Update to 1 36 5 with various patch#16
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gavin-jeong merged 4 commits intoupdate_to_1_36_5from Feb 11, 2026
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Add per-shard statistics for Redis proxy to track hot shard usage: - enable_per_shard_stats: Emits per-shard request counters - upstream_rq_total: Total requests to each shard - upstream_rq_success: Successful requests - upstream_rq_failure: Failed requests - upstream_rq_active: Active requests (gauge) - enable_per_shard_latency_stats: Emits latency histogram - upstream_rq_time: Request latency in microseconds All metrics are scoped under: cluster.<cluster_name>.shard.<host_address>.* Per-shard command-level stats are also recorded when enable_command_stats is enabled alongside the per-shard options. Note: These options may significantly increase metric cardinality in large clusters. Use with caution in production environments.
This change implements zone-aware routing for Redis Cluster, allowing read requests to be routed to replicas in the same availability zone as the client. Key changes: - Add enable_zone_discovery config option to redis_cluster.proto - Add az_affinity and az_affinity_replicas_and_primary read policies - Implement INFO command-based zone discovery during cluster slot updates - Store zone info in host locality for standard Envoy locality handling - RedisShard groups replicas by zone for efficient zone-aware routing Zone Discovery Flow: 1. CLUSTER SLOTS response triggers zone discovery when enabled 2. INFO command sent to each unique node to get availability_zone 3. Zones stored in host->locality().zone() when hosts are created 4. RedisShard reads zone from host locality, groups replicas by zone Read Policies: - AzAffinity: local replicas -> any replica -> primary - AzAffinityReplicasAndPrimary: local replicas -> local primary -> any replica -> primary Note: This feature currently works with Valkey only. Valkey exposes availability_zone in its INFO response. Standard Redis does not support this field. Signed-off-by: Doogie Min <doogie.min@sendbird.com>
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Add TLS certificate compression with brotli, zstd, and zlib algorithms. This reduces TLS handshake size, especially beneficial for QUIC where the ServerHello needs to fit in the initial response. Key changes: - Move cert_compression from quic/ to tls/ for shared use - Add brotli and zstd algorithms alongside existing zlib - Add compression stats: ssl.certificate_compression.<algo>.* - Add runtime flag (default: disabled) for safe rollout - Fix SSL_CTX app_data crash risk for QUIC by using SSL_CTX_get_ex_new_index() Runtime guard: envoy.reloadable_features.tls_support_certificate_compression Cherry-picked from upstream PR envoyproxy#42690 (not yet merged).
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The HostImpl constructor expects a const reference, not a shared_ptr.
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