Cause
This error is often a side-effect of a corrupted forest or file system error, such as running out of file descriptors or disk space on the forest's file system. Key file corruption may also occur if the disk becomes temporarily unavailable while the system is trying sync one of the MarkLogic Server memory mapped files to disk.
Response
Correct the underlying file system problem and restore the corrupted forest. For example, restore the system to a healthy state from a good backup, or delete the corrupted stand to get the forest to a healthy state and then reload missing documents.
If you need assistance determining the extent of the corruption and restoring the system to a good state and you have a current maintenance contract with MarkLogic, you can contact MarkLogic Technical Support.
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