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From mac fang <mac.had...@gmail.com>
Subject One HLog for one RegionServer
Date Fri, 18 Feb 2011 06:31:41 GMT
Hi, guys,

i have a question about HLog, from the design doc, we can see the HLog is
for one Region. However, from code, i saw the HLog is for the whole Region
Server. Any reason of having this? Does it have some issues of Write Lock
and latency of rebuilding the StoreFile. See, if we can use one HLog for one
HRegion, then we can split the write lock for each HRegion when write
request comes, and we also can rebuild the HFile from HLog concurrently.
Hope to have your ideas.



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