回复:【flink sql-client 读写 Kerberos认证的hive】

2021-03-08 文章 guoyb
好的,谢谢!



---原始邮件---
发件人: "Rui Li"https://issues.apache.org/jira/browse/FLINK-20913
 有关了,这个issue是1.12.2修复的,可以升级一下试试。

On Mon, Mar 8, 2021 at 2:15 PM guoyb <861277...@qq.com> wrote:

> 您好!
> hive.metastore.sasl.enabled 是true
>
>
> 启动sql client的时候,可以正常读取到认证信息,并读取metastore的表名。
>
>
> 读和写,认证就失败了。
>
>
>
> ---原始邮件---
> 发件人: "Rui Li"

Re: 【flink sql-client 读写 Kerberos认证的hive】

2021-03-08 文章 Rui Li
那应该就是跟https://issues.apache.org/jira/browse/FLINK-20913
 有关了,这个issue是1.12.2修复的,可以升级一下试试。

On Mon, Mar 8, 2021 at 2:15 PM guoyb <861277...@qq.com> wrote:

> 您好!
> hive.metastore.sasl.enabled 是true
>
>
> 启动sql client的时候,可以正常读取到认证信息,并读取metastore的表名。
>
>
> 读和写,认证就失败了。
>
>
>
> ---原始邮件---
> 发件人: "Rui Li" 发送时间: 2021年3月8日(周一) 中午12:12
> 收件人: "user-zh" 主题: Re: 【flink sql-client 读写 Kerberos认证的hive】
>
>
> Hi,
>
>
> 从你发的stacktrace来看,走到了set_ugi方法说明client认为server没有开启kerberos。确认一下你HiveCatalog这边指定的hive-site.xml是否配置正确呢,像hive.metastore.sasl.enabled是不是设置成true了?
>
> On Sun, Mar 7, 2021 at 5:49 PM 861277...@qq.com <861277...@qq.com>
> wrote:
>
> > 环境:
> > flink1.12.1&nbsp;
> > hive2.1.0
> > CDH6.2.0
> >
> >
> > 【问题描述】
> > &nbsp;在没开启Kerberos认证时,可以正常读写hive表
> > &nbsp;
> > &nbsp;开启Kerberos认证后,
> > &nbsp;启动时可以正常读取到hive metastore的元数据信息,读写不了表。
> >
> >
> > 【sql-client.sh embedded】
> > Flink SQL&gt; show tables;
> > dimension_table
> > dimension_table1
> > test
> >
> >
> > Flink SQL&gt; select * from test;
> > [ERROR] Could not execute SQL statement. Reason:
> > org.apache.flink.connectors.hive.FlinkHiveException: Failed to
> collect all
> > partitions from hive metaStore
> >
> >
> > 【完整日志
> >
> /opt/cloudera/parcels/FLINK-1.12.1-BIN-SCALA_2.11/lib/flink/log/flink-root-sql-client-cdh6.com.log】
> >
> > 2021-03-07 10:29:18.776 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Trying to connect to localhost/127.0.0.1:6123
> > 2021-03-07 10:29:18.777 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
> > refused (Connection refused)
> > 2021-03-07 10:29:18.778 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/127.0.0.1': Connection refused
> > (Connection refused)
> > 2021-03-07 10:29:18.778 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address
> '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> > Network is unreachable (connect failed)
> > 2021-03-07 10:29:18.778 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/192.168.31.10': Connection refused
> > (Connection refused)
> > 2021-03-07 10:29:18.779 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> > unreachable (connect failed)
> > 2021-03-07 10:29:18.779 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/127.0.0.1': Connection refused
> > (Connection refused)
> > 2021-03-07 10:29:18.779 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address
> '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> > Network is unreachable (connect failed)
> > 2021-03-07 10:29:18.779 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/192.168.31.10': Connection refused
> > (Connection refused)
> > 2021-03-07 10:29:18.780 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> > unreachable (connect failed)
> > 2021-03-07 10:29:18.780 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/127.0.0.1': Connection refused
> > (Connection refused)
> > 2021-03-07 10:29:18.780 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Could not connect. Waiting for 1600 msecs before next attempt
> > 2021-03-07 10:29:20.381 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Trying to connect to localhost/127.0.0.1:6123
> > 2021-03-07 10:29:20.381 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
> > refused (Connection refused)
> > 2021-03-07 10:29:20.382 [main] INFO&nbsp;
> org.apache.flink.runtime.net.ConnectionUtils&nbsp;
> > - Failed to connect from address '/127

回复:【flink sql-client 读写 Kerberos认证的hive】

2021-03-07 文章 guoyb
您好!
hive.metastore.sasl.enabled 是true


启动sql client的时候,可以正常读取到认证信息,并读取metastore的表名。


读和写,认证就失败了。



---原始邮件---
发件人: "Rui Li"

Re: 【flink sql-client 读写 Kerberos认证的hive】

2021-03-07 文章 Rui Li
也可能是需要这个fix:https://issues.apache.org/jira/browse/FLINK-20913

On Mon, Mar 8, 2021 at 12:11 PM Rui Li  wrote:

> Hi,
>
>
> 从你发的stacktrace来看,走到了set_ugi方法说明client认为server没有开启kerberos。确认一下你HiveCatalog这边指定的hive-site.xml是否配置正确呢,像hive.metastore.sasl.enabled是不是设置成true了?
>
> On Sun, Mar 7, 2021 at 5:49 PM 861277...@qq.com <861277...@qq.com> wrote:
>
>> 环境:
>> flink1.12.1 
>> hive2.1.0
>> CDH6.2.0
>>
>>
>> 【问题描述】
>>  在没开启Kerberos认证时,可以正常读写hive表
>>  
>>  开启Kerberos认证后,
>>  启动时可以正常读取到hive metastore的元数据信息,读写不了表。
>>
>>
>> 【sql-client.sh embedded】
>> Flink SQL> show tables;
>> dimension_table
>> dimension_table1
>> test
>>
>>
>> Flink SQL> select * from test;
>> [ERROR] Could not execute SQL statement. Reason:
>> org.apache.flink.connectors.hive.FlinkHiveException: Failed to collect
>> all partitions from hive metaStore
>>
>>
>> 【完整日志
>> /opt/cloudera/parcels/FLINK-1.12.1-BIN-SCALA_2.11/lib/flink/log/flink-root-sql-client-cdh6.com.log】
>>
>> 2021-03-07 10:29:18.776 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Trying to connect to localhost/127.0.0.1:6123
>> 2021-03-07 10:29:18.777 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
>> refused (Connection refused)
>> 2021-03-07 10:29:18.778 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/127.0.0.1': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:18.778 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
>> Network is unreachable (connect failed)
>> 2021-03-07 10:29:18.778 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/192.168.31.10': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:18.779 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
>> unreachable (connect failed)
>> 2021-03-07 10:29:18.779 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/127.0.0.1': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:18.779 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
>> Network is unreachable (connect failed)
>> 2021-03-07 10:29:18.779 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/192.168.31.10': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:18.780 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
>> unreachable (connect failed)
>> 2021-03-07 10:29:18.780 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/127.0.0.1': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:18.780 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Could not connect. Waiting for 1600 msecs before next attempt
>> 2021-03-07 10:29:20.381 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Trying to connect to localhost/127.0.0.1:6123
>> 2021-03-07 10:29:20.381 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
>> refused (Connection refused)
>> 2021-03-07 10:29:20.382 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/127.0.0.1': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:20.383 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
>> Network is unreachable (connect failed)
>> 2021-03-07 10:29:20.383 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/192.168.31.10': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:20.383 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
>> unreachable (connect failed)
>> 2021-03-07 10:29:20.383 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/127.0.0.1': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:20.384 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
>> Network is unreachable (connect failed)
>> 2021-03-07 10:29:20.384 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/192.168.31.10': Connection refused
>> (Connection refused)
>> 2021-03-07 10:29:20.384 [main] INFO  
>> org.apache.flink.runtime.net.ConnectionUtils 
>> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network

Re: 【flink sql-client 读写 Kerberos认证的hive】

2021-03-07 文章 Rui Li
Hi,

从你发的stacktrace来看,走到了set_ugi方法说明client认为server没有开启kerberos。确认一下你HiveCatalog这边指定的hive-site.xml是否配置正确呢,像hive.metastore.sasl.enabled是不是设置成true了?

On Sun, Mar 7, 2021 at 5:49 PM 861277...@qq.com <861277...@qq.com> wrote:

> 环境:
> flink1.12.1 
> hive2.1.0
> CDH6.2.0
>
>
> 【问题描述】
>  在没开启Kerberos认证时,可以正常读写hive表
>  
>  开启Kerberos认证后,
>  启动时可以正常读取到hive metastore的元数据信息,读写不了表。
>
>
> 【sql-client.sh embedded】
> Flink SQL> show tables;
> dimension_table
> dimension_table1
> test
>
>
> Flink SQL> select * from test;
> [ERROR] Could not execute SQL statement. Reason:
> org.apache.flink.connectors.hive.FlinkHiveException: Failed to collect all
> partitions from hive metaStore
>
>
> 【完整日志
> /opt/cloudera/parcels/FLINK-1.12.1-BIN-SCALA_2.11/lib/flink/log/flink-root-sql-client-cdh6.com.log】
>
> 2021-03-07 10:29:18.776 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Trying to connect to localhost/127.0.0.1:6123
> 2021-03-07 10:29:18.777 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
> refused (Connection refused)
> 2021-03-07 10:29:18.778 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:18.778 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> Network is unreachable (connect failed)
> 2021-03-07 10:29:18.778 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/192.168.31.10': Connection refused
> (Connection refused)
> 2021-03-07 10:29:18.779 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> unreachable (connect failed)
> 2021-03-07 10:29:18.779 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:18.779 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> Network is unreachable (connect failed)
> 2021-03-07 10:29:18.779 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/192.168.31.10': Connection refused
> (Connection refused)
> 2021-03-07 10:29:18.780 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> unreachable (connect failed)
> 2021-03-07 10:29:18.780 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:18.780 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Could not connect. Waiting for 1600 msecs before next attempt
> 2021-03-07 10:29:20.381 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Trying to connect to localhost/127.0.0.1:6123
> 2021-03-07 10:29:20.381 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address 'cdh6.com/192.168.31.10': Connection
> refused (Connection refused)
> 2021-03-07 10:29:20.382 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:20.383 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> Network is unreachable (connect failed)
> 2021-03-07 10:29:20.383 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/192.168.31.10': Connection refused
> (Connection refused)
> 2021-03-07 10:29:20.383 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> unreachable (connect failed)
> 2021-03-07 10:29:20.383 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:20.384 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33':
> Network is unreachable (connect failed)
> 2021-03-07 10:29:20.384 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/192.168.31.10': Connection refused
> (Connection refused)
> 2021-03-07 10:29:20.384 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/0:0:0:0:0:0:0:1%lo': Network is
> unreachable (connect failed)
> 2021-03-07 10:29:20.385 [main] INFO  
> org.apache.flink.runtime.net.ConnectionUtils 
> - Failed to connect from address '/127.0.0.1': Connection refused
> (Connection refused)
> 2021-03-07 10:29:20

【flink sql-client 读写 Kerberos认证的hive】

2021-03-07 文章 861277...@qq.com
环境:
flink1.12.1 
hive2.1.0
CDH6.2.0


【问题描述】
 在没开启Kerberos认证时,可以正常读写hive表
 
 开启Kerberos认证后,
 启动时可以正常读取到hive metastore的元数据信息,读写不了表。


【sql-client.sh embedded】
Flink SQL> show tables;
dimension_table
dimension_table1
test


Flink SQL> select * from test;
[ERROR] Could not execute SQL statement. Reason:
org.apache.flink.connectors.hive.FlinkHiveException: Failed to collect all 
partitions from hive metaStore


【完整日志 
/opt/cloudera/parcels/FLINK-1.12.1-BIN-SCALA_2.11/lib/flink/log/flink-root-sql-client-cdh6.com.log】

2021-03-07 10:29:18.776 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Trying to connect to 
localhost/127.0.0.1:6123
2021-03-07 10:29:18.777 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address 'cdh6.com/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:18.778 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:18.778 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33': Network is unreachable (connect 
failed)
2021-03-07 10:29:18.778 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:18.779 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/0:0:0:0:0:0:0:1%lo': Network is unreachable (connect failed)
2021-03-07 10:29:18.779 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:18.779 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33': Network is unreachable (connect 
failed)
2021-03-07 10:29:18.779 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:18.780 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/0:0:0:0:0:0:0:1%lo': Network is unreachable (connect failed)
2021-03-07 10:29:18.780 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:18.780 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Could not connect. Waiting 
for 1600 msecs before next attempt
2021-03-07 10:29:20.381 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Trying to connect to 
localhost/127.0.0.1:6123
2021-03-07 10:29:20.381 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address 'cdh6.com/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:20.382 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:20.383 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33': Network is unreachable (connect 
failed)
2021-03-07 10:29:20.383 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:20.383 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/0:0:0:0:0:0:0:1%lo': Network is unreachable (connect failed)
2021-03-07 10:29:20.383 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:20.384 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/fe80:0:0:0:20c:29ff:fea1:6d6b%ens33': Network is unreachable (connect 
failed)
2021-03-07 10:29:20.384 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/192.168.31.10': Connection refused (Connection refused)
2021-03-07 10:29:20.384 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/0:0:0:0:0:0:0:1%lo': Network is unreachable (connect failed)
2021-03-07 10:29:20.385 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address '/127.0.0.1': Connection refused (Connection refused)
2021-03-07 10:29:20.385 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Could not connect. Waiting 
for 1829 msecs before next attempt
2021-03-07 10:29:22.214 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Trying to connect to 
localhost/127.0.0.1:6123
2021-03-07 10:29:22.215 [main] INFO  
org.apache.flink.runtime.net.ConnectionUtils  - Failed to connect from 
address 'cdh6.com/192.168.31.10': Connection refu