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https://issues.apache.org/jira/browse/DRILL-7691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17180040#comment-17180040
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Juan Fung commented on DRILL-7691:
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I ran into problems starting zookeper via `zkServer.sh start`. It turns out to 
be a bug with tmux. I started zookeper in a fresh terminal (no tmux). So then I 
wondered what would happen if I `drillbit.sh start` outside of tmux...and while 
I still got the syntax error, drillbit really did start this time and 
`drill-conf` opens as expected. 

> Errors from drillbit.sh and drill-conf on Mac
> ---------------------------------------------
>
>                 Key: DRILL-7691
>                 URL: https://issues.apache.org/jira/browse/DRILL-7691
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.17.0
>         Environment: - OS: macOS Mojave 10.14.6
>  - Drill: 1.17.0 (homebrew)
>  - ZooKeeper: 3.5.7 (homebrew)
>  - Java: 1.8.0_202
>            Reporter: Edward Visel
>            Priority: Major
>
> As DRILL-6354 and DRILL-6508 have not been resolved, there are still syntax 
> errors in {{drillbit.sh}} on Mac:
> {code:bash}
> $ drillbit.sh start
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> Starting drillbit, logging to /usr/local/drill/log/drillbit.out
> {code}
> It looks like Drill still starts, though waiting a bit and checking reveals
> {code:bash}
> $ drillbit.sh status
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/Cellar/apache-drill/1.17.0/libexec/bin/drill-config.sh: line 144: 
> let: lineCount=: syntax error: operand expected (error token is "=")
> /usr/local/drill/drillbit.pid file is present but drillbit is not running.
> {code}
> and consequently {{drill-conf}} fails for me presently:
> {code:bash}
> $ drill-conf
> 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:178)
>       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:75)
>       at sqlline.DatabaseConnection.connect(DatabaseConnection.java:135)
>       at sqlline.DatabaseConnection.getConnection(DatabaseConnection.java:192)
>       at sqlline.Commands.connect(Commands.java:1364)
>       at sqlline.Commands.connect(Commands.java:1244)
>       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:730)
>       at sqlline.SqlLine.initArgs(SqlLine.java:410)
>       at sqlline.SqlLine.begin(SqlLine.java:515)
>       at sqlline.SqlLine.start(SqlLine.java:267)
>       at sqlline.SqlLine.main(SqlLine.java:206)
> 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:169)
>       ... 18 more
> Caused by: java.io.IOException: Failure to connect to the zookeeper cluster 
> service within the allotted time of 10000 milliseconds.
>       at 
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator.start(ZKClusterCoordinator.java:134)
>       at 
> org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:338)
>       ... 19 more
> Apache Drill 1.17.0
> "Say hello to my little Drill."
> apache drill>
> {code}
> The syntax and connection errors may be unrelated, but all this worked on 
> 1.16.0, I believe. My ZooKeeper is a minor version out-of-date which might 
> explain the connection errors, but not the syntax ones.
> {{drill-embedded}} works fine.



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