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无法发布内容

Last update: Tue Jul 16 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

将/var/structure从生产环境复制到暂存环境，并在暂存发布服务器上重新启动AEM后，解决了此问题。

描述 description

环境
Adobe Experience Manager (AEM)

问题
暂存发布器无法正常工作，您无法在此实例上发布内容。

在error.log中看到以下类型的错误：

20.09.2022 06:53:27.635 *INFO* [ discovery.connectors.common.runner.artewte0-3885-4755-990b-f2d7574839269.discoveryLiteCheck]  org.apache.sling.discovery.base.commons.BaseDiscoveryService getTopology: undefined cluster view: REPOSITORY_EXCEPTION]  org.apache.sling.discovery.base.commons.UndefinedClusterViewException: Exception while processing descriptor: java.lang.IllegalArgumentException: Can't create child on a synthetic root
20.09.2022 06:53:29.636 *ERROR* [ discovery.connectors.common.runner.a0gfdwsgt0-3885-4755-990b-f2d776738269.discoveryLiteCheck]  org.apache.sling.discovery.oak.cluster.OakClusterViewService getLocalClusterView: repository exception: java.lang.IllegalArgumentException: Can't create child on a synthetic root
java.lang.IllegalArgumentException: Can't create child on a synthetic root
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:979) [ org.apache.sling.resourceresolver:1.7.2.B0001]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:666) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:603) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:571) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:654) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:603) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:571) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:654) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:603) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:571) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:654) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:603) [ org.apache.sling.api:2.22.0]
at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:571) [ org.apache.sling.api:2.22.0]
at org.apache.sling.discovery.commons.providers.util.ResourceHelper.getOrCreateResource(ResourceHelper.java:45) [ org.apache.sling.discovery.commons:1.0.20]
at org.apache.sling.discovery.commons.providers.spi.base.IdMapService.readIdMap(IdMapService.java:302) [ org.apache.sling.discovery.commons:1.0.20]
at org.apache.sling.discovery.commons.providers.spi.base.IdMapService.toSlingId(IdMapService.java:280) [ org.apache.sling.discovery.commons:1.0.20]
at org.apache.sling.discovery.oak.cluster.OakClusterViewService.asClusterView(OakClusterViewService.java:174) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.oak.cluster.OakClusterViewService.getLocalClusterView(OakClusterViewService.java:120) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.base.commons.BaseDiscoveryService.getTopology(BaseDiscoveryService.java:77) [ org.apache.sling.discovery.base:2.0.8]
at org.apache.sling.discovery.oak.OakDiscoveryService.checkForTopologyChange(OakDiscoveryService.java:660) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.oak.pinger.OakViewChecker.discoveryLiteCheck(OakViewChecker.java:217) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.oak.pinger.OakViewChecker.access$000(OakViewChecker.java:62) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.oak.pinger.OakViewChecker$1.run(OakViewChecker.java:193) [ org.apache.sling.discovery.oak:1.2.22]
at org.apache.sling.discovery.base.commons.PeriodicBackgroundJob.safelyRun(PeriodicBackgroundJob.java:86) [ org.apache.sling.discovery.base:2.0.8]
at org.apache.sling.discovery.base.commons.PeriodicBackgroundJob.run(PeriodicBackgroundJob.java:77) [ org.apache.sling.discovery.base:2.0.8]
at java.base/java.lang.Thread.run(Thread.java:834)

解决方法 resolution

日志中的错误与缓存无关，但当服务用户在作者或发布服务器上对路径/var/discovery没有正确的权限时，就会出现这些错误。

验证/var/discovery路径的权限时，发现暂存发布服务器上在/var下没有discovery文件夹，并且还有大量缺失的内容。

虽然生产发布服务器上的/var文件夹有20多个子文件夹，但暂存发布服务器上的/var文件夹只有2个： replication 和 sling。

将/var/structure从生产环境复制到暂存环境，并在暂存发布服务器上重新启动AEM后，解决了此问题。

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