Todd Lipcon created HDFS-3683:
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Summary: Edit log replay progress indicator shows >100% complete
Key: HDFS-3683
URL: https://issues.apache.org/jira/browse/HDFS-3683
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 2.0.0-alpha
Reporter: Todd Lipcon
Priority: Minor
When loading a large edit log, the NameNode prints a percentage-complete
progress indicator:
{code}
int percent = Math.round((float)lastAppliedTxId / numTxns * 100);
LOG.info("replaying edit log: " + lastAppliedTxId + "/" + numTxns
+ " transactions completed. (" + percent + "%)");
{code}
But the percentage is calculated incorrectly, since it divides the transaction
ID by the number of expected transactions. This only works when starting at
txid 1. (eg if we are loading 1000 transaction starting at txid 1000, the
indicator will start at 100% and go to 200%)
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