enable orioledb rewind gucs

Author: olirice

Dockerfile-orioledb-17

@@ -189,9 +189,16 @@ RUN sed -i \
 RUN sed -i 's/ timescaledb,//g;' "/etc/postgresql/postgresql.conf" 
     #as of pg 16.4 + this db_user_namespace totally deprecated and will break the server if setting is present
 RUN sed -i 's/db_user_namespace = off/#db_user_namespace = off/g;' "/etc/postgresql/postgresql.conf" 
-RUN sed -i 's/ timescaledb,//g; s/ plv8,//g; s/ postgis,//g; s/ pgrouting,//g' "/etc/postgresql-custom/supautils.conf" 
-RUN sed -i 's/\(shared_preload_libraries.*\)'\''\(.*\)$/\1, orioledb'\''\2/' "/etc/postgresql/postgresql.conf" 
-RUN echo "default_table_access_method = 'orioledb'" >> "/etc/postgresql/postgresql.conf" 
+RUN sed -i 's/ timescaledb,//g; s/ plv8,//g; s/ postgis,//g; s/ pgrouting,//g' "/etc/postgresql-custom/supautils.conf"
+RUN sed -i 's/\(shared_preload_libraries.*\)'\''\(.*\)$/\1, orioledb'\''\2/' "/etc/postgresql/postgresql.conf"
+RUN echo "default_table_access_method = 'orioledb'" >> "/etc/postgresql/postgresql.conf"
+
+# OrioleDB rewind configuration
+# Enables time-based rewind capability for up to 20 minutes (1200 seconds)
+RUN echo "orioledb.enable_rewind = true" >> "/etc/postgresql/postgresql.conf" && \
+    echo "orioledb.rewind_max_time = 1200" >> "/etc/postgresql/postgresql.conf" && \
+    echo "orioledb.rewind_max_transactions = 100000" >> "/etc/postgresql/postgresql.conf" && \
+    echo "orioledb.rewind_buffers = 13" >> "/etc/postgresql/postgresql.conf" 
 
 
 

ansible/tasks/stage2-setup-postgres.yml

@@ -57,7 +57,39 @@
         state: present
       when: is_psql_oriole and stage2_nix
       become: yes
-    
+
+    - name: Enable OrioleDB rewind feature
+      ansible.builtin.lineinfile:
+        path: /etc/postgresql/postgresql.conf
+        line: "orioledb.enable_rewind = true"
+        state: present
+      when: is_psql_oriole and stage2_nix
+      become: yes
+
+    - name: Set OrioleDB rewind max time (20 minutes)
+      ansible.builtin.lineinfile:
+        path: /etc/postgresql/postgresql.conf
+        line: "orioledb.rewind_max_time = 1200"
+        state: present
+      when: is_psql_oriole and stage2_nix
+      become: yes
+
+    - name: Set OrioleDB rewind max transactions
+      ansible.builtin.lineinfile:
+        path: /etc/postgresql/postgresql.conf
+        line: "orioledb.rewind_max_transactions = 100000"
+        state: present
+      when: is_psql_oriole and stage2_nix
+      become: yes
+
+    - name: Set OrioleDB rewind buffers
+      ansible.builtin.lineinfile:
+        path: /etc/postgresql/postgresql.conf
+        line: "orioledb.rewind_buffers = 13"
+        state: present
+      when: is_psql_oriole and stage2_nix
+      become: yes
+
     - name: Add ORIOLEDB_ENABLED environment variable
       ansible.builtin.lineinfile:
         path: /etc/environment

nix/tools/run-server.sh.in

@@ -248,6 +248,11 @@ orioledb_config_items() {
         sed -i 's/ timescaledb,//g; s/ plv8,//g; s/ pgjwt,//g;' "$DATDIR/supautils.conf"
         sed -i 's/\(shared_preload_libraries.*\)'\''\(.*\)$/\1, orioledb'\''\2/' "$DATDIR/postgresql.conf"
         echo "default_table_access_method = 'orioledb'" >> "$DATDIR/postgresql.conf"
+        # OrioleDB rewind configuration (20 minute window)
+        echo "orioledb.enable_rewind = true" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_max_time = 1200" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_max_transactions = 100000" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_buffers = 13" >> "$DATDIR/postgresql.conf"
     elif [[ "$1" = "orioledb-17" && "$CURRENT_SYSTEM" = "aarch64-darwin" ]]; then
         # macOS specific configuration
         echo "macOS detected, applying macOS specific configuration"
@@ -261,8 +266,13 @@ orioledb_config_items() {
         perl -pi -e 's/ plv8,//g' "$DATDIR/supautils.conf"
         perl -pi -e 's/ pgjwt,//g' "$DATDIR/supautils.conf"
         perl -pi -e 's/(shared_preload_libraries\s*=\s*'\''.*?)'\''/\1, orioledb'\''/' "$DATDIR/postgresql.conf"
-        
+
         echo "default_table_access_method = 'orioledb'" >> "$DATDIR/postgresql.conf"
+        # OrioleDB rewind configuration (20 minute window)
+        echo "orioledb.enable_rewind = true" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_max_time = 1200" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_max_transactions = 100000" >> "$DATDIR/postgresql.conf"
+        echo "orioledb.rewind_buffers = 13" >> "$DATDIR/postgresql.conf"
     elif [[ "$VERSION" == "17" && "$CURRENT_SYSTEM" != "aarch64-darwin" ]]; then
         echo "non-macos pg 17 conf"
         sed -i 's/ timescaledb,//g;' "$DATDIR/postgresql.conf"