.META. by-passes cache; BLOCKCACHE=>'false'
-------------------------------------------
Key: HBASE-2451
URL: https://issues.apache.org/jira/browse/HBASE-2451
Project: Hadoop HBase
Issue Type: Bug
Reporter: stack
Priority: Blocker
Fix For: 0.20.4, 0.20.5, 0.21.0
In a new install, if I describe '.META.', it says:
{code}
DESCRIPTION ENABLED
{NAME => '.META.', IS_META => 'true', MEMSTORE_FLUSHSIZE => '16384', F true
AMILIES => [{NAME => 'historian', COMPRESSION => 'NONE', VERSIONS => '
2147483647', TTL => '604800', BLOCKSIZE => '8192', IN_MEMORY => 'false
', BLOCKCACHE => 'false'}, {NAME => 'info', COMPRESSION => 'NONE', VER
SIONS => '10', TTL => '2147483647', BLOCKSIZE => '8192', IN_MEMORY =>
'false', BLOCKCACHE => 'true'}]}
{code}
BLOCKCACHE is 'true' for the 'info' family (Yes historian is still in 0.20
branch).
But, if I add logging to hfile and storefile and store, blockcache is 'false'
-- there is no cache constructed for use by the hfile.
This is killing cluster performance.
It looks like a problem parsing the 'true' value in columnfamily. I'll put up
a patch in the morning. Meantime, marking as blocker on 0.20.4.
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