feat(base): async back-off in RemoteRegistryClient (roadmap #155)

.github/workflows/async-retry-backoff-ci.yml

@@ -0,0 +1,108 @@
+name: Async Retry Back-Off CI
+
+# Triggered on every push / PR that touches the RemoteRegistryClient sources,
+# tests, or this workflow file.  Targets v1.3.0 (roadmap row #155).
+on:
+  push:
+    branches:
+      - main
+      - develop
+    paths:
+      - 'include/themis/base/remote_registry_client.h'
+      - 'src/base/remote_registry_client.cpp'
+      - 'tests/test_remote_registry_client.cpp'
+      - 'cmake/MiscellaneousFeatures.cmake'
+      - 'tests/CMakeLists.txt'
+      - '.github/workflows/async-retry-backoff-ci.yml'
+  pull_request:
+    types: [opened, synchronize, reopened]
+    paths:
+      - 'include/themis/base/remote_registry_client.h'
+      - 'src/base/remote_registry_client.cpp'
+      - 'tests/test_remote_registry_client.cpp'
+      - 'cmake/MiscellaneousFeatures.cmake'
+      - 'tests/CMakeLists.txt'
+      - '.github/workflows/async-retry-backoff-ci.yml'
+
+concurrency:
+  group: async-retry-backoff-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ci-scope-classifier:
+    permissions:
+      contents: read
+    uses: ./.github/workflows/ci-scope-classifier.yml
+
+  async-retry-tests:
+    needs: ci-scope-classifier
+    if: needs.ci-scope-classifier.outputs.has_code_changes == 'true'
+    name: Async Retry Back-Off (${{ matrix.os }} / ${{ matrix.compiler }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+
+    permissions:
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+            compiler: gcc-12
+            cc: gcc-12
+            cxx: g++-12
+          - os: ubuntu-24.04
+            compiler: gcc-14
+            cc: gcc-14
+            cxx: g++-14
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up C++ build environment
+        uses: ./.github/actions/setup-cpp-build
+        with:
+          cc:             ${{ matrix.cc }}
+          cxx:            ${{ matrix.cxx }}
+          extra-packages: libssl-dev libcurl4-openssl-dev libboost-all-dev librocksdb-dev libfmt-dev libtbb-dev libspdlog-dev nlohmann-json3-dev
+
+      - name: Configure and build
+        uses: ./.github/actions/configure-themis
+        with:
+          cc:  ${{ matrix.cc }}
+          cxx: ${{ matrix.cxx }}
+
+      # ── Focused test target ────────────────────────────────────────────────
+      - name: Run RemoteRegistryClientFocusedTests
+        run: |
+          set -o pipefail
+          cd build
+          ctest -R RemoteRegistryClientFocusedTests \
+                --output-on-failure \
+                --timeout 120 \
+                2>&1 | tee async_retry_results.txt
+
+      # ── Broader AC validation via unified binary ───────────────────────────
+      - name: Run RemoteRegistryClient tests via unified binary
+        run: |
+          set -o pipefail
+          cd build
+          ./tests/themis_tests \
+            --gtest_filter="RegistryConfig.*:RegistryPluginEntry.*:PluginDownloadResult.*:RequestStats.*:RemoteRegistryClient.*" \
+            --gtest_output="xml:async_retry_gtest.xml" \
+            2>&1 | tee async_retry_gtest_output.txt
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: async-retry-results-${{ matrix.os }}-${{ matrix.compiler }}
+          path: |
+            build/async_retry_results.txt
+            build/async_retry_gtest.xml
+            build/async_retry_gtest_output.txt
+          retention-days: 30

.github/workflows/multi-tier-replication-ci.yml

@@ -0,0 +1,120 @@
+name: Multi-Tier Replication CI
+
+# Triggered on every push / PR that touches MultiTierReplicationManager
+# sources or its test file.  Targets v1.8.0.
+on:
+  push:
+    branches:
+      - main
+      - develop
+    paths:
+      - 'include/replication/multi_tier_replication.h'
+      - 'src/replication/multi_tier_replication.cpp'
+      - 'tests/test_replication_ha.cpp'
+      - 'cmake/CMakeLists.txt'
+      - 'cmake/ModularBuild.cmake'
+      - 'tests/CMakeLists.txt'
+      - '.github/workflows/multi-tier-replication-ci.yml'
+  pull_request:
+    types: [opened, synchronize, reopened]
+    paths:
+      - 'include/replication/multi_tier_replication.h'
+      - 'src/replication/multi_tier_replication.cpp'
+      - 'tests/test_replication_ha.cpp'
+      - 'cmake/CMakeLists.txt'
+      - 'cmake/ModularBuild.cmake'
+      - 'tests/CMakeLists.txt'
+      - '.github/workflows/multi-tier-replication-ci.yml'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ci-scope-classifier:
+    permissions:
+      contents: read
+    uses: ./.github/workflows/ci-scope-classifier.yml
+
+  # ---------------------------------------------------------------------------
+  # Build and run the MultiTierReplicationManager focused test suite.
+  # Tests cover all acceptance criteria:
+  #   AC-1  Tier 1: Strong consistency, high durability (3+ replicas, sync, <10ms)
+  #   AC-2  Tier 2: Eventual consistency, moderate durability (2 replicas, semi-sync)
+  #   AC-3  Tier 3: Best-effort, low durability (1 replica, async)
+  #   AC-4  Per-collection tier assignment
+  #   AC-5  Automatic tier promotion/demotion based on access patterns
+  # ---------------------------------------------------------------------------
+  multi-tier-replication-tests:
+    needs: ci-scope-classifier
+    if: needs.ci-scope-classifier.outputs.has_code_changes == 'true'
+    name: Multi-Tier Replication (${{ matrix.os }} / ${{ matrix.compiler }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+
+    permissions:
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+            compiler: gcc-12
+            cc: gcc-12
+            cxx: g++-12
+          - os: ubuntu-24.04
+            compiler: gcc-14
+            cc: gcc-14
+            cxx: g++-14
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up C++ build environment
+        uses: ./.github/actions/setup-cpp-build
+        with:
+          cc:             ${{ matrix.cc }}
+          cxx:            ${{ matrix.cxx }}
+          extra-packages: libssl-dev libboost-all-dev librocksdb-dev libfmt-dev libtbb-dev libspdlog-dev nlohmann-json3-dev liblz4-dev libzstd-dev libsnappy-dev libprotobuf-dev
+
+      - name: Configure and build
+        uses: ./.github/actions/configure-themis
+        with:
+          cc:  ${{ matrix.cc }}
+          cxx: ${{ matrix.cxx }}
+
+      # ── Focused test target ────────────────────────────────────────────────
+      - name: Run MultiTierReplicationFocusedTests
+        run: |
+          set -o pipefail
+          cd build
+          ctest -R MultiTierReplicationFocusedTests \
+                --output-on-failure \
+                --timeout 120 \
+                2>&1 | tee multi_tier_replication_results.txt
+
+      # ── Broader AC validation via unified binary ───────────────────────────
+      - name: Run MultiTierReplicationTest via unified binary
+        run: |
+          set -o pipefail
+          cd build
+          ./tests/test_multi_tier_replication_focused \
+            --gtest_filter="MultiTierReplicationTest*" \
+            --gtest_output="xml:multi_tier_replication_gtest.xml" \
+            2>&1 | tee multi_tier_replication_gtest_output.txt
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: multi-tier-replication-results-${{ matrix.os }}-${{ matrix.compiler }}
+          path: |
+            build/multi_tier_replication_results.txt
+            build/multi_tier_replication_gtest.xml
+            build/multi_tier_replication_gtest_output.txt
+          retention-days: 30

cmake/CMakeLists.txt

@@ -1819,6 +1819,7 @@ set(THEMIS_CORE_SOURCES
     ../src/replication/replication_slot.cpp
     ../src/replication/raft_v2.cpp
     ../src/replication/schema_cdc.cpp
+    ../src/replication/multi_tier_replication.cpp
 
     # Temporal versioning and query engine
     ../src/temporal/temporal_conflict_resolver.cpp

cmake/ModularBuild.cmake

@@ -768,6 +768,7 @@ set(THEMIS_TRANSACTION_SOURCES
     ../src/replication/replication_slot.cpp
     ../src/replication/raft_v2.cpp
     ../src/replication/schema_cdc.cpp
+    ../src/replication/multi_tier_replication.cpp
     ../src/replication/logical_replication.cpp
 
 )