無法發佈內容

Last update: Thu Mar 28 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

說明 description

我們的一位客戶抱怨其Stage發佈者無法正常運作，且無法在此執行個體上發佈內容，而且在error.log中可能會看到下列錯誤：

20.09.2022 06:53:27.635 *INFO* discovery.connectors.common.runner.a00e3ce0-3925-4755-990b-f2d776738269.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.a00e3ce0-3925-4755-990b-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)

解決方法 resolution

記錄檔中的錯誤與快取無關，但當服務使用者在作者或發佈者上對/var/discovery路徑沒有正確的許可權時，就會顯示錯誤。

進一步調查後，在要求客戶驗證/var/discovery路徑的許可權時，發現在Stage發行者上，/var下沒有「discovery」資料夾，並且也有許多遺漏的內容。

雖然生產發佈者上的/var資料夾有超過20個子項，但Stage發佈者上的/var資料夾只有2個 — 「replication」和「sling」。

將/var/structure從生產環境復寫到Stage，並在Stage Publishers上重新啟動AEM後，問題已解決。

recommendation-more-help

3d58f420-19b5-47a0-a122-5c9dab55ec7f