Auto-update: Mon Jul 29 19:07:57 PDT 2024

This commit is contained in:
sanj 2024-07-29 19:07:57 -07:00
parent 2756be327f
commit 05400d4fa4

View file

@ -380,6 +380,10 @@ class APIConfig(BaseModel):
async def pull_changes(self, source_pool_entry):
if source_pool_entry['ts_id'] == os.environ.get('TS_ID'):
info("Skipping self-sync")
return 0
total_inserts = 0
total_updates = 0
table_changes = {}
@ -394,30 +398,49 @@ class APIConfig(BaseModel):
try:
async with self.get_connection(source_pool_entry) as source_conn:
async with self.get_connection(self.local_db) as dest_conn:
source_tables = await self.get_tables(source_conn)
dest_tables = await self.get_tables(dest_conn)
tables = await source_conn.fetch("""
SELECT tablename FROM pg_tables
WHERE schemaname = 'public'
""")
tables_only_in_source = set(source_tables) - set(dest_tables)
tables_only_in_dest = set(dest_tables) - set(source_tables)
common_tables = set(source_tables) & set(dest_tables)
for table in tables:
table_name = table['tablename']
last_synced_version = await self.get_last_synced_version(table_name, source_id)
info(f"Tables only in source: {tables_only_in_source}")
info(f"Tables only in destination: {tables_only_in_dest}")
info(f"Common tables: {common_tables}")
changes = await source_conn.fetch(f"""
SELECT * FROM "{table_name}"
WHERE version > $1 AND server_id = $2
ORDER BY version ASC
""", last_synced_version, source_id)
for table in tables_only_in_source:
create_table_stmt = await source_conn.fetchval(f"SELECT pg_get_tabledef('{table}'::regclass::oid);")
await dest_conn.execute(create_table_stmt)
info(f"Created table '{table}' in destination database.")
common_tables.add(table)
inserts = 0
updates = 0
for change in changes:
columns = list(change.keys())
values = [change[col] for col in columns]
placeholders = [f'${i+1}' for i in range(len(columns))]
for table in common_tables:
await self.compare_table_structure(source_conn, dest_conn, table)
inserts, updates = await self.compare_and_sync_data(source_conn, dest_conn, table, source_id)
insert_query = f"""
INSERT INTO "{table_name}" ({', '.join(columns)})
VALUES ({', '.join(placeholders)})
ON CONFLICT (id) DO UPDATE SET
{', '.join(f"{col} = EXCLUDED.{col}" for col in columns if col != 'id')}
"""
result = await dest_conn.execute(insert_query, *values)
if 'UPDATE' in result:
updates += 1
else:
inserts += 1
if changes:
await self.update_sync_status(table_name, source_id, changes[-1]['version'])
total_inserts += inserts
total_updates += updates
table_changes[table] = {'inserts': inserts, 'updates': updates}
table_changes[table_name] = {'inserts': inserts, 'updates': updates}
info(f"Synced {table_name} from {source_id} to {dest_id}: {inserts} inserts, {updates} updates")
info(f"Comprehensive sync complete from {source_id} ({source_ip}) to {dest_id} ({dest_ip})")
info(f"Total changes: {total_inserts} inserts, {total_updates} updates")
@ -545,58 +568,58 @@ class APIConfig(BaseModel):
async def push_changes_to_all(self):
async with self.get_connection() as local_conn:
tables = await local_conn.fetch("""
SELECT tablename FROM pg_tables
WHERE schemaname = 'public'
""")
for pool_entry in self.POOL:
if pool_entry['ts_id'] != os.environ.get('TS_ID'):
await self.push_changes_to_one(pool_entry)
for pool_entry in self.POOL:
if pool_entry['ts_id'] == os.environ.get('TS_ID'):
continue
async def push_changes_to_one(self, pool_entry):
try:
async with self.get_connection() as local_conn:
async with self.get_connection(pool_entry) as remote_conn:
tables = await local_conn.fetch("""
SELECT tablename FROM pg_tables
WHERE schemaname = 'public'
""")
try:
async with self.get_connection(pool_entry) as remote_conn:
for table in tables:
table_name = table['tablename']
last_synced_version = await self.get_last_synced_version(table_name, pool_entry['ts_id'])
for table in tables:
table_name = table['tablename']
last_synced_version = await self.get_last_synced_version(table_name, pool_entry['ts_id'])
changes = await local_conn.fetch(f"""
SELECT * FROM "{table_name}"
WHERE version > $1 AND server_id = $2
ORDER BY version ASC
""", last_synced_version, os.environ.get('TS_ID'))
changes = await local_conn.fetch(f"""
SELECT * FROM "{table_name}"
WHERE version > $1 AND server_id = $2
ORDER BY version ASC
""", last_synced_version, os.environ.get('TS_ID'))
for change in changes:
columns = change.keys()
values = [change[col] for col in columns]
placeholders = [f'${i+1}' for i in range(len(columns))]
for change in changes:
columns = list(change.keys())
values = [change[col] for col in columns]
placeholders = [f'${i+1}' for i in range(len(columns))]
insert_query = f"""
INSERT INTO "{table_name}" ({', '.join(columns)})
VALUES ({', '.join(placeholders)})
ON CONFLICT (id) DO UPDATE SET
{', '.join(f"{col} = EXCLUDED.{col}" for col in columns if col != 'id')}
"""
insert_query = f"""
INSERT INTO "{table_name}" ({', '.join(columns)})
VALUES ({', '.join(placeholders)})
ON CONFLICT (id) DO UPDATE SET
{', '.join(f"{col} = EXCLUDED.{col}" for col in columns if col != 'id')}
"""
await remote_conn.execute(insert_query, *values)
await remote_conn.execute(insert_query, *values)
if changes:
await self.update_sync_status(table_name, pool_entry['ts_id'], changes[-1]['version'])
if changes:
await self.update_sync_status(table_name, pool_entry['ts_id'], changes[-1]['version'])
info(f"Successfully pushed changes to {pool_entry['ts_id']}")
except Exception as e:
err(f"Error pushing changes to {pool_entry['ts_id']}: {str(e)}")
err(f"Traceback: {traceback.format_exc()}")
info(f"Successfully pushed changes to {pool_entry['ts_id']}")
except Exception as e:
err(f"Error pushing changes to {pool_entry['ts_id']}: {str(e)}")
err(f"Traceback: {traceback.format_exc()}")
async def get_last_synced_version(self, table_name, server_id):
async with self.get_connection() as conn:
result = await conn.fetchval("""
return await conn.fetchval("""
SELECT last_synced_version FROM sync_status
WHERE table_name = $1 AND server_id = $2
""", table_name, server_id)
return result if result is not None else 0
""", table_name, server_id) or 0
async def update_sync_status(self, table_name, server_id, version):
@ -610,18 +633,13 @@ class APIConfig(BaseModel):
async def sync_schema(self):
local_id = os.environ.get('TS_ID')
source_entry = self.local_db
source_schema = await self.get_schema(source_entry)
local_schema_version = await self.get_schema_version(self.local_db)
for pool_entry in self.POOL:
if pool_entry['ts_id'] != local_id: # Skip the local instance
try:
target_schema = await self.get_schema(pool_entry)
await self.apply_schema_changes(pool_entry, source_schema, target_schema)
info(f"Synced schema to {pool_entry['ts_ip']}")
except Exception as e:
err(f"Failed to sync schema to {pool_entry['ts_ip']}: {str(e)}")
if pool_entry['ts_id'] != os.environ.get('TS_ID'):
remote_schema_version = await self.get_schema_version(pool_entry)
if remote_schema_version != local_schema_version:
await self.apply_schema_changes(pool_entry)
async def get_schema(self, pool_entry: Dict[str, Any]):
async with self.get_connection(pool_entry) as conn:
@ -652,8 +670,16 @@ class APIConfig(BaseModel):
'constraints': constraints
}
async def apply_schema_changes(self, pool_entry: Dict[str, Any], source_schema, target_schema):
async with self.get_connection(pool_entry) as conn:
# Check schema version
source_version = await self.get_schema_version(self.local_db)
target_version = await self.get_schema_version(pool_entry)
if source_version == target_version:
info(f"Schema versions match for {pool_entry['ts_ip']}. Skipping synchronization.")
return
source_tables = {t['table_name']: t for t in source_schema['tables']}
target_tables = {t['table_name']: t for t in target_schema['tables']}
@ -734,10 +760,16 @@ class APIConfig(BaseModel):
(con['definition'] for con in source_schema['constraints'] if con['table_name'] == table_name and con['contype'] == 'p'),
None
)
if primary_key_constraint and primary_key_constraint not in target_schema['constraints']:
sql = f'ALTER TABLE "{table_name}" ADD CONSTRAINT {primary_key_constraint}'
debug(f"Executing SQL: {sql}")
await conn.execute(sql)
if primary_key_constraint:
constraint_name = f"{table_name}_pkey"
constraint_exists = await conn.fetchval(f"""
SELECT 1 FROM pg_constraint
WHERE conname = '{constraint_name}'
""")
if not constraint_exists:
sql = f'ALTER TABLE "{table_name}" ADD CONSTRAINT {constraint_name} {primary_key_constraint}'
debug(f"Executing SQL: {sql}")
await conn.execute(sql)
except Exception as e:
err(f"Error processing table {table_name}: {str(e)}")
@ -777,7 +809,15 @@ class APIConfig(BaseModel):
except Exception as e:
err(f"Error processing constraints: {str(e)}")
info(f"Schema synchronization completed for {pool_entry['ts_ip']}")
# Update schema version
await conn.execute("UPDATE schema_version SET version = $1", source_version)
info(f"Schema synchronization completed for {pool_entry['ts_ip']}")
async def get_schema_version(self, pool_entry):
async with self.get_connection(pool_entry) as conn:
return await conn.fetchval("SELECT version FROM schema_version")
async def create_sequence_if_not_exists(self, conn, sequence_name):
await conn.execute(f"""