perf: optimize zone aware load balancing #227
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| const HostSet& host_set_; | ||
| const HostSet* local_host_set_; | ||
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| bool early_exit_zone_routing_; |
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nit: just initialize {true} here with the other initializers
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Actually, early_exit_zone_routing_ and route_directly_ are mutually exclusive. Combine these into a state_ enum which has something like [NoZoneRouting, ZoneDirect, ZoneResidual] or something. You can have cleaner logic and better asserts this way.
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| bool LoadBalancerBase::earlyExitNonZoneRoutingRuntime() { |
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I would get rid of this function. Everything in here can either be done ahead of time (min cluster size, etc.) or can be moved into the tryChooseLocalZoneHosts() function
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i'll move runtime checks into tryChooseLocalZoneHosts(), we need access runtime values on each iteration if we are not in NoZoneRouting
| return host_set_.healthyHosts(); | ||
| } | ||
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| ASSERT(local_host_set_ != nullptr); |
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nit: remove assert will just crash on next line
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| // Do not perform zone routing for small clusters. | ||
| uint64_t min_cluster_size = runtime_.snapshot().getInteger(RuntimeMinClusterSize, 6U); | ||
| if (host_set_.healthyHosts().size() < min_cluster_size) { |
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this should be precomputed. it can't change outside of the callback.
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| bool LoadBalancerBase::earlyExitNonZoneRouting() { | ||
| uint32_t number_of_zones = host_set_.healthyHostsPerZone().size(); |
| if (local_host_set_ == nullptr || local_host_set_->hosts().empty() || | ||
| isGlobalPanic(*local_host_set_)) { | ||
| stats_.lb_local_cluster_not_ok_.inc(); | ||
| const std::vector<HostPtr>& local_zone_healthy_hosts = host_set_.healthyHostsPerZone()[0]; |
| } | ||
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| zone_routing_state_ = ZoneRoutingState::ZoneResidual; | ||
| // If we cannot route all requests to the same zone, calculate what percentage can be routed. |
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nit: newline before this line
Signed-off-by: Kuat Yessenov <[email protected]>
标题：zh-translation: docs/root/intro/arch_overview/observability/access_logging.rst
Update the docs to reflect new analyses following the libevent fixes from envoyproxy/envoy-mobile#215. Signed-off-by: Michael Rebello <[email protected]> Signed-off-by: JP Simard <[email protected]>
Update the docs to reflect new analyses following the libevent fixes from envoyproxy/envoy-mobile#215. Signed-off-by: Michael Rebello <[email protected]> Signed-off-by: JP Simard <[email protected]>
* Add SGX private key provider and fuzz tests (envoyproxy#227) * Add fuzz test for sgx private key protection (envoyproxy#151) * Fix factory_context issues. * Fix fallback method in sgx private_key_provider. * temporarily disable sgx fuzz testing * Fix duplicate udpa symbols. Signed-off-by: Liu, Qiming <[email protected]> Signed-off-by: Huang Xin <[email protected]> Signed-off-by: Qiming Liu <[email protected]> Co-authored-by: Qiming <[email protected]>
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