我以root用户的身份安装了Postgres SQL，并为其创build了用户数据库。 我试图通过Linux Redhat系统从非root帐户访问数据库。 我安装的软件要求您连接数据库，并在网页中输出。 当我从非root用户运行shell脚本时，我安装了这个软件，它提供了以下输出：
Traceback (most recent call last): File "/illumina/apps/galaxy/galaxy-dist/lib/galaxy/webapps/galaxy/buildapp.py", line 35, in app_factory app = UniverseApplication( global_conf = global_conf, **kwargs ) File "/illumina/apps/galaxy/galaxy-dist/lib/galaxy/app.py", line 51, in __init__ create_or_verify_database( db_url, kwargs.get( 'global_conf', {} ).get( '__file__', None ), self.config.database_engine_options, app=self ) File "/illumina/apps/galaxy/galaxy-dist/lib/galaxy/model/migrate/check.py", line 50, in create_or_verify_database dataset_table = Table( "dataset", meta, autoload=True ) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/schema.py", line 108, in __call__ return type.__call__(self, name, metadata, *args, **kwargs) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/schema.py", line 236, in __init__ _bind_or_error(metadata).reflecttable(self, include_columns=include_columns) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/engine/base.py", line 1261, in reflecttable conn = self.contextual_connect() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/engine/threadlocal.py", line 194, in contextual_connect return self.session.get_connection(**kwargs) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/engine/threadlocal.py", line 20, in get_connection return self.engine.TLConnection(self, self.engine.pool.connect(), close_with_result=close_with_result) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 151, in connect agent = _ConnectionFairy(self) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 304, in __init__ rec = self._connection_record = pool.get() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 161, in get return self.do_get() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 639, in do_get con = self.create_connection() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 122, in create_connection return _ConnectionRecord(self) File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 198, in __init__ self.connection = self.__connect() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/pool.py", line 261, in __connect connection = self.__pool._creator() File "/illumina/apps/galaxy/galaxy-dist/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/engine/strategies.py", line 80, in connect raise exc.DBAPIError.instance(None, None, e) OperationalError: (OperationalError) FATAL: Ident authentication failed for user "galaxy" None None 请帮我找出哪个是正确的：
感谢Sridhar
OperationalError: (OperationalError) FATAL: Ident authentication failed for user "galaxy" None None
表示它试图以用户“galaxy”的身份连接。 检查你是否能够做到以下几点