Add timeout to remote store calls, and adjust name of cache timeout. (Cherry-pick of #18695) #18697
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#16196 moved the cache read timeout down to the network layer, which made it much more accurate. But cache lookups also involve a number of calls to a remote
Store
, which did not have their own timeout.This change adds an RPC timeout for
Store
accesses to allow for retries of tar-pitted remote store RPCs, and adjusts the naming of the--remote-cache-rpc-timeout-millis
option to make it clear that it applies to all cache operations (including writes).