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https://issues.apache.org/jira/browse/DRILL-7107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16793926#comment-16793926
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Karthikeyan Manivannan commented on DRILL-7107:
-----------------------------------------------
This problem happens because the zk.apply_secure_acl config parameter, shared
between client and server, is expected to have different values for client
(false) and server (true). The DrillClient and DrillBit both use the same logic
to read the config file. So if they are both run from the same installation and
the zk.apply_secure_acl parameter is set to ‘true', then the DrillClient also
sees that value to to be 'true’ and passes it on to the ZKAClProviderFactory.
This causes the ZKAClProviderFactory to crash because it has no context to
discover ACLProviders, when it is called by the client code.
Ideally, we should fix this by having different config files for client and
server. But for now, I am identifying the client codepath and not calling into
the ZKAClProviderFactory. I am testing this fix now.
> Unable to connect to Drill 1.15 through ZK
> ------------------------------------------
>
> Key: DRILL-7107
> URL: https://issues.apache.org/jira/browse/DRILL-7107
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Karthikeyan Manivannan
> Assignee: Karthikeyan Manivannan
> Priority: Major
>
> After upgrading to Drill 1.15, users are seeing they are no longer able to
> connect to Drill using ZK quorum. They are getting the following "Unable to
> setup ZK for client" error.
> [~]$ sqlline -u "jdbc:drill:zk=172.16.2.165:5181;auth=maprsasl"
> Error: Failure in connecting to Drill:
> org.apache.drill.exec.rpc.RpcException: Failure setting up ZK for client.
> (state=,code=0)
> java.sql.SQLNonTransientConnectionException: Failure in connecting to Drill:
> org.apache.drill.exec.rpc.RpcException: Failure setting up ZK for client.
> at
> org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:174)
> at
> org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:67)
> at
> org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:67)
> at
> org.apache.calcite.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:138)
> at org.apache.drill.jdbc.Driver.connect(Driver.java:72)
> at sqlline.DatabaseConnection.connect(DatabaseConnection.java:130)
> at sqlline.DatabaseConnection.getConnection(DatabaseConnection.java:179)
> at sqlline.Commands.connect(Commands.java:1247)
> at sqlline.Commands.connect(Commands.java:1139)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at sqlline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:38)
> at sqlline.SqlLine.dispatch(SqlLine.java:722)
> at sqlline.SqlLine.initArgs(SqlLine.java:416)
> at sqlline.SqlLine.begin(SqlLine.java:514)
> at sqlline.SqlLine.start(SqlLine.java:264)
> at sqlline.SqlLine.main(SqlLine.java:195)
> Caused by: org.apache.drill.exec.rpc.RpcException: Failure setting up ZK for
> client.
> at org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:340)
> at
> org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:165)
> ... 18 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.drill.exec.coord.zk.ZKACLProviderFactory.findACLProvider(ZKACLProviderFactory.java:68)
> at
> org.apache.drill.exec.coord.zk.ZKACLProviderFactory.getACLProvider(ZKACLProviderFactory.java:47)
> at
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator.<init>(ZKClusterCoordinator.java:114)
> at
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator.<init>(ZKClusterCoordinator.java:86)
> at org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:337)
> ... 19 more
> Apache Drill 1.15.0.0
> "This isn't your grandfather's SQL."
> sqlline>
>
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