question Re: Getting error when trying to connect to Phoenix from SQuirrel Client in Archives of Support Questions (Read Only)

Getting error when trying to connect to Phoenix from SQuirrel Client

anupam3693 — Tue, 03 Apr 2018 19:32:19 GMT

Hi Friends,

I am not able to connect to the Phoenix from SQuirrel Client.

Versions used:

HDP 2.5.3.0, phoenix-4.7.0.2.5.3.0-37, Hbase 1.1.2, SQuirrel Client version 3.8.1

I have created 3 node cluster using Ambari Installation (ambari - 2.5.1) on AWS EC2 Instance. I am able to access the Phoenix layer by using sqlline.py.

I have followed the below link to configure SQuirrel.

https://community.hortonworks.com/articles/44350/setting-up-squirrel-and-phoenix-integration.html

I am able to create the Phoenix driver and alias successfully but when I try to connect (I am not using any userid or password) it gives me below error:

--------------------------------------------------------------------------------------------------------------------------------------------------

java.lang.NullPointerException at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.getMetaReplicaNodes(ZooKeeperWatcher.java:395) at org.apache.hadoop.hbase.zookeeper.MetaTableLocator.blockUntilAvailable(MetaTableLocator.java:562) at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getMetaRegionLocation(ZooKeeperRegistry.java:61) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateMeta(ConnectionManager.java:1192) at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1159) at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:300) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:156) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:60) at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:327) at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:302) at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:167) at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:162) at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:794) at org.apache.hadoop.hbase.MetaTableAccessor.fullScan(MetaTableAccessor.java:602) at org.apache.hadoop.hbase.MetaTableAccessor.tableExists(MetaTableAccessor.java:366) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:405) at org.apache.phoenix.query.ConnectionQueryServicesImpl$13.call(ConnectionQueryServicesImpl.java:2358) at org.apache.phoenix.query.ConnectionQueryServicesImpl$13.call(ConnectionQueryServicesImpl.java:2327) at org.apache.phoenix.util.PhoenixContextExecutor.call(PhoenixContextExecutor.java:78) at org.apache.phoenix.query.ConnectionQueryServicesImpl.init(ConnectionQueryServicesImpl.java:2327) at org.apache.phoenix.jdbc.PhoenixDriver.getConnectionQueryServices(PhoenixDriver.java:233) at org.apache.phoenix.jdbc.PhoenixEmbeddedDriver.createConnection(PhoenixEmbeddedDriver.java:142) at org.apache.phoenix.jdbc.PhoenixDriver.connect(PhoenixDriver.java:202) at net.sourceforge.squirrel_sql.fw.sql.SQLDriverManager.getConnection(SQLDriverManager.java:133) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.executeConnect(OpenConnectionCommand.java:167) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$000(OpenConnectionCommand.java:45) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$1.run(OpenConnectionCommand.java:104) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Please advice.

Re: Getting error when trying to connect to Phoenix from SQuirrel Client

schhabra1 — Thu, 05 Apr 2018 00:30:08 GMT

Hi @Anupam Kumar,

Could you please provide details whether cluster is kerberised(Secure) or un-kerberised(Unsecure)?

Thanks

Shubham

Re: Getting error when trying to connect to Phoenix from SQuirrel Client

anupam3693 — Thu, 05 Apr 2018 09:54:29 GMT

@schhabra Its un-kerberised(Unsecure).

Re: Getting error when trying to connect to Phoenix from SQuirrel Client

tsuzuki — Thu, 05 Apr 2018 13:08:32 GMT

It looks like that the URL you specified may be wrong. Can you please check if the URL is correct?

The correct URL format is as follows:

jdbc:phoenix:<zookeeper quorum>:<zookeeper port>:<zookeeper znode parent>

You might not have specified correct zookeeper znode parent.

Re: Getting error when trying to connect to Phoenix from SQuirrel Client

anupam3693 — Thu, 05 Apr 2018 23:57:27 GMT

@Toshihiro Suzuki

jdbc:phoenix:ec2-111-11-11-11.compute-1.amazonaws.com:2181/hbase-unsecure

I have put in this format.

Re: Getting error when trying to connect to Phoenix from SQuirrel Client

anupam3693 — Tue, 10 Apr 2018 11:47:09 GMT

Hi Friends,

I was putting the url incorrectly, ":" was missing from the url after the port number.

So the correct one is as below:

jdbc:phoenix:ec2-11-111-11-111.compute-1.amazonaws.com:2181:/hbase-unsecure

But now I am getting the below error:

Unexpected Error occurred attempting to open an SQL connection. class java.util.concurrent.TimeoutException: null

java.util.concurrent.TimeoutException at java.util.concurrent.FutureTask.get(FutureTask.java:205) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.awaitConnection(OpenConnectionCommand.java:132) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.access$100(OpenConnectionCommand.java:45) at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand$2.run(OpenConnectionCommand.java:115) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Please advice.