FileTxnLog txnLog = new FileTxnLog(logDir);
TxnIterator itr = txnLog.read(0);
// Check that storage space return some value
FileTxnIterator fileItr = (FileTxnIterator) itr;
long storageSize = fileItr.getStorageSize();
LOG.info("Txnlog size: " + storageSize + " bytes");
Assert.assertTrue("Storage size is greater than zero ",
(storageSize > 0));
long expectedZxid = 0;