implement WAL more properly

ref: epicweb-dev/epic-stack#621

Dockerfile

@@ -62,6 +62,8 @@ ENV DATABASE_URL="file:$DATABASE_PATH"
 ENV INTERNAL_PORT="8080"
 ENV PORT="8081"
 ENV NODE_ENV="production"
+# For WAL support: https://github.com/prisma/prisma-engines/issues/4675#issuecomment-1914383246
+ENV PRISMA_SCHEMA_DISABLE_ADVISORY_LOCK = "1"
 # ENV DISABLE_METRONOME="true"
 ENV CACHE_DATABASE_FILENAME="cache.db"
 ENV CACHE_DATABASE_PATH="$LITEFS_DIR/$CACHE_DATABASE_FILENAME"
@@ -81,7 +83,7 @@ COPY --from=build /app/server-build /app/server-build
 ADD . .
 
 # prepare for litefs
-COPY --from=flyio/litefs:0.5.10 /usr/local/bin/litefs /usr/local/bin/litefs
+COPY --from=flyio/litefs:0.5.11 /usr/local/bin/litefs /usr/local/bin/litefs
 ADD other/litefs.yml /etc/litefs.yml
 RUN mkdir -p /data ${LITEFS_DIR}
 

other/litefs.yml

@@ -80,13 +80,15 @@ lease:
 exec:
   - cmd: node ./other/setup-swap.js
 
-  - cmd: sqlite3 $DATABASE_PATH "PRAGMA journal_mode = WAL;"
+  - cmd: npx prisma migrate deploy
     if-candidate: true
 
-  - cmd: sqlite3 $CACHE_DATABASE_PATH "PRAGMA journal_mode = WAL;"
+  # Set the journal mode for the database to WAL. This reduces concurrency deadlock issues
+  - cmd: sqlite3 $DATABASE_PATH "PRAGMA journal_mode = WAL;"
     if-candidate: true
 
-  - cmd: npx prisma migrate deploy
+  # Set the journal mode for the cache to WAL. This reduces concurrency deadlock issues
+  - cmd: sqlite3 $CACHE_DATABASE_PATH "PRAGMA journal_mode = WAL;"
     if-candidate: true
 
   - cmd: npm start