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https://issues.apache.org/jira/browse/CASSANDRA-1056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12865775#action_12865775
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Jonathan Ellis commented on CASSANDRA-1056:
-------------------------------------------
Anty writes on dev list: "I have reviewed the patch,and have done test on my
litter luster, all is good."
> size of row in spanned index entries does not include key bytes
> ---------------------------------------------------------------
>
> Key: CASSANDRA-1056
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1056
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.6
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Trivial
> Fix For: 0.6.2
>
> Attachments: 1056.txt
>
>
> from Anty on the mailing list,
> In source code of 0.6.1 ,in SSTableWriter,
> private void afterAppend(DecoratedKey decoratedKey, long dataPosition, int
> dataSize) throws IOException
> {
> String diskKey = partitioner.convertToDiskFormat(decoratedKey);
> bf.add(diskKey);
> lastWrittenKey = decoratedKey;
> long indexPosition = indexFile.getFilePointer();
> indexFile.writeUTF(diskKey);
> indexFile.writeLong(dataPosition);
> if (logger.isTraceEnabled())
> logger.trace("wrote " + decoratedKey + " at " + dataPosition);
> if (logger.isTraceEnabled())
> logger.trace("wrote index of " + decoratedKey + " at " +
> indexPosition);
> indexSummary.maybeAddEntry(decoratedKey, dataPosition, dataSize,
> indexPosition, indexFile.getFilePointer());
> }
> the value of "dataSize" is the length of value( column family) ,not including
> the length of key.
> but in the method loadIndexFile() of SStableReader
> ...
> else
> {
> input.readUTF();
> nextDataPosition = input.readLong();
> input.seek(nextIndexPosition);
> }
> indexSummary.maybeAddEntry(decoratedKey, dataPosition,
> nextDataPosition - dataPosition, indexPosition, nextIndexPosition);
> }
> indexSummary.complete();
> the value of nextDataPosition - dataPosition is the length of key and value
> ,not just the length of value .
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