legendtkl opened a new issue #1164:
URL: https://github.com/apache/incubator-linkis/issues/1164
**Describe the bug**
When the env 'KERBEROS_ENABLE' is not set, we will encounter the following
Exception when we submit job.
```
2021-12-07 20:14:55.014 ERROR Task is Failed,errorMsg: errCode: 12003 ,desc:
xxx:9101_0 Failed to async get EngineNode RMErrorException: errCode: 11006
,desc: Failed to request external resourceClassCastException: java.lang.String
cannot be cast to java.lang.Boolean ,ip: xxx ,port: 9101 ,serviceKind:
linkis-cg-linkismanager ,ip: xxx ,port: 9104 ,serviceKind: linkis-cg-entrance
```
(IP hided)
**Root Cause**
`install.sh` will override the SQL `linkis_dml.sql` when the env
'KERBEROS_ENABLE' is set. But it will leave it there when the env
is not set.
**How to fix**
modify the `install.sh` as follow, namely, set it to false when the env is
absent.
```
if [ "$KERBEROS_ENABLE" != "" ]
then
sed -i ${txt} "s#@KERBEROS_ENABLE#$KERBEROS_ENABLE#g"
$LINKIS_HOME/db/linkis_dml.sql
sed -i ${txt} "s#@PRINCIPAL_NAME#$PRINCIPAL_NAME#g"
$LINKIS_HOME/db/linkis_dml.sql
sed -i ${txt} "s#@KEYTAB_PATH#$KEYTAB_PATH#g"
$LINKIS_HOME/db/linkis_dml.sql
sed -i ${txt} "s#@KRB5_PATH#$KRB5_PATH#g" $LINKIS_HOME/db/linkis_dml.sql
else
sed -i ${txt} "s#@KERBEROS_ENABLE#false#g" $LINKIS_HOME/db/linkis_dml.sql
fi
```
I will submit a PR to fix this.
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