- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
我有一个本地托管的 Keycloak 服务器,我可以在本地启动并运行 PostgreSQL。但是,当我配置相同的数据源属性以使用云托管数据库服务(我使用 Compose PostgreSQL :https://www.compose.com/postgresql)时,它给了我 TimeoutException。
然而,Keycloak 能够通过正确执行 liquibase 来设置表。
以下是堆栈跟踪中的一些突出显示的错误消息。
java.util.concurrent.TimeoutException
Connection is not associated with a managed connection
IJ000470: You are trying to use a connection factory that has been shut down
<subsystem xmlns="urn:jboss:domain:datasources:4.0">
<datasources>
<datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">
<connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
<driver>h2</driver>
<security>
<user-name>sa</user-name>
<password>sa</password>
</security>
</datasource>
<datasource jndi-name="java:jboss/datasources/KeycloakDS" pool-name="KeycloakDS" enabled="true" use-java-context="true">
<connection-url>jdbc:postgresql://<<HOST>>/keycloak_test</connection-url>
<driver>postgresql</driver>
<security>
<user-name></user-name>
<password></password>
</security>
</datasource>
<drivers>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
<driver name="postgresql" module="org.postgresql">
<xa-datasource-class>org.postgresql.xa.PGXADataSource</xa-datasource-class>
</driver>
<driver name="mysql" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
</subsystem>
16:36:16,453 INFO [org.hibernate.dialect.Dialect] (ServerService Thread Pool -- 48) HHH000400: Using dialect: org.hibernate.dialect.PostgreSQL94Dialect
16:37:39,541 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0348: Timeout after [300] seconds waiting for service container stability. Operation will roll back. Step that first updated the service container was 'add' at address '[
("core-service" => "management"),
("management-interface" => "http-interface")
]'
16:37:41,911 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:14dcca52:58de374f:c in state RUN
16:37:41,913 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 0) ARJUNA012121: TransactionReaper::doCancellations worker Thread[Transaction Reaper Worker 0,5,main] successfully canceled TX 0:ffff7f000001:14dcca52:58de374f:c
////
16:37:49,555 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0190: Step handler org.jboss.as.domain.management.security.SecurityRealmAddHandler$ServiceInstallStepHandler@3e01ebb3 for operation {"address" => [("core-service" => "management"),("security-realm" => "ApplicationRealm")],"operation" => "add","map-groups-to-roles" => undefined} at address [
("core-service" => "management"),
("security-realm" => "ApplicationRealm")
] failed handling operation rollback -- java.util.concurrent.TimeoutException: java.util.concurrent.TimeoutException
at org.jboss.as.controller.OperationContextImpl.waitForRemovals(OperationContextImpl.java:511)
at org.jboss.as.controller.AbstractOperationContext$Step.handleResult(AbstractOperationContext.java:1369)
at org.jboss.as.controller.AbstractOperationContext$Step.finalizeInternal(AbstractOperationContext.java:1328)
at org.jboss.as.controller.AbstractOperationContext$Step.finalizeStep(AbstractOperationContext.java:1311)
at org.jboss.as.controller.AbstractOperationContext$Step.access$300(AbstractOperationContext.java:1185)
at org.jboss.as.controller.AbstractOperationContext.executeResultHandlerPhase(AbstractOperationContext.java:767)
at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:644)
at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)
at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1344)
at org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:485)
at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:387)
at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:349)
at org.jboss.as.server.ServerService.boot(ServerService.java:392)
at org.jboss.as.server.ServerService.boot(ServerService.java:365)
at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:299)
at java.lang.Thread.run(Thread.java:745)
////
16:37:59,560 ERROR [org.jboss.as.controller.client] (Controller Boot Thread) WFLYCTL0190: Step handler org.jboss.as.controller.AbstractControllerService$ModelControllerServiceInitializationBootStepHandler$1@d410bc2 for operation {"operation" => "boottime-controller-initializer-step","address" => []} at address [] failed handling operation rollback -- java.util.concurrent.TimeoutException
16:37:59,563 ERROR [org.jboss.as.server] (ServerService Thread Pool -- 47) WFLYSRV0022: Deploy of deployment "keycloak-server.war" was rolled back with no failure message
16:37:59,567 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-4) WFLYJCA0019: Stopped Driver service with driver-name = mysql
16:37:59,568 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-4) WFLYJCA0010: Unbound data source [java:jboss/datasources/KeycloakDS]
16:37:59,584 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (ServerService Thread Pool -- 30) IJ000615: Destroying active connection in pool: KeycloakDS (org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@f71fe24)
16:37:59,584 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (ServerService Thread Pool -- 30) IJ000615: Destroying active connection in pool: KeycloakDS (org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@4dc3f1f6)
16:37:59,584 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (ServerService Thread Pool -- 30) IJ000615: Destroying active connection in pool: KeycloakDS (org.jboss.jca.adapters.jdbc.local.LocalManagedConnection@1e5b70f1)
16:37:59,590 WARN [org.hibernate.engine.jdbc.spi.TypeInfo] (ServerService Thread Pool -- 48) HHH000362: Unable to retrieve type info result set : org.postgresql.util.PSQLException: An I/O error occurred while sending to the backend.
16:37:59,601 WARN [org.hibernate.engine.jdbc.spi.TypeInfo] (ServerService Thread Pool -- 48) HHH000362: Unable to retrieve type info result set : org.postgresql.util.PSQLException: This connection has been closed.
16:37:59,604 INFO [org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl] (ServerService Thread Pool -- 48) HHH000424: Disabling contextual LOB creation as createClob() method threw error : java.lang.reflect.InvocationTargetException
16:37:59,606 INFO [org.hibernate.type.BasicTypeRegistry] (ServerService Thread Pool -- 48) HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@116aebf3
16:37:59,616 INFO [org.hibernate.envers.boot.internal.EnversServiceImpl] (ServerService Thread Pool -- 48) Envers integration enabled? : true
16:37:59,865 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-2) WFLYJCA0019: Stopped Driver service with driver-name = postgresql
16:38:00,441 INFO [org.hibernate.validator.internal.util.Version] (ServerService Thread Pool -- 48) HV000001: Hibernate Validator 5.2.3.Final
16:38:01,742 INFO [org.hibernate.hql.internal.QueryTranslatorFactoryInitiator] (ServerService Thread Pool -- 48) HHH000397: Using ASTQueryTranslatorFactory
16:38:03,344 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (ServerService Thread Pool -- 48) SQL Error: 0, SQLState: null
16:38:03,344 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (ServerService Thread Pool -- 48) javax.resource.ResourceException: IJ000470: You are trying to use a connection factory that has been shut down: java:jboss/datasources/KeycloakDS
16:38:03,346 INFO [org.hibernate.event.internal.DefaultLoadEventListener] (ServerService Thread Pool -- 48) HHH000327: Error performing load command : org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
16:38:03,347 WARN [com.arjuna.ats.arjuna] (ServerService Thread Pool -- 48) ARJUNA012077: Abort called on already aborted atomic action 0:ffff7f000001:14dcca52:58de374f:d
16:38:03,351 ERROR [org.keycloak.connections.jpa.updater.liquibase.lock.CustomLockService] (ServerService Thread Pool -- 48) Database error during release lock: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: java.sql.SQLException: IJ031040: Connection is not associated with a managed connection: org.jboss.jca.adapters.jdbc.jdk7.WrappedConnectionJDK7@2b57311c
at liquibase.database.AbstractJdbcDatabase.commit(AbstractJdbcDatabase.java:1130)
at org.keycloak.connections.jpa.updater.liquibase.lock.CustomLockService.releaseLock(CustomLockService.java:184)
at org.keycloak.connections.jpa.updater.liquibase.lock.LiquibaseDBLockProvider.lambda$releaseLock$1(LiquibaseDBLockProvider.java:126)
at org.keycloak.models.utils.KeycloakModelUtils.suspendJtaTransaction(KeycloakModelUtils.java:544)
at org.keycloak.connections.jpa.updater.liquibase.lock.LiquibaseDBLockProvider.releaseLock(LiquibaseDBLockProvider.java:123)
at org.keycloak.services.resources.KeycloakApplication$1.run(KeycloakApplication.java:140)
at org.keycloak.models.utils.KeycloakModelUtils.runJobInTransaction(KeycloakModelUtils.java:228)
at org.keycloak.services.resources.KeycloakApplication.<init>(KeycloakApplication.java:129)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
////
Caused by: liquibase.exception.DatabaseException: java.sql.SQLException: IJ031040: Connection is not associated with a managed connection: org.jboss.jca.adapters.jdbc.jdk7.WrappedConnectionJDK7@2b57311c
at liquibase.database.jvm.JdbcConnection.commit(JdbcConnection.java:126)
at liquibase.database.AbstractJdbcDatabase.commit(AbstractJdbcDatabase.java:1128)
... 31 more
Caused by: java.sql.SQLException: IJ031040: Connection is not associated with a managed connection: org.jboss.jca.adapters.jdbc.jdk7.WrappedConnectionJDK7@2b57311c
at org.jboss.jca.adapters.jdbc.WrappedConnection.lock(WrappedConnection.java:164)
at org.jboss.jca.adapters.jdbc.WrappedConnection.getAutoCommit(WrappedConnection.java:802)
at liquibase.database.jvm.JdbcConnection.commit(JdbcConnection.java:122)
... 32 more
16:38:03,352 WARN [com.arjuna.ats.arjuna] (ServerService Thread Pool -- 48) ARJUNA012077: Abort called on already aborted atomic action 0:ffff7f000001:14dcca52:58de374f:c
16:38:03,357 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 48) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./auth: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./auth: java.lang.RuntimeException: RESTEASY003325: Failed to construct public org.keycloak.services.resources.KeycloakApplication(javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: RESTEASY003325: Failed to construct public org.keycloak.services.resources.KeycloakApplication(javax.servlet.ServletContext,org.jboss.resteasy.core.Dispatcher)
at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:162)
at org.jboss.resteasy.spi.ResteasyProviderFactory.createProviderInstance(ResteasyProviderFactory.java:2209)
at org.jboss.resteasy.spi.ResteasyDeployment.createApplication(ResteasyDeployment.java:299)
at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:240)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:113)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:117)
at org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor.init(RunAsLifecycleInterceptor.java:78)
at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:103)
at io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:231)
at io.undertow.servlet.core.ManagedServlet.createServlet(ManagedServlet.java:132)
at io.undertow.servlet.core.DeploymentManagerImpl.start(DeploymentManagerImpl.java:526)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:101)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82)
... 6 more
Caused by: org.keycloak.models.ModelException: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
at org.keycloak.connections.jpa.PersistenceExceptionConverter.convert(PersistenceExceptionConverter.java:61)
at org.keycloak.connections.jpa.PersistenceExceptionConverter.invoke(PersistenceExceptionConverter.java:51)
at com.sun.proxy.$Proxy61.find(Unknown Source)
at org.keycloak.models.jpa.MigrationModelAdapter.getStoredVersion(MigrationModelAdapter.java:38)
at org.keycloak.migration.MigrationModelManager.migrate(MigrationModelManager.java:68)
at org.keycloak.services.resources.KeycloakApplication.migrateModel(KeycloakApplication.java:238)
at org.keycloak.services.resources.KeycloakApplication.migrateAndBootstrap(KeycloakApplication.java:179)
at org.keycloak.services.resources.KeycloakApplication$1.run(KeycloakApplication.java:138)
at org.keycloak.models.utils.KeycloakModelUtils.runJobInTransaction(KeycloakModelUtils.java:228)
at org.keycloak.services.resources.KeycloakApplication.<init>(KeycloakApplication.java:129)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:150)
... 19 more
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1619)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1106)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1033)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.keycloak.connections.jpa.PersistenceExceptionConverter.invoke(PersistenceExceptionConverter.java:49)
... 32 more
Caused by: org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:90)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:112)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:47)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:146)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:148)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.prepareQueryStatement(AbstractLoadPlanBasedLoader.java:241)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:185)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:121)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:167)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3956)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:508)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:478)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:219)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:278)
at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1129)
at org.hibernate.internal.SessionImpl.access$2600(SessionImpl.java:164)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2696)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:975)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1075)
... 38 more
Caused by: java.sql.SQLException: javax.resource.ResourceException: IJ000470: You are trying to use a connection factory that has been shut down: java:jboss/datasources/KeycloakDS
at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:146)
at org.jboss.as.connector.subsystems.datasources.WildFlyDataSource.getConnection(WildFlyDataSource.java:66)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:386)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:87)
... 60 more
Caused by: javax.resource.ResourceException: IJ000470: You are trying to use a connection factory that has been shut down: java:jboss/datasources/KeycloakDS
at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:735)
at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:138)
... 64 more
16:38:03,377 INFO [org.jboss.as.server] (Thread-2) WFLYSRV0220: Server shutdown has been requested.
最佳答案
对于 coordinator-environment
添加 default-timeout
以秒为单位,例如36000 秒 10 分钟。您需要根据您的系统对其进行调整,因此您可能需要将其设置得更高。这为我解决了这个问题(ARJUNA012117),但是在 Keycloak 14 的初始设置中使用 MySQL。
<subsystem xmlns="urn:jboss:domain:transactions:6.0">
...
<coordinator-environment default-timeout="36000" .../>
...
</subsystem>
关于postgresql - Keycloak 服务器未开始使用云数据库服务,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43139504/
就目前情况而言,这个问题不太适合我们的问答形式。我们希望答案得到事实、引用资料或专业知识的支持,但这个问题可能会引发辩论、争论、民意调查或扩展讨论。如果您觉得这个问题可以改进并可能重新开放,visit
我计划使用 python 开发一个 Web/云应用程序,它执行以下操作, 1.上传Perl/Python抓取脚本并执行。 2. 上传脚本以按计划运行。 3. 使用不同的输入参数运行同一脚本的多个实例。
我正在开发一个应用程序,我想实现一个功能,可以在相同的用户设备之间共享,比方说,收藏夹、书签等。所以,我想实现类似 iCloud 的东西。 我想到了 2 个可能的想法:Backup Manager 和
按照目前的情况,这个问题不适合我们的问答形式。我们希望答案得到事实、引用或专业知识的支持,但这个问题可能会引发辩论、争论、投票或扩展讨论。如果您觉得这个问题可以改进并可能重新打开,visit the
我正在尝试从一系列短语中使一个单词云成为一个词云,而不是从单个单词中重复很多短语。我的数据看起来像这样,数据框的一列是短语列表。 df$names <- c("John", "John", "Jose
对于配置AWS服务(EC2/R53/VPC/S3/..),Terraform等技术在执行回滚、错误处理等方面的方法不可靠。 AWS CloudFormation 模板解决了这些问题。 CloudFor
我无法使用我的 Azure 帐户执行任何操作,例如创建服务器或数据库或任何操作。看起来这一切都围绕着我无法创建的资源组>我收到此错误: 这特别困难,因为我什至无法使用云外壳,因为我得到了这个:请求 C
是否有在客户端使用 socket.io 的云/托管推送系统?据我所知,没有一个系统使用 socket.io AFAIK: http://beaconpush.com/ http://pusher.co
有没有办法在我的计算机上本地运行 RStudio,但使用运行 R 作为引擎的远程计算机而不是本地 R 安装? 需要明确的是,我知道可以将 RStudio 服务器与 Web GUI 一起使用,但我问的是
我正在寻找在这种情况下可以使用的合适服务: 在视频模式下打开相机并将其流式传输到 azure 云。 并从另一方聆听(也包括客户)。 我读到了有关 Azure 媒体服务的信息。 但根据this我知道客户
这个问题已经有答案了: 已关闭12 年前。 Possible Duplicate: Google App Engine, getting started 如何将 Java 应用程序部署到 Google
我有一个用 Java 7 编写的相当大的控制台应用程序,它管理大量的订单处理。 该应用程序使用大量订单 Web 服务、与数据库交互并将数据插入 ERP 系统。该应用程序的要求没有指定用户交互,因此在项
我已经阅读过有关 Windows Azure 的内容,但为了深入了解这项技术,我(显然)需要使用它。我有一个小型 ASP.NET 网站,流量很少,我认为在 Azure 上托管该网站会节省我的钱。除此之
我的 Activity 中有 3 个编辑文本(姓名、手机号码、职业)和一个按钮(保存)。每次用户单击按钮时,我都想将这三个数据保存到 Parse-cloud。然后新 Activity 在 imagev
我正在尝试通过node.js 将传感器数据发送到artik cloud。 (使用网络套接字和串行端口)。但它发送空。有人知道原因吗?我刚刚复制了教程中的代码,因此没有语法错误。 var webSock
我对 docker hub 和 docker cloud 有一点困惑。我有需要安装在客户端服务器中并运行容器的 docker 镜像。我相信这可以使用 docker hub 来完成,它允许在我的私有(p
晋城,华夏文化发祥地之一。两万年前留下高都遗址、塔水河、下川等人类遗址,女娲补天、愚公移山等神话传说,如今在云上有了崭新的魅力。 9月3日,阿里云数字中国行•晋城峰会期间,晋城市人民政府公布了
我刚开始使用 Airflow 插件,有点困惑。 我在 GCP (composer-1.13.4-airflow-1.10.12) 上使用 Cloud Composer 作为托管服务运行它 我按照文档编
据我所知,PHP 分析工具 XDebug 将其结果保存到文件中。然而,当应用程序运行在云分布式环境中时,处理此类文件是很困难的。处理这种情况的最佳做法是什么? XDebug 中是否有任何方法(最好是可
我们正在将 PHP 网站迁移到 Azure 云 Web 服务(Web 角色)。 目前,该网站通过驱动器盘符访问将用户提交的图像文件保存到文件系统。然后通过 URL 提供这些图像,例如content.e
我是一名优秀的程序员,十分优秀!