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osdc: Constrain max number of in-flight read requests 3654/head 3655/head
authorJason Dillaman <dillaman@redhat.com>
Wed, 4 Feb 2015 10:07:32 +0000 (05:07 -0500)
committerJason Dillaman <dillaman@redhat.com>
Wed, 4 Feb 2015 10:51:41 +0000 (05:51 -0500)
commit34d35951e62f0985013e33c5f90938b28862bc35
tree6b463401aa887382a9838af66e02b33a5653fef3tree | snapshot
parent8820d4c30a8bf62527ac552491e9825906c4a3d3commit | diff
osdc: Constrain max number of in-flight read requests

Constrain the number of in-flight RADOS read requests to the
cache size. This reduces the chance of the cache memory
ballooning during certain scenarios like copy-up which can
invoke many concurrent read requests.

Fixes: #9854
Backport: giant, firefly, dumpling
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
src/osdc/ObjectCacher.cc diff | blob | history
src/osdc/ObjectCacher.h diff | blob | history
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