BlockIndex readIndex too slowly in heavy write scenario
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Key: HBASE-3040
URL: https://issues.apache.org/jira/browse/HBASE-3040
Project: HBase
Issue Type: Improvement
Components: regionserver
Affects Versions: 0.20.6
Environment: 1master, 7 region servers, 4 * 7 clients(all clients run
on region server host), sequential put
Reporter: andychen
region size is configured with 128M, block size is 64K, the table has 5 column
families
at the beginning, when region split, master assigns daughters to new region
servers, new region server open region, readIndex of this region's
storefile(about 1000 blocks) spent 30~50ms, with the data import region server
spent more and more time (sometimes up to several seconds) to load 1000 block
indices
at right now, we resolve this issue by getting all indices of one hfile within
one DFS read instead of 1000 reads.
is there any other better resolution?
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