DB2 SQL6048N 在 START 或 STOP DATABASE MANAGER 处理期间发生通讯错误(1/2)

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DB2 SQL6048N 在 START 或 STOP DATABASE MANAGER 处理期间发生通讯错误  问题解决办法记录

按照下面方法处理解决

引用官方文档

How to solve db2start error SQL6048N

Technote (troubleshooting)

Problem(Abstract)

SQL6048N A communication error occurred during START or STOP DATABASE MANAGER processing.

Symptom

When trying to start an instance using the db2start command, the following error is received.

SQL6048N A communication error occurred during START or STOP DATABASE MANAGER processing.

Cause

The examples are shown below :
1. Your system might have a different hostname than the hostname listed in /sqllib/db2nodes.cfg
2.Your system might have a problem with rsh daemon.

Environment

DB2? V9.1, V9.5 and V9.7 on Linux? or UNIX? environments

Diagnosing the problem

1. Execute the hostname command and compare the output with the hostname listed in <INSTANCE_HOME>/sqllib/db2nodes.cfg

2. Login as a instance user and run the following command. 

$ db2_all "echo OK"
rshd: 0826-813 Permission is denied.
rshd: 0826-813 Permission is denied.

Run the the following command to display related information:

Resolving the problem

Resolve the problem using one of these solutions: