default port for the CQL binary protocol.
Can you show us the content of the variable socketAddressList that you passed to the cluster builder ?
Is there any reason you're using port 9043 instead of the default 9042 port ?