APACHE-ATLAS-2.1.0 - 【安装部署】基于CENTOS7.6.18安装APACHE-ATLAS-2.1.0

矫情吗；* 2023-10-08 15:42 109阅读 0赞

#### 官网 ####

[APACHE-ATLAS官网地址][APACHE-ATLAS]  
[APACHE-ATLAS安装指南][APACHE-ATLAS 1]

#### 说明 ####

官网说明使用：bin/atlas\_start.py 即可启动HBASE、SOLR和ATLAS，实际验证不是的；  
需要分别启动HBASE、SOLR和ATLAS，见下面的操作步骤；  
HBASE启动时，同时也启动了内置的ZK，由于SOLR也依赖ZK， 所以需要先启动HBASE。

#### 安装准备 ####

A. 关闭防火墙

systemctl stop firewalld
    systemctl disable firewalld
    systemctl status firewalld

B. 禁用Selinux(安全权限管理模块)

vi /etc/sysconfig/selinux
    设置如下：
    SELINUX=disabled

#### 操作步骤 ####

使用内嵌sorl和hbase方式进行编译和安装：

解压：tar -xzvf apache-atlas-2.1.0-server.tar.gz
    进入：cd apache-atlas-2.1.0
    启动：
    1-HBASE：hbase/bin/start-hbase.sh
    2-SOLR：solr/bin/solr start -c -z localhost:2181 -p 8983 -force
    第一次启动成功后需要执行以下，用来创建solr collection：
    # 点索引
    solr/bin/solr  create -c vertex_index -force -d conf/solr/
    
    # 线索引
    solr/bin/solr  create -c edge_index -force -d conf/solr/
    
    # 全文索引
    solr/bin/solr  create -c fulltext_index -force -d conf/solr/
    
    
    3-ATLAS：bin/atlas_start.py
    验证：curl -u admin:admin http://localhost:21000/api/atlas/admin/version
    如果返回以下内容说明启动成功:
    {
        
    	"Description": "Metadata Management and Data Governance Platform over Hadoop",
    	"Revision": "release",
    	"Version": "2.1.0",
    	"Name": "apache-atlas"
    }
    
    4-导入示例数据：bin/quick_start.py
    
    [root@hm apache-atlas-2.1.0]# bin/quick_start.py
    Enter username for atlas :- admin
    Enter password for atlas :-
    
    Creating sample types:
    Created type [DB]
    Created type [Table]
    Created type [StorageDesc]
    Created type [Column]
    Created type [LoadProcess]
    Created type [LoadProcessExecution]
    Created type [View]
    Created type [JdbcAccess]
    Created type [ETL]
    Created type [Metric]
    Created type [PII]
    Created type [Fact]
    Created type [Dimension]
    Created type [Log Data]
    Created type [Table_DB]
    Created type [View_DB]
    Created type [View_Tables]
    Created type [Table_Columns]
    Created type [Table_StorageDesc]
    
    Creating sample entities:
    Created entity of type [DB], guid: 4633f6b8-b60d-487f-b458-ad20115fd1a6
    Created entity of type [DB], guid: 0f4b75ea-28c1-4c0c-bfea-c9243ca27313
    Created entity of type [DB], guid: 6984b2c8-7d88-4410-a590-19930ce76000
    Created entity of type [Table], guid: 2fc09c49-3e9f-4ce6-b90a-28d1ad28b3e4
    Created entity of type [Table], guid: 2af85999-783d-4b9d-abd6-cbde83b6cdff
    Created entity of type [Table], guid: e228021c-8110-4b30-997f-8f8b8419678b
    Created entity of type [Table], guid: 4d84cdae-1498-4004-94cf-81ed73dca745
    Created entity of type [Table], guid: 6a8e40f7-ae2f-4291-8284-cd6e405fecdb
    Created entity of type [Table], guid: 5983d508-5f78-4a21-ae7a-0095f50cfcaf
    Created entity of type [Table], guid: 4992f76c-9626-413d-9635-fd52bf3af7ff
    Created entity of type [Table], guid: 1ca2f7f5-2fe3-4e0c-87ba-621d4abbcd5f
    Created entity of type [View], guid: b6faa4ef-6708-4ba4-9cb7-a1b0510036c0
    Created entity of type [View], guid: b5907d82-035f-4aba-a1d0-4e2937d45bb9
    Created entity of type [LoadProcess], guid: 378fc0bd-d208-4989-b9f6-f7bdc4d4900e
    Created entity of type [LoadProcessExecution], guid: f0f5fb14-aa45-4430-ba58-089a94020fb2
    Created entity of type [LoadProcessExecution], guid: 66dc91e6-f32d-4105-b12a-ba5e504c0486
    Created entity of type [LoadProcess], guid: bf1a574e-88f6-4f5f-9559-3596ced76e5f
    Created entity of type [LoadProcessExecution], guid: 55d5dd58-c1e9-44a5-aadd-7b4a6a3f18fc
    Created entity of type [LoadProcessExecution], guid: 5f3e0fbe-3372-48ca-959f-8a9e72081e9c
    Created entity of type [LoadProcess], guid: 3484f4c1-40e9-4354-a019-06136d03a67c
    Created entity of type [LoadProcessExecution], guid: a7535499-aa19-4c3e-a942-83d218439091
    Created entity of type [LoadProcessExecution], guid: 72fb5e9f-f2a0-411f-bb0d-5a8bc3436caf
    
    Sample DSL Queries:
    query [from DB] returned [3] rows.
    query [DB] returned [3] rows.
    query [DB where name=%22Reporting%22] returned [1] rows.
    query [DB where name=%22encode_db_name%22] returned [ 0 ] rows.
    query [Table where name=%2522sales_fact%2522] returned [1] rows.
    query [DB where name="Reporting"] returned [1] rows.
    query [DB where DB.name="Reporting"] returned [1] rows.
    query [DB name = "Reporting"] returned [1] rows.
    query [DB DB.name = "Reporting"] returned [1] rows.
    query [DB where name="Reporting" select name, owner] returned [1] rows.
    query [DB where DB.name="Reporting" select name, owner] returned [1] rows.
    query [DB has name] returned [3] rows.
    query [DB where DB has name] returned [3] rows.
    query [DB is JdbcAccess] returned [ 0 ] rows.
    query [from Table] returned [8] rows.
    query [Table] returned [8] rows.
    query [Table is Dimension] returned [5] rows.
    query [Column where Column isa PII] returned [3] rows.
    query [View is Dimension] returned [2] rows.
    query [Column select Column.name] returned [10] rows.
    query [Column select name] returned [9] rows.
    query [Column where Column.name="customer_id"] returned [1] rows.
    query [from Table select Table.name] returned [8] rows.
    query [DB where (name = "Reporting")] returned [1] rows.
    query [DB where DB is JdbcAccess] returned [ 0 ] rows.
    query [DB where DB has name] returned [3] rows.
    query [DB as db1 Table where (db1.name = "Reporting")] returned [ 0 ] rows.
    query [Dimension] returned [9] rows.
    query [JdbcAccess] returned [2] rows.
    query [ETL] returned [10] rows.
    query [Metric] returned [4] rows.
    query [PII] returned [3] rows.
    query [`Log Data`] returned [4] rows.
    query [Table where name="sales_fact", columns] returned [4] rows.
    query [Table where name="sales_fact", columns as column select column.name, column.dataType, column.comment] returned [4] rows.
    query [from DataSet] returned [10] rows.
    query [from Process] returned [3] rows.
    
    Sample Lineage Info:
    time_dim(Table) -> loadSalesDaily(LoadProcess)
    loadSalesDaily(LoadProcess) -> sales_fact_daily_mv(Table)
    loadSalesMonthly(LoadProcess) -> sales_fact_monthly_mv(Table)
    sales_fact_daily_mv(Table) -> loadSalesMonthly(LoadProcess)
    sales_fact(Table) -> loadSalesDaily(LoadProcess)
    Sample data added to Apache Atlas Server.
    
    [root@hm apache-atlas-2.1.0]#

#### 运维相关 ####

停止ATLAS：bin/atlas_stop.py
    查看ATLAS的日志：cat logs/application.log
    检查ZK端口: netstat -tunlp|grep 2181
    
    
    HBASE-UI(需要先查看HBASE的UI): http://192.168.139.200:16010/master-status
    SOLR-UI:  http://192.168.139.200:8983/
    ATLAS-UI: http://192.168.139.200:21000/
    口令：admin/admin

HBASE-UI:  
![在这里插入图片描述][824931196aac4e878e37ac23b17966a2.png]

SOLR-UI:  
![在这里插入图片描述][61cec60dcf27437bae3861d920ba27c9.png]

ATLAS-UI:![在这里插入图片描述][3bfd24af8f29446e844647d57ac4e77d.png]  
![在这里插入图片描述][47dd53fa923246f2af9517d0fca03df1.png]  
  
apache\_atlas\_janus：图数据存储在该表中  
apache\_atlas\_entity\_audit：实体审计数据存储在该表中

#### ATLAS配置文件说明 ####

vim conf/atlas-application.properties

#########  Graph Database Configs  #########
    
    # Graph Database 图数据库默认使用的是：JanusGraph
    
    #Configures the graph database to use.  Defaults to JanusGraph
    #atlas.graphdb.backend=org.apache.atlas.repository.graphdb.janus.AtlasJanusGraphDatabase
    
    # Graph Storage 图数据可以存储在hbase、cassandra、embeddedcassandra和berkeleyje中，当前存储在hbase中
    # Set atlas.graph.storage.backend to the correct value for your desired storage
    # backend. Possible values:
    #
    # hbase
    # cassandra
    # embeddedcassandra - Should only be set by building Atlas with  -Pdist,embedded-cassandra-solr
    # berkeleyje
    #
    # See the configuration documentation for more information about configuring the various  storage backends.
    #
    atlas.graph.storage.backend=hbase2
    atlas.graph.storage.hbase.table=apache_atlas_janus
    
    #Hbase
    #For standalone mode , specify localhost
    #for distributed mode, specify zookeeper quorum here
    atlas.graph.storage.hostname=localhost
    atlas.graph.storage.hbase.regions-per-server=1
    atlas.graph.storage.lock.wait-time=10000
    
    # Gremlin Query Optimizer
    #
    # Enables rewriting gremlin queries to maximize performance. This flag is provided as
    # a possible way to work around any defects that are found in the optimizer until they
    # are resolved.
    #atlas.query.gremlinOptimizerEnabled=true
    
    # Delete handler
    #
    # This allows the default behavior of doing "soft" deletes to be changed.
    #
    # Allowed Values:
    # org.apache.atlas.repository.store.graph.v1.SoftDeleteHandlerV1 - all deletes are "soft" deletes
    # org.apache.atlas.repository.store.graph.v1.HardDeleteHandlerV1 - all deletes are "hard" deletes
    #
    #atlas.DeleteHandlerV1.impl=org.apache.atlas.repository.store.graph.v1.SoftDeleteHandlerV1
    
    # Entity audit repository
    #
    # This allows the default behavior of logging entity changes to hbase to be changed.
    #
    # Allowed Values:
    # org.apache.atlas.repository.audit.HBaseBasedAuditRepository - log entity changes to hbase
    # org.apache.atlas.repository.audit.CassandraBasedAuditRepository - log entity changes to cassandra
    # org.apache.atlas.repository.audit.NoopEntityAuditRepository - disable the audit repository
    #
    atlas.EntityAuditRepository.impl=org.apache.atlas.repository.audit.HBaseBasedAuditRepository
    
    # if Cassandra is used as a backend for audit from the above property, uncomment and set the following
    # properties appropriately. If using the embedded cassandra profile, these properties can remain
    # commented out.
    # atlas.EntityAuditRepository.keyspace=atlas_audit
    # atlas.EntityAuditRepository.replicationFactor=1
    
    
    # Graph Search Index 使用SOLR创建索引
    atlas.graph.index.search.backend=solr
    
    #Solr
    #Solr cloud mode properties
    atlas.graph.index.search.solr.mode=cloud
    atlas.graph.index.search.solr.zookeeper-url=localhost:2181
    atlas.graph.index.search.solr.zookeeper-connect-timeout=60000
    atlas.graph.index.search.solr.zookeeper-session-timeout=60000
    atlas.graph.index.search.solr.wait-searcher=true
    
    #Solr http mode properties
    #atlas.graph.index.search.solr.mode=http
    #atlas.graph.index.search.solr.http-urls=http://localhost:8983/solr
    
    # Solr-specific configuration property
    atlas.graph.index.search.max-result-set-size=150
    
    #########  Import Configs  #########
    #atlas.import.temp.directory=/temp/import
    
    #########  Notification Configs  #########
    atlas.notification.embedded=true
    atlas.kafka.data=${sys:atlas.home}/data/kafka
    atlas.kafka.zookeeper.connect=localhost:9026
    atlas.kafka.bootstrap.servers=localhost:9027
    atlas.kafka.zookeeper.session.timeout.ms=400
    atlas.kafka.zookeeper.connection.timeout.ms=200
    atlas.kafka.zookeeper.sync.time.ms=20
    atlas.kafka.auto.commit.interval.ms=1000
    atlas.kafka.hook.group.id=atlas
    
    atlas.kafka.enable.auto.commit=false
    atlas.kafka.auto.offset.reset=earliest
    atlas.kafka.session.timeout.ms=30000
    atlas.kafka.offsets.topic.replication.factor=1
    atlas.kafka.poll.timeout.ms=1000
    
    atlas.notification.create.topics=true
    atlas.notification.replicas=1
    atlas.notification.topics=ATLAS_HOOK,ATLAS_ENTITIES
    atlas.notification.log.failed.messages=true
    atlas.notification.consumer.retry.interval=500
    atlas.notification.hook.retry.interval=1000
    # Enable for Kerberized Kafka clusters
    #atlas.notification.kafka.service.principal=kafka/_HOST@EXAMPLE.COM
    #atlas.notification.kafka.keytab.location=/etc/security/keytabs/kafka.service.keytab
    
    ## Server port configuration
    #atlas.server.http.port=21000
    #atlas.server.https.port=21443
    
    #########  Security Properties  #########
    
    # SSL config
    atlas.enableTLS=false
    
    #truststore.file=/path/to/truststore.jks
    #cert.stores.credential.provider.path=jceks://file/path/to/credentialstore.jceks
    
    #following only required for 2-way SSL
    #keystore.file=/path/to/keystore.jks
    
    # Authentication config
    
    atlas.authentication.method.kerberos=false
    atlas.authentication.method.file=true
    
    #### ldap.type= LDAP or AD
    atlas.authentication.method.ldap.type=none
    
    #### user credentials file
    atlas.authentication.method.file.filename=${sys:atlas.home}/conf/users-credentials.properties
    
    ### groups from UGI
    #atlas.authentication.method.ldap.ugi-groups=true
    
    ######## LDAP properties #########
    #atlas.authentication.method.ldap.url=ldap://<ldap server url>:389
    #atlas.authentication.method.ldap.userDNpattern=uid={0},ou=People,dc=example,dc=com
    #atlas.authentication.method.ldap.groupSearchBase=dc=example,dc=com
    #atlas.authentication.method.ldap.groupSearchFilter=(member=uid={0},ou=Users,dc=example,dc=com)
    #atlas.authentication.method.ldap.groupRoleAttribute=cn
    #atlas.authentication.method.ldap.base.dn=dc=example,dc=com
    #atlas.authentication.method.ldap.bind.dn=cn=Manager,dc=example,dc=com
    #atlas.authentication.method.ldap.bind.password=<password>
    #atlas.authentication.method.ldap.referral=ignore
    #atlas.authentication.method.ldap.user.searchfilter=(uid={0})
    #atlas.authentication.method.ldap.default.role=<default role>
    
    
    ######### Active directory properties #######
    #atlas.authentication.method.ldap.ad.domain=example.com
    #atlas.authentication.method.ldap.ad.url=ldap://<AD server url>:389
    #atlas.authentication.method.ldap.ad.base.dn=(sAMAccountName={0})
    #atlas.authentication.method.ldap.ad.bind.dn=CN=team,CN=Users,DC=example,DC=com
    #atlas.authentication.method.ldap.ad.bind.password=<password>
    #atlas.authentication.method.ldap.ad.referral=ignore
    #atlas.authentication.method.ldap.ad.user.searchfilter=(sAMAccountName={0})
    #atlas.authentication.method.ldap.ad.default.role=<default role>
    
    #########  JAAS Configuration ########
    
    #atlas.jaas.KafkaClient.loginModuleName = com.sun.security.auth.module.Krb5LoginModule
    #atlas.jaas.KafkaClient.loginModuleControlFlag = required
    #atlas.jaas.KafkaClient.option.useKeyTab = true
    #atlas.jaas.KafkaClient.option.storeKey = true
    #atlas.jaas.KafkaClient.option.serviceName = kafka
    #atlas.jaas.KafkaClient.option.keyTab = /etc/security/keytabs/atlas.service.keytab
    #atlas.jaas.KafkaClient.option.principal = atlas/_HOST@EXAMPLE.COM
    
    #########  Server Properties  #########
    atlas.rest.address=http://localhost:21000
    # If enabled and set to true, this will run setup steps when the server starts
    #atlas.server.run.setup.on.start=false
    
    #########  Entity Audit Configs  #########
    atlas.audit.hbase.tablename=apache_atlas_entity_audit
    atlas.audit.zookeeper.session.timeout.ms=1000
    atlas.audit.hbase.zookeeper.quorum=localhost:2181
    
    #########  High Availability Configuration ########
    atlas.server.ha.enabled=false
    #### Enabled the configs below as per need if HA is enabled #####
    #atlas.server.ids=id1
    #atlas.server.address.id1=localhost:21000
    #atlas.server.ha.zookeeper.connect=localhost:2181
    #atlas.server.ha.zookeeper.retry.sleeptime.ms=1000
    #atlas.server.ha.zookeeper.num.retries=3
    #atlas.server.ha.zookeeper.session.timeout.ms=20000
    ## if ACLs need to be set on the created nodes, uncomment these lines and set the values ##
    #atlas.server.ha.zookeeper.acl=<scheme>:<id>
    #atlas.server.ha.zookeeper.auth=<scheme>:<authinfo>
    
    
    
    ######### Atlas Authorization #########
    atlas.authorizer.impl=simple
    atlas.authorizer.simple.authz.policy.file=atlas-simple-authz-policy.json
    
    #########  Type Cache Implementation ########
    # A type cache class which implements
    # org.apache.atlas.typesystem.types.cache.TypeCache.
    # The default implementation is org.apache.atlas.typesystem.types.cache.DefaultTypeCache which is a local in-memory type cache.
    #atlas.TypeCache.impl=
    
    #########  Performance Configs  #########
    #atlas.graph.storage.lock.retries=10
    #atlas.graph.storage.cache.db-cache-time=120000
    
    #########  CSRF Configs  #########
    atlas.rest-csrf.enabled=true
    atlas.rest-csrf.browser-useragents-regex=^Mozilla.*,^Opera.*,^Chrome.*
    atlas.rest-csrf.methods-to-ignore=GET,OPTIONS,HEAD,TRACE
    atlas.rest-csrf.custom-header=X-XSRF-HEADER
    
    ############ KNOX Configs ################
    #atlas.sso.knox.browser.useragent=Mozilla,Chrome,Opera
    #atlas.sso.knox.enabled=true
    #atlas.sso.knox.providerurl=https://<knox gateway ip>:8443/gateway/knoxsso/api/v1/websso
    #atlas.sso.knox.publicKey=
    
    ############ Atlas Metric/Stats configs ################
    # Format: atlas.metric.query.<key>.<name>
    atlas.metric.query.cache.ttlInSecs=900
    #atlas.metric.query.general.typeCount=
    #atlas.metric.query.general.typeUnusedCount=
    #atlas.metric.query.general.entityCount=
    #atlas.metric.query.general.tagCount=
    #atlas.metric.query.general.entityDeleted=
    #
    #atlas.metric.query.entity.typeEntities=
    #atlas.metric.query.entity.entityTagged=
    #
    #atlas.metric.query.tags.entityTags=
    
    #########  Compiled Query Cache Configuration  #########
    
    # The size of the compiled query cache.  Older queries will be evicted from the cache
    # when we reach the capacity.
    
    #atlas.CompiledQueryCache.capacity=1000
    
    # Allows notifications when items are evicted from the compiled query
    # cache because it has become full.  A warning will be issued when
    # the specified number of evictions have occurred.  If the eviction
    # warning threshold <= 0, no eviction warnings will be issued.
    
    #atlas.CompiledQueryCache.evictionWarningThrottle=0
    
    
    #########  Full Text Search Configuration  #########
    
    #Set to false to disable full text search.
    #atlas.search.fulltext.enable=true
    
    #########  Gremlin Search Configuration  #########
    
    #Set to false to disable gremlin search.
    atlas.search.gremlin.enable=false
    
    
    ########## Add http headers ###########
    
    #atlas.headers.Access-Control-Allow-Origin=*
    #atlas.headers.Access-Control-Allow-Methods=GET,OPTIONS,HEAD,PUT,POST
    #atlas.headers.<headerName>=<headerValue>
    
    
    #########  UI Configuration ########
    
    atlas.ui.default.version=v1

#### ATLAS输出DEBUG日志 ####

需要修改apache-atlas-2.1.0/conf/atlas-log4j.xml三个地方，将这三处的"info" 修改为：“debug”。

<logger name="org.apache.atlas" additivity="false">
        <level value="debug"/>
        <appender-ref ref="FILE"/>
    </logger>
    
    <logger name="org.janusgraph" additivity="false">
        <level value="debug"/>
        <appender-ref ref="FILE"/>
    </logger>
    
    <root>
        <priority value="debug"/>
        <appender-ref ref="FILE"/>
    </root>

#### 安装错误 ####

①. Your open file limit is currently 1024.  
错误描述如下：

*** [WARN] *** Your open file limit is currently 1024.
       It should be set to 65000 to avoid operational disruption.
       If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh
      *** [WARN] ***  Your Max Processes Limit is currently 31117.
       It should be set to 65000 to avoid operational disruption.
       If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh
      WARNING: Starting Solr as the root user is a security risk and not considered best practice. Exiting.
               Please consult the Reference Guide. To override this check, start with argument '-force'

解决方案如下：

sudo vim /etc/security/limits.conf
    增加以下内容(有前面的*号)：
    * hard nofile 65535
    * soft nofile 65535
    * hard nproc 65535
    * soft nproc 65535

②. Java HotSpot™ 64-Bit Server VM warning: INFO: os::commit\_memory(0x0000000560800000, 10737418240, 0) failed; error=‘Cannot allocate memory’ (errno=12)  
表示服务器上物理内存太小，需要调大内存。

③. Failed to obtain graph instance on attempt 1 of 3  
一般情况是由于HBASE和SOLR未启动导致，应该分别手动执行: HBASE、SOLR和ATLAS的启动脚本启动对应的服务。

④. ATLAS UI页面出现503错误  
一般情况是由于HBASE和SOLR未启动导致，首先：可以先看看SOLR的UI是否可以访问，如果能够访问，需要查看SOLR页面，cloud模式是否有vertex\_index、edge\_index、fulltext\_index这三个collection；然后检查HBASE是否有ATLAS的信息表，可在HBASE的节点上执行hbase shell，然后list查看一下是否有相应的表。

#### 如何查看内置HBASE的WEB的端口？ ####

切换到日志目录下：
    cd /opt/software/apache-atlas-2.1.0/hbase/logs
    执行查看端口的指令：
    grep 'Jetty' *

![在这里插入图片描述][131e39621ec5455197c83649987a9a76.png]

#### 启动ATLAS时为什么一直报连不上ZK？ ####

注意：当ATLAS没有完全启动的话，会报一直连不上ZK，由于电脑配置太低，所以一直ATLAS的启动相当慢，等了10分钟才启动完毕。

2023-05-19 01:04:15,055 WARN  - [main-SendThread(localhost:9026):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102)
    java.net.ConnectException: 拒绝连接
            at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
            at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
            at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
            at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
    2023-05-19 01:04:16,155 WARN  - [main-SendThread(localhost:9026):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102)
    java.net.ConnectException: 拒绝连接
            at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
            at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
            at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
            at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
    2023-05-19 01:04:17,257 WARN  - [main-SendThread(localhost:9026):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102)
    java.net.ConnectException: 拒绝连接
            at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
            at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
            at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
            at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
    2023-05-19 01:04:18,358 WARN  - [main-SendThread(localhost:9026):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102)
    java.net.ConnectException: 拒绝连接
            at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
            at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
            at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
            at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
    2023-05-19 01:04:19,459 WARN  - [main-SendThread(localhost:9026):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102)
    java.net.ConnectException: 拒绝连接
            at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
            at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
            at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
            at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)

[APACHE-ATLAS]: https://atlas.apache.org/
[APACHE-ATLAS 1]: https://atlas.apache.org/#/Installation
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