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Auto-update: Tue Jul 30 12:12:04 PDT 2024

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sanj 2024-07-30 12:12:04 -07:00
parent 2f1384bc23
commit c4be5cbd7c
1 changed files with 85 additions and 69 deletions
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48
sijapi/classes.py
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@ -332,27 +332,34 @@ class APIConfig(BaseModel):
if pool_entry is None:
pool_entry = self.local_db
info(f"Attempting to connect to database: {pool_entry}")
for attempt in range(3): # Retry up to 3 times
try:
conn = await self.db_pool.get_connection(pool_entry)
conn = await asyncpg.connect(
host=pool_entry['ts_ip'],
port=pool_entry['db_port'],
user=pool_entry['db_user'],
password=pool_entry['db_pass'],
database=pool_entry['db_name']
)
try:
yield conn
finally:
await self.db_pool.release_connection(pool_entry, conn)
except asyncpg.exceptions.ConnectionDoesNotExistError:
err(f"Connection to database {pool_entry['ts_ip']}:{pool_entry['db_port']} does not exist or has been closed")
raise
except asyncpg.exceptions.ConnectionFailureError as e:
err(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
err(f"Connection error: {str(e)}")
raise
await conn.close()
return
except asyncpg.exceptions.CannotConnectNowError:
if attempt < 2: # Don't sleep on the last attempt
await asyncio.sleep(1) # Wait before retrying
except Exception as e:
err(f"Unexpected error connecting to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
err(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
err(f"Error: {str(e)}")
if attempt == 2: # Raise the exception on the last attempt
raise
raise Exception(f"Failed to connect to database after 3 attempts: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
async def initialize_sync(self):
for pool_entry in self.POOL:
for attempt in range(3): # Retry up to 3 times
try:
async with self.get_connection(pool_entry) as conn:
tables = await conn.fetch("""
@ -366,11 +373,15 @@ class APIConfig(BaseModel):
await self.create_sync_trigger(conn, table_name)
info(f"Sync initialization complete for {pool_entry['ts_ip']}. All tables now have version and server_id columns with appropriate triggers.")
break # If successful, break the retry loop
except asyncpg.exceptions.ConnectionFailureError:
err(f"Failed to connect to database during initialization: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
if attempt < 2: # Don't sleep on the last attempt
await asyncio.sleep(1) # Wait before retrying
except Exception as e:
err(f"Error initializing sync for {pool_entry['ts_ip']}: {str(e)}")
err(f"Traceback: {traceback.format_exc()}")
break # Don't retry for unexpected errors
async def ensure_sync_columns(self, conn, table_name):
try:
@ -383,7 +394,7 @@ class APIConfig(BaseModel):
ADD COLUMN IF NOT EXISTS server_id TEXT DEFAULT '{os.environ.get('TS_ID')}';
EXCEPTION
WHEN duplicate_column THEN
RAISE NOTICE 'column version or server_id already exists in {table_name}.';
NULL; -- Silently handle duplicate column
END;
END $$;
""")
@ -392,6 +403,7 @@ class APIConfig(BaseModel):
err(f"Error ensuring sync columns for table {table_name}: {str(e)}")
err(f"Traceback: {traceback.format_exc()}")
async def create_sync_trigger(self, conn, table_name):
await conn.execute(f"""
CREATE OR REPLACE FUNCTION update_version_and_server_id()
@ -421,6 +433,7 @@ class APIConfig(BaseModel):
if pool_entry['ts_id'] == os.environ.get('TS_ID'):
continue
for _ in range(3): # Retry up to 3 times
try:
async with self.get_connection(pool_entry) as conn:
# Check if the version column exists in any table
@ -435,7 +448,7 @@ class APIConfig(BaseModel):
if not version_exists:
info(f"Version column does not exist in any table for {pool_entry['ts_id']}")
continue
break # Move to the next pool entry
version = await conn.fetchval("""
SELECT COALESCE(MAX(version), -1)
@ -451,10 +464,13 @@ class APIConfig(BaseModel):
if version > max_version:
max_version = version
most_recent_source = pool_entry
except asyncpg.exceptions.ConnectionFailureError:
err(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
except Exception as e:
break # If successful, break the retry loop
except asyncpg.exceptions.PostgresError as e:
err(f"Error checking version for {pool_entry['ts_id']}: {str(e)}")
await asyncio.sleep(1) # Wait before retrying
except Exception as e:
err(f"Unexpected error for {pool_entry['ts_id']}: {str(e)}")
break # Don't retry for unexpected errors
if most_recent_source:
info(f"Most recent source: {most_recent_source['ts_id']} with version {max_version}")