logEntry = (LNLogEntry) envImpl.getLogManager().
getLogEntryHandleFileNotFound(undoLsn);
ln = logEntry.getLN();
nodeId = ln.getNodeId();
DatabaseId dbId = logEntry.getDbId();
db = undoDatabases.get(dbId);
ln.postFetchInit(db, undoLsn);
/* DbImpls are obtained from the txn's cache. */
dbMapTree = null;