Oak indexing failing

The error message failing index stats: org.apache.jackrabbit.oak.plugins.index.TrackingCorruptIndexHandler indicates that there might be a problem with the Oak index in your AEM instance. Here are some possible reasons and steps you can take to troubleshoot:

1. Corrupted Index: The index might have become corrupted due to an improper shutdown of AEM or other factors. You can try to reindex the failing mBean. To do this, you can set the reindex property to true on the index definition node in CRXDE Lite. This will trigger a reindexing operation.

2. Slow or Stuck Reindexing: Sometimes, the reindexing process can become slow or even stuck. This can happen if there’s a large amount of content to index. You can check the IndexStats JMX MBeans to see if the indexing is taking too long.

3. Missing Indexes: If certain indexes are missing on your publish instance, you might see warnings in your logs. Make sure that all necessary indexes are present and up-to-date.

4. Overloaded Thread Pool: In some cases, the thread pool used to manage asynchronous indexing may become overloaded. You can configure a separate thread pool for asynchronous indexing to prevent other AEM work from interfering with Oak’s ability to index content in a timely manner.

Remember to check the logs for any exceptions or error messages that might give more insight into what’s causing the indexing failure. If the issue persists, consider reaching out to Adobe support for further assistance.