Jimmy Xiang created HBASE-9870:
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Summary: HFileDataBlockEncoderImpl#diskToCacheFormat uses wrong
format
Key: HBASE-9870
URL: https://issues.apache.org/jira/browse/HBASE-9870
Project: HBase
Issue Type: Bug
Reporter: Jimmy Xiang
In this method, we have
{code}
if (block.getBlockType() == BlockType.ENCODED_DATA) {
if (block.getDataBlockEncodingId() == onDisk.getId()) {
// The block is already in the desired in-cache encoding.
return block;
}
{code}
This assumes onDisk encoding is the same as that of inCache. This is not true
when we change the encoding of a CF. This could be one of the reasons I got
data loss with online encoding change?
If I make sure onDisk == inCache all the time, my ITBLL with online encoding
change worked once for me.
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