Auto-update: Tue Jul 30 23:10:36 PDT 2024
This commit is contained in:
sanj
parent
8f38810626
commit
1ae0f506cf
2 changed files with 242 additions and 451 deletions
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@ -6,7 +6,7 @@ import multiprocessing
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from dotenv import load_dotenv
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from dateutil import tz
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from pathlib import Path
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from .classes import Database, Geocoder, APIConfig, Configuration
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from .classes import Geocoder, APIConfig, Configuration
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from .logs import Logger
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# INITIALization
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@ -167,6 +167,7 @@ class Configuration(BaseModel):
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class APIConfig(BaseModel):
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HOST: str
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PORT: int
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@ -182,6 +183,8 @@ class APIConfig(BaseModel):
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GARBAGE: Dict[str, Any]
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_db_pools: Dict[str, asyncpg.Pool] = {}
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SPECIAL_TABLES = ['spatial_ref_sys'] # Tables that can't have server_id and version columns
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@classmethod
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def load(cls, config_path: Union[str, Path], secrets_path: Union[str, Path]):
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config_path = cls._resolve_path(config_path, 'config')
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@ -301,36 +304,37 @@ class APIConfig(BaseModel):
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if pool_entry is None:
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pool_entry = self.local_db
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info(f"Attempting to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
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pool_key = f"{pool_entry['ts_ip']}:{pool_entry['db_port']}"
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if pool_key not in self._db_pools:
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try:
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conn = await asyncpg.connect(
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self._db_pools[pool_key] = await asyncpg.create_pool(
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host=pool_entry['ts_ip'],
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port=pool_entry['db_port'],
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user=pool_entry['db_user'],
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password=pool_entry['db_pass'],
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database=pool_entry['db_name'],
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timeout=5 # Add a timeout to prevent hanging
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min_size=1,
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max_size=10, # adjust as needed
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timeout=5 # connection timeout in seconds
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)
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info(f"Successfully connected to {pool_entry['ts_ip']}:{pool_entry['db_port']}")
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try:
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yield conn
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finally:
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await conn.close()
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info(f"Closed connection to {pool_entry['ts_ip']}:{pool_entry['db_port']}")
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except asyncpg.exceptions.ConnectionDoesNotExistError:
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err(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']} - Connection does not exist")
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raise
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except asyncpg.exceptions.ConnectionFailureError:
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err(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']} - Connection failure")
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raise
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except asyncpg.exceptions.PostgresError as e:
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err(f"PostgreSQL error when connecting to {pool_entry['ts_ip']}:{pool_entry['db_port']}: {str(e)}")
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raise
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except Exception as e:
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err(f"Unexpected error when connecting to {pool_entry['ts_ip']}:{pool_entry['db_port']}: {str(e)}")
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raise
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err(f"Failed to create connection pool for {pool_key}: {str(e)}")
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yield None
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return
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try:
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async with self._db_pools[pool_key].acquire() as conn:
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yield conn
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except asyncpg.exceptions.ConnectionDoesNotExistError:
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err(f"Failed to acquire connection from pool for {pool_key}: Connection does not exist")
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yield None
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except asyncpg.exceptions.ConnectionFailureError:
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err(f"Failed to acquire connection from pool for {pool_key}: Connection failure")
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yield None
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except Exception as e:
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err(f"Unexpected error when acquiring connection from pool for {pool_key}: {str(e)}")
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yield None
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async def close_db_pools(self):
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info("Closing database connection pools...")
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@ -343,14 +347,18 @@ class APIConfig(BaseModel):
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self._db_pools.clear()
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info("All database connection pools closed.")
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async def initialize_sync(self):
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local_ts_id = os.environ.get('TS_ID')
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for pool_entry in self.POOL:
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online_hosts = await self.get_online_hosts()
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for pool_entry in online_hosts:
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if pool_entry['ts_id'] == local_ts_id:
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continue # Skip local database
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try:
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async with self.get_connection(pool_entry) as conn:
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if conn is None:
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continue # Skip this database if connection failed
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info(f"Starting sync initialization for {pool_entry['ts_ip']}...")
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# Check PostGIS installation
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@ -358,62 +366,6 @@ class APIConfig(BaseModel):
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if not postgis_installed:
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warn(f"PostGIS is not installed on {pool_entry['ts_id']} ({pool_entry['ts_ip']}). Some spatial operations may fail.")
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# Initialize sync_status table
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await self.initialize_sync_status_table(conn)
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# Continue with sync initialization
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tables = await conn.fetch("""
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SELECT tablename FROM pg_tables
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WHERE schemaname = 'public'
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""")
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all_tables_synced = True
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for table in tables:
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table_name = table['tablename']
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if not await self.ensure_sync_columns(conn, table_name):
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all_tables_synced = False
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if all_tables_synced:
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info(f"Sync initialization complete for {pool_entry['ts_ip']}. All tables now have version and server_id columns with appropriate triggers.")
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else:
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warn(f"Sync initialization partially complete for {pool_entry['ts_ip']}. Some tables may be missing version or server_id columns.")
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except Exception as e:
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err(f"Error initializing sync for {pool_entry['ts_ip']}: {str(e)}")
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err(f"Traceback: {traceback.format_exc()}")
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async def initialize_sync_status_table(self, conn):
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await conn.execute("""
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CREATE TABLE IF NOT EXISTS sync_status (
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table_name TEXT,
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server_id TEXT,
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last_synced_version INTEGER,
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last_sync_time TIMESTAMP WITH TIME ZONE,
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PRIMARY KEY (table_name, server_id)
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)
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""")
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# Check if the last_sync_time column exists, and add it if it doesn't
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column_exists = await conn.fetchval("""
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SELECT EXISTS (
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SELECT 1
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FROM information_schema.columns
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WHERE table_name = 'sync_status' AND column_name = 'last_sync_time'
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)
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""")
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if not column_exists:
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await conn.execute("""
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ALTER TABLE sync_status
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ADD COLUMN last_sync_time TIMESTAMP WITH TIME ZONE
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""")
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async def ensure_sync_structure(self, conn):
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tables = await conn.fetch("""
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SELECT tablename FROM pg_tables
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WHERE schemaname = 'public'
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@ -422,86 +374,42 @@ class APIConfig(BaseModel):
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for table in tables:
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table_name = table['tablename']
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await self.ensure_sync_columns(conn, table_name)
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await self.ensure_sync_trigger(conn, table_name)
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info(f"Sync initialization complete for {pool_entry['ts_ip']}. All tables now have necessary sync columns and triggers.")
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except Exception as e:
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err(f"Error initializing sync for {pool_entry['ts_ip']}: {str(e)}")
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err(f"Traceback: {traceback.format_exc()}")
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async def ensure_sync_columns(self, conn, table_name):
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if table_name in self.SPECIAL_TABLES:
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info(f"Skipping sync columns for special table: {table_name}")
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return None
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try:
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# Check if the table has a primary key
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has_primary_key = await conn.fetchval(f"""
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SELECT EXISTS (
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SELECT 1
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FROM information_schema.table_constraints
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WHERE table_name = '{table_name}'
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AND constraint_type = 'PRIMARY KEY'
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)
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# Get primary key information
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primary_key = await conn.fetchval(f"""
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SELECT a.attname
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FROM pg_index i
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JOIN pg_attribute a ON a.attrelid = i.indrelid
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AND a.attnum = ANY(i.indkey)
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WHERE i.indrelid = '{table_name}'::regclass
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AND i.indisprimary;
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""")
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# Check if version column exists
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version_exists = await conn.fetchval(f"""
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SELECT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name = '{table_name}' AND column_name = 'version'
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)
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""")
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# Check if server_id column exists
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server_id_exists = await conn.fetchval(f"""
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SELECT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name = '{table_name}' AND column_name = 'server_id'
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)
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""")
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# Add version column if it doesn't exist
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if not version_exists:
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# Ensure version column exists
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await conn.execute(f"""
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ALTER TABLE "{table_name}" ADD COLUMN version INTEGER DEFAULT 1
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ALTER TABLE "{table_name}"
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ADD COLUMN IF NOT EXISTS version INTEGER DEFAULT 1;
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""")
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# Add server_id column if it doesn't exist
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if not server_id_exists:
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# Ensure server_id column exists
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await conn.execute(f"""
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ALTER TABLE "{table_name}" ADD COLUMN server_id TEXT DEFAULT '{os.environ.get('TS_ID')}'
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ALTER TABLE "{table_name}"
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ADD COLUMN IF NOT EXISTS server_id TEXT DEFAULT '{os.environ.get('TS_ID')}';
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""")
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# Create or replace the trigger function
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await conn.execute("""
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CREATE OR REPLACE FUNCTION update_version_and_server_id()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.version = COALESCE(OLD.version, 0) + 1;
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NEW.server_id = $1;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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""")
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# Create the trigger if it doesn't exist
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trigger_exists = await conn.fetchval(f"""
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SELECT EXISTS (
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SELECT 1 FROM pg_trigger
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WHERE tgname = 'update_version_and_server_id_trigger'
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AND tgrelid = '{table_name}'::regclass
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)
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""")
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if not trigger_exists:
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await conn.execute(f"""
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CREATE TRIGGER update_version_and_server_id_trigger
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BEFORE INSERT OR UPDATE ON "{table_name}"
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FOR EACH ROW EXECUTE FUNCTION update_version_and_server_id('{os.environ.get('TS_ID')}')
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""")
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info(f"Successfully ensured sync columns and trigger for table {table_name}. Has primary key: {has_primary_key}")
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return has_primary_key
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except Exception as e:
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err(f"Error ensuring sync columns for table {table_name}: {str(e)}")
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err(f"Traceback: {traceback.format_exc()}")
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return False
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async def ensure_sync_trigger(self, conn, table_name):
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await conn.execute(f"""
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CREATE OR REPLACE FUNCTION update_version_and_server_id()
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RETURNS TRIGGER AS $$
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@ -511,107 +419,74 @@ class APIConfig(BaseModel):
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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""")
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DROP TRIGGER IF EXISTS update_version_and_server_id_trigger ON "{table_name}";
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# Check if the trigger exists and create it if it doesn't
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trigger_exists = await conn.fetchval(f"""
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SELECT EXISTS (
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SELECT 1
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FROM pg_trigger
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WHERE tgname = 'update_version_and_server_id_trigger'
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AND tgrelid = '{table_name}'::regclass
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)
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""")
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if not trigger_exists:
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await conn.execute(f"""
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CREATE TRIGGER update_version_and_server_id_trigger
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BEFORE INSERT OR UPDATE ON "{table_name}"
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FOR EACH ROW EXECUTE FUNCTION update_version_and_server_id();
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""")
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async def get_most_recent_source(self):
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most_recent_source = None
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max_version = -1
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local_ts_id = os.environ.get('TS_ID')
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info(f"Successfully ensured sync columns and trigger for table {table_name}")
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return primary_key
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for pool_entry in self.POOL:
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if pool_entry['ts_id'] == local_ts_id:
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continue # Skip local database
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if not await self.is_server_accessible(pool_entry['ts_ip'], pool_entry['db_port']):
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warn(f"Server {pool_entry['ts_id']} ({pool_entry['ts_ip']}:{pool_entry['db_port']}) is not accessible. Skipping.")
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continue
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try:
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async with self.get_connection(pool_entry) as conn:
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tables = await conn.fetch("""
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SELECT tablename FROM pg_tables
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WHERE schemaname = 'public'
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""")
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for table in tables:
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table_name = table['tablename']
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try:
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result = await conn.fetchrow(f"""
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SELECT MAX(version) as max_version, server_id
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FROM "{table_name}"
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WHERE version = (SELECT MAX(version) FROM "{table_name}")
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GROUP BY server_id
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ORDER BY MAX(version) DESC
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LIMIT 1
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""")
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if result:
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version, server_id = result['max_version'], result['server_id']
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info(f"Max version for {pool_entry['ts_id']}, table {table_name}: {version} (from server {server_id})")
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if version > max_version:
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max_version = version
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most_recent_source = pool_entry
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else:
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info(f"No data in table {table_name} for {pool_entry['ts_id']}")
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except asyncpg.exceptions.UndefinedColumnError:
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warn(f"Version or server_id column does not exist in table {table_name} for {pool_entry['ts_id']}. Attempting to add...")
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await self.ensure_sync_columns(conn, table_name)
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except Exception as e:
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err(f"Error checking version for {pool_entry['ts_id']}, table {table_name}: {str(e)}")
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except asyncpg.exceptions.ConnectionFailureError as e:
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err(f"Failed to establish database connection with {pool_entry['ts_id']} ({pool_entry['ts_ip']}:{pool_entry['db_port']}): {str(e)}")
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except Exception as e:
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err(f"Unexpected error occurred while checking version for {pool_entry['ts_id']}: {str(e)}")
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err(f"Error ensuring sync columns for table {table_name}: {str(e)}")
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err(f"Traceback: {traceback.format_exc()}")
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return most_recent_source
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async def apply_batch_changes(self, conn, table_name, changes, primary_key):
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if not changes:
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return 0
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async def is_server_accessible(self, host, port, timeout=2):
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try:
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future = asyncio.open_connection(host, port)
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await asyncio.wait_for(future, timeout=timeout)
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return True
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except (asyncio.TimeoutError, ConnectionRefusedError, socket.gaierror):
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return False
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columns = list(changes[0].keys())
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placeholders = [f'${i+1}' for i in range(len(columns))]
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if primary_key:
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insert_query = f"""
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INSERT INTO "{table_name}" ({', '.join(f'"{col}"' for col in columns)})
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VALUES ({', '.join(placeholders)})
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ON CONFLICT ("{primary_key}") DO UPDATE SET
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{', '.join(f'"{col}" = EXCLUDED."{col}"' for col in columns if col not in [primary_key, 'version', 'server_id'])},
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version = EXCLUDED.version,
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server_id = EXCLUDED.server_id
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WHERE "{table_name}".version < EXCLUDED.version
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OR ("{table_name}".version = EXCLUDED.version AND "{table_name}".server_id < EXCLUDED.server_id)
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"""
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else:
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# For tables without a primary key, we'll use all columns for conflict resolution
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insert_query = f"""
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INSERT INTO "{table_name}" ({', '.join(f'"{col}"' for col in columns)})
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VALUES ({', '.join(placeholders)})
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ON CONFLICT DO NOTHING
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"""
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debug(f"Generated insert query for {table_name}: {insert_query}")
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affected_rows = 0
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async for change in tqdm(changes, desc=f"Syncing {table_name}", unit="row"):
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values = [change[col] for col in columns]
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debug(f"Executing query for {table_name} with values: {values}")
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result = await conn.execute(insert_query, *values)
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affected_rows += int(result.split()[-1])
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return affected_rows
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async def check_version_column_exists(self, conn):
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try:
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result = await conn.fetchval("""
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SELECT EXISTS (
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SELECT 1
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FROM information_schema.columns
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WHERE table_schema = 'public'
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AND column_name = 'version'
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AND table_name IN (SELECT tablename FROM pg_tables WHERE schemaname = 'public')
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)
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""")
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if not result:
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tables_without_version = await conn.fetch("""
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SELECT tablename
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FROM pg_tables
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WHERE schemaname = 'public'
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AND tablename NOT IN (
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SELECT table_name
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FROM information_schema.columns
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WHERE table_schema = 'public' AND column_name = 'version'
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)
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""")
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table_names = ", ".join([t['tablename'] for t in tables_without_version])
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warn(f"Tables without 'version' column: {table_names}")
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return result
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except Exception as e:
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err(f"Error checking for 'version' column existence: {str(e)}")
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return False
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err(f"Error applying batch changes to {table_name}: {str(e)}")
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err(f"Traceback: {traceback.format_exc()}")
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return 0
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async def pull_changes(self, source_pool_entry, batch_size=10000):
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if source_pool_entry['ts_id'] == os.environ.get('TS_ID'):
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|
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@ -634,14 +509,14 @@ class APIConfig(BaseModel):
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WHERE schemaname = 'public'
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""")
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for table in tables:
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async for table in tqdm(tables, desc="Syncing tables", unit="table"):
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table_name = table['tablename']
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try:
|
||||
debug(f"Processing table: {table_name}")
|
||||
has_primary_key = await self.ensure_sync_columns(dest_conn, table_name)
|
||||
debug(f"Table {table_name} has primary key: {has_primary_key}")
|
||||
if table_name in self.SPECIAL_TABLES:
|
||||
await self.sync_special_table(source_conn, dest_conn, table_name)
|
||||
else:
|
||||
primary_key = await self.ensure_sync_columns(dest_conn, table_name)
|
||||
last_synced_version = await self.get_last_synced_version(dest_conn, table_name, source_id)
|
||||
debug(f"Last synced version for {table_name}: {last_synced_version}")
|
||||
|
||||
changes = await source_conn.fetch(f"""
|
||||
SELECT * FROM "{table_name}"
|
||||
|
|
@ -650,17 +525,11 @@ class APIConfig(BaseModel):
|
|||
LIMIT $3
|
||||
""", last_synced_version, source_id, batch_size)
|
||||
|
||||
debug(f"Number of changes for {table_name}: {len(changes)}")
|
||||
|
||||
if changes:
|
||||
debug(f"Sample change for {table_name}: {changes[0]}")
|
||||
changes_count = await self.apply_batch_changes(dest_conn, table_name, changes, has_primary_key)
|
||||
changes_count = await self.apply_batch_changes(dest_conn, table_name, changes, primary_key)
|
||||
total_changes += changes_count
|
||||
|
||||
if changes_count > 0:
|
||||
last_synced_version = changes[-1]['version']
|
||||
await self.update_sync_status(dest_conn, table_name, source_id, last_synced_version)
|
||||
|
||||
info(f"Synced batch for {table_name}: {changes_count} changes. Total so far: {total_changes}")
|
||||
else:
|
||||
info(f"No changes to sync for {table_name}")
|
||||
|
|
@ -668,7 +537,6 @@ class APIConfig(BaseModel):
|
|||
except Exception as e:
|
||||
err(f"Error syncing table {table_name}: {str(e)}")
|
||||
err(f"Traceback: {traceback.format_exc()}")
|
||||
# Continue with the next table
|
||||
|
||||
info(f"Sync complete from {source_id} ({source_ip}) to {dest_id} ({dest_ip}). Total changes: {total_changes}")
|
||||
|
||||
|
|
@ -684,63 +552,91 @@ class APIConfig(BaseModel):
|
|||
|
||||
return total_changes
|
||||
|
||||
|
||||
async def apply_batch_changes(self, conn, table_name, changes, has_primary_key):
|
||||
if not changes:
|
||||
return 0
|
||||
|
||||
async def get_online_hosts(self) -> List[Dict[str, Any]]:
|
||||
online_hosts = []
|
||||
for pool_entry in self.POOL:
|
||||
try:
|
||||
columns = list(changes[0].keys())
|
||||
placeholders = [f'${i}' for i in range(1, len(columns) + 1)]
|
||||
async with self.get_connection(pool_entry) as conn:
|
||||
if conn is not None:
|
||||
online_hosts.append(pool_entry)
|
||||
except Exception as e:
|
||||
err(f"Error checking host {pool_entry['ts_ip']}:{pool_entry['db_port']}: {str(e)}")
|
||||
return online_hosts
|
||||
|
||||
if has_primary_key:
|
||||
insert_query = f"""
|
||||
INSERT INTO "{table_name}" ({', '.join(f'"{col}"' for col in columns)})
|
||||
VALUES ({', '.join(placeholders)})
|
||||
ON CONFLICT ON CONSTRAINT {table_name}_pkey DO UPDATE SET
|
||||
{', '.join(f'"{col}" = EXCLUDED."{col}"' for col in columns if col not in ['version', 'server_id'])},
|
||||
version = EXCLUDED.version,
|
||||
server_id = EXCLUDED.server_id
|
||||
WHERE "{table_name}".version < EXCLUDED.version
|
||||
OR ("{table_name}".version = EXCLUDED.version AND "{table_name}".server_id < EXCLUDED.server_id)
|
||||
"""
|
||||
async def push_changes_to_all(self):
|
||||
for pool_entry in self.POOL:
|
||||
if pool_entry['ts_id'] != os.environ.get('TS_ID'):
|
||||
try:
|
||||
await self.push_changes_to_one(pool_entry)
|
||||
except Exception as e:
|
||||
err(f"Error pushing changes to {pool_entry['ts_id']}: {str(e)}")
|
||||
|
||||
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'
|
||||
""")
|
||||
|
||||
for table in tables:
|
||||
table_name = table['tablename']
|
||||
try:
|
||||
if table_name in self.SPECIAL_TABLES:
|
||||
await self.sync_special_table(local_conn, remote_conn, table_name)
|
||||
else:
|
||||
# For tables without a primary key, we'll use all columns for conflict detection
|
||||
insert_query = f"""
|
||||
INSERT INTO "{table_name}" ({', '.join(f'"{col}"' for col in columns)})
|
||||
VALUES ({', '.join(placeholders)})
|
||||
ON CONFLICT ({', '.join(f'"{col}"' for col in columns if col not in ['version', 'server_id'])}) DO UPDATE SET
|
||||
version = EXCLUDED.version,
|
||||
server_id = EXCLUDED.server_id
|
||||
WHERE "{table_name}".version < EXCLUDED.version
|
||||
OR ("{table_name}".version = EXCLUDED.version AND "{table_name}".server_id < EXCLUDED.server_id)
|
||||
"""
|
||||
primary_key = await self.ensure_sync_columns(remote_conn, table_name)
|
||||
last_synced_version = await self.get_last_synced_version(remote_conn, table_name, os.environ.get('TS_ID'))
|
||||
|
||||
debug(f"Generated insert query for {table_name}: {insert_query}")
|
||||
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'))
|
||||
|
||||
# Prepare the statement
|
||||
stmt = await conn.prepare(insert_query)
|
||||
if changes:
|
||||
changes_count = await self.apply_batch_changes(remote_conn, table_name, changes, primary_key)
|
||||
|
||||
affected_rows = 0
|
||||
for change in changes:
|
||||
try:
|
||||
values = [change[col] for col in columns]
|
||||
result = await stmt.fetchval(*values)
|
||||
affected_rows += 1
|
||||
except Exception as e:
|
||||
err(f"Error inserting row into {table_name}: {str(e)}")
|
||||
err(f"Row data: {change}")
|
||||
# Continue with the next row
|
||||
|
||||
return affected_rows
|
||||
if changes_count > 0:
|
||||
info(f"Pushed {changes_count} changes for table {table_name} to {pool_entry['ts_id']}")
|
||||
|
||||
except Exception as e:
|
||||
err(f"Error applying batch changes to {table_name}: {str(e)}")
|
||||
err(f"Error pushing changes for table {table_name} to {pool_entry['ts_id']}: {str(e)}")
|
||||
err(f"Traceback: {traceback.format_exc()}")
|
||||
return 0
|
||||
|
||||
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, conn, table_name, server_id):
|
||||
if table_name in self.SPECIAL_TABLES:
|
||||
return 0 # Special handling for tables without version column
|
||||
|
||||
return await conn.fetchval(f"""
|
||||
SELECT COALESCE(MAX(version), 0)
|
||||
FROM "{table_name}"
|
||||
WHERE server_id = $1
|
||||
""", server_id)
|
||||
|
||||
async def check_postgis(self, conn):
|
||||
try:
|
||||
result = await conn.fetchval("SELECT PostGIS_version();")
|
||||
if result:
|
||||
info(f"PostGIS version: {result}")
|
||||
return True
|
||||
else:
|
||||
warn("PostGIS is not installed or not working properly")
|
||||
return False
|
||||
except Exception as e:
|
||||
err(f"Error checking PostGIS: {str(e)}")
|
||||
return False
|
||||
|
||||
async def sync_special_table(self, source_conn, dest_conn, table_name):
|
||||
if table_name == 'spatial_ref_sys':
|
||||
return await self.sync_spatial_ref_sys(source_conn, dest_conn)
|
||||
# Add more special cases as needed
|
||||
|
||||
async def sync_spatial_ref_sys(self, source_conn, dest_conn):
|
||||
try:
|
||||
|
|
@ -803,125 +699,58 @@ class APIConfig(BaseModel):
|
|||
err(f"Traceback: {traceback.format_exc()}")
|
||||
return 0
|
||||
|
||||
async def get_most_recent_source(self):
|
||||
most_recent_source = None
|
||||
max_version = -1
|
||||
local_ts_id = os.environ.get('TS_ID')
|
||||
online_hosts = await self.get_online_hosts()
|
||||
|
||||
async def push_changes_to_all(self):
|
||||
for pool_entry in self.POOL:
|
||||
if pool_entry['ts_id'] != os.environ.get('TS_ID'):
|
||||
try:
|
||||
await self.push_changes_to_one(pool_entry)
|
||||
except Exception as e:
|
||||
err(f"Error pushing changes to {pool_entry['ts_id']}: {str(e)}")
|
||||
for pool_entry in online_hosts:
|
||||
if pool_entry['ts_id'] == local_ts_id:
|
||||
continue # Skip local database
|
||||
|
||||
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("""
|
||||
async with self.get_connection(pool_entry) as conn:
|
||||
tables = await conn.fetch("""
|
||||
SELECT tablename FROM pg_tables
|
||||
WHERE schemaname = 'public'
|
||||
""")
|
||||
|
||||
for table in tables:
|
||||
table_name = table['tablename']
|
||||
if table_name in self.SPECIAL_TABLES:
|
||||
continue # Skip special tables for version comparison
|
||||
try:
|
||||
last_synced_version = await self.get_last_synced_version(remote_conn, table_name, os.environ.get('TS_ID'))
|
||||
|
||||
changes = await local_conn.fetch(f"""
|
||||
SELECT * FROM "{table_name}"
|
||||
WHERE version > $1 AND server_id = $2
|
||||
ORDER BY version ASC
|
||||
""", last_synced_version, os.environ.get('TS_ID'))
|
||||
|
||||
if changes:
|
||||
debug(f"Pushing changes for table {table_name}")
|
||||
debug(f"Columns: {', '.join(changes[0].keys())}")
|
||||
|
||||
columns = list(changes[0].keys())
|
||||
placeholders = [f'${i+1}' for i in range(len(columns))]
|
||||
|
||||
insert_query = f"""
|
||||
INSERT INTO "{table_name}" ({', '.join(f'"{col}"' for col in columns)})
|
||||
VALUES ({', '.join(placeholders)})
|
||||
ON CONFLICT (id) DO UPDATE SET
|
||||
{', '.join(f'"{col}" = EXCLUDED."{col}"' for col in columns if col != 'id')}
|
||||
"""
|
||||
|
||||
debug(f"Insert query: {insert_query}")
|
||||
|
||||
for change in changes:
|
||||
values = [change[col] for col in columns]
|
||||
await remote_conn.execute(insert_query, *values)
|
||||
|
||||
await self.update_sync_status(remote_conn, table_name, os.environ.get('TS_ID'), changes[-1]['version'])
|
||||
|
||||
except Exception as e:
|
||||
err(f"Error pushing changes for table {table_name}: {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 update_sync_status(self, conn, table_name, server_id, version):
|
||||
await conn.execute("""
|
||||
INSERT INTO sync_status (table_name, server_id, last_synced_version, last_sync_time)
|
||||
VALUES ($1, $2, $3, NOW())
|
||||
ON CONFLICT (table_name, server_id) DO UPDATE
|
||||
SET last_synced_version = EXCLUDED.last_synced_version,
|
||||
last_sync_time = EXCLUDED.last_sync_time
|
||||
""", table_name, server_id, version)
|
||||
|
||||
|
||||
async def get_last_synced_version(self, conn, table_name, server_id):
|
||||
return await conn.fetchval(f"""
|
||||
SELECT COALESCE(MAX(version), 0)
|
||||
result = await conn.fetchrow(f"""
|
||||
SELECT MAX(version) as max_version, server_id
|
||||
FROM "{table_name}"
|
||||
WHERE server_id = $1
|
||||
""", server_id)
|
||||
|
||||
async def update_last_synced_version(self, conn, table_name, server_id, version):
|
||||
await conn.execute(f"""
|
||||
INSERT INTO "{table_name}" (server_id, version)
|
||||
VALUES ($1, $2)
|
||||
ON CONFLICT (server_id) DO UPDATE
|
||||
SET version = EXCLUDED.version
|
||||
WHERE "{table_name}".version < EXCLUDED.version
|
||||
""", server_id, version)
|
||||
|
||||
async def get_schema_version(self, pool_entry):
|
||||
async with self.get_connection(pool_entry) as conn:
|
||||
return await conn.fetchval("""
|
||||
SELECT COALESCE(MAX(version), 0) FROM (
|
||||
SELECT MAX(version) as version FROM pg_tables
|
||||
WHERE schemaname = 'public'
|
||||
) as subquery
|
||||
WHERE version = (SELECT MAX(version) FROM "{table_name}")
|
||||
GROUP BY server_id
|
||||
ORDER BY MAX(version) DESC
|
||||
LIMIT 1
|
||||
""")
|
||||
|
||||
async def create_sequence_if_not_exists(self, conn, sequence_name):
|
||||
await conn.execute(f"""
|
||||
DO $$
|
||||
BEGIN
|
||||
IF NOT EXISTS (SELECT 1 FROM pg_sequences WHERE schemaname = 'public' AND sequencename = '{sequence_name}') THEN
|
||||
CREATE SEQUENCE {sequence_name};
|
||||
END IF;
|
||||
END $$;
|
||||
""")
|
||||
|
||||
async def check_postgis(self, conn):
|
||||
try:
|
||||
result = await conn.fetchval("SELECT PostGIS_version();")
|
||||
if result:
|
||||
info(f"PostGIS version: {result}")
|
||||
return True
|
||||
version, server_id = result['max_version'], result['server_id']
|
||||
info(f"Max version for {pool_entry['ts_id']}, table {table_name}: {version} (from server {server_id})")
|
||||
if version > max_version:
|
||||
max_version = version
|
||||
most_recent_source = pool_entry
|
||||
else:
|
||||
warn("PostGIS is not installed or not working properly")
|
||||
return False
|
||||
info(f"No data in table {table_name} for {pool_entry['ts_id']}")
|
||||
except asyncpg.exceptions.UndefinedColumnError:
|
||||
warn(f"Version or server_id column does not exist in table {table_name} for {pool_entry['ts_id']}. Skipping.")
|
||||
except Exception as e:
|
||||
err(f"Error checking PostGIS: {str(e)}")
|
||||
return False
|
||||
err(f"Error checking version for {pool_entry['ts_id']}, table {table_name}: {str(e)}")
|
||||
|
||||
except asyncpg.exceptions.ConnectionFailureError:
|
||||
warn(f"Failed to connect to database: {pool_entry['ts_ip']}:{pool_entry['db_port']}")
|
||||
except Exception as e:
|
||||
err(f"Unexpected error occurred while checking version for {pool_entry['ts_id']}: {str(e)}")
|
||||
err(f"Traceback: {traceback.format_exc()}")
|
||||
|
||||
return most_recent_source
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1231,44 +1060,6 @@ class Geocoder:
|
|||
def __del__(self):
|
||||
self.executor.shutdown()
|
||||
|
||||
class Database(BaseModel):
|
||||
host: str = Field(..., description="Database host")
|
||||
port: int = Field(5432, description="Database port")
|
||||
user: str = Field(..., description="Database user")
|
||||
password: str = Field(..., description="Database password")
|
||||
database: str = Field(..., description="Database name")
|
||||
db_schema: Optional[str] = Field(None, description="Database schema")
|
||||
|
||||
@asynccontextmanager
|
||||
async def get_connection(self):
|
||||
conn = await asyncpg.connect(
|
||||
host=self.host,
|
||||
port=self.port,
|
||||
user=self.user,
|
||||
password=self.password,
|
||||
database=self.database
|
||||
)
|
||||
try:
|
||||
if self.db_schema:
|
||||
await conn.execute(f"SET search_path TO {self.db_schema}")
|
||||
yield conn
|
||||
finally:
|
||||
await conn.close()
|
||||
|
||||
@classmethod
|
||||
def from_env(cls):
|
||||
import os
|
||||
return cls(
|
||||
host=os.getenv("DB_HOST", "localhost"),
|
||||
port=int(os.getenv("DB_PORT", 5432)),
|
||||
user=os.getenv("DB_USER"),
|
||||
password=os.getenv("DB_PASSWORD"),
|
||||
database=os.getenv("DB_NAME"),
|
||||
db_schema=os.getenv("DB_SCHEMA")
|
||||
)
|
||||
|
||||
def to_dict(self):
|
||||
return self.dict(exclude_none=True)
|
||||
|
||||
class IMAPConfig(BaseModel):
|
||||
username: str
|
||||
|
|
|
|||
Loading…
Reference in a new issue