20 May
2020
20 May
'20
4:26 p.m.
RGW creates a new, unique req_state for each incoming request. In
general, only one thread is operating on a request (or it's unique
req_state instance) at any time. A special case is when (lower level)
RADOS operations are being started and completed during the processing
of the RGW request--a different set of (currently) threads is
responsible for executing the RADOS operations, so there is locking
involved.
Matt
On Wed, May 20, 2020 at 9:20 AM Abhinav Singh
<singhabhinav0796(a)gmail.com> wrote:
Hello everyone,
I have a doubt,
What I seems to understand :
when a client makes a req to rgw, then the req is spawn into multiple threads and the
each of the thread will have its own req_state instances, and so if I define any data
structure inside req_state then there cant be any race condition right to that data
structure
Am I right? If not then does this mean that req_state is global to multiple threads and
there is chance of race condition?
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Matt Benjamin
Red Hat, Inc.
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