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Auto-update: Mon Aug 12 17:30:08 PDT 2024

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sanj 2024-08-12 17:30:08 -07:00
parent 42863bd22d
commit e4db7a0f88
1 changed files with 40 additions and 27 deletions
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67
sijapi/database.py
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@ -135,33 +135,27 @@ class Database:
async with self.sessions[self.local_ts_id]() as session:
try:
# Serialize the kwargs
# a. Execute the write query locally
serialized_kwargs = {key: serialize(value) for key, value in kwargs.items()}
# Execute the write query
result = await session.execute(text(query), serialized_kwargs)
# Log the query
# b. Log the query in query_tracking table
new_query = QueryTracking(
ts_id=self.local_ts_id,
query=query,
args=json_dumps(kwargs) # Use json_dumps for logging
args=json_dumps(kwargs),
completed_by={self.local_ts_id: True}
)
session.add(new_query)
await session.flush()
query_id = new_query.id
await session.commit()
l.info(f"Successfully executed write query: {query[:50]}...")
checksum = await self._local_compute_checksum(query, serialized_kwargs)
# Update query_tracking with checksum
await self.update_query_checksum(query_id, checksum)
# Perform sync operations asynchronously
asyncio.create_task(self._async_sync_operations(query_id, query, serialized_kwargs, checksum))
# Initiate async operations
asyncio.create_task(self._async_sync_operations(query_id, query, serialized_kwargs))
# c. Return the result
return result
except Exception as e:
@ -172,25 +166,44 @@ class Database:
l.error(f"Traceback: {traceback.format_exc()}")
return None
async def _async_sync_operations(self, query_id: int, query: str, params: dict, checksum: str):
async def _async_sync_operations(self, query_id: int, query: str, params: dict):
try:
await self.sync_query_tracking()
except Exception as e:
l.error(f"Failed to sync query_tracking: {str(e)}")
# a. Calculate and add checksum
checksum = await self._local_compute_checksum(query, params)
await self.update_query_checksum(query_id, checksum)
try:
# b. Synchronize query_tracking table
await self.sync_query_tracking()
# c. Call /db/sync on all servers
await self.call_db_sync_on_servers()
except Exception as e:
l.error(f"Failed to call db_sync on other servers: {str(e)}")
l.error(f"Error in async sync operations: {str(e)}")
l.error(f"Traceback: {traceback.format_exc()}")
# Replicate write to other servers
async def call_db_sync_on_servers(self):
"""Call /db/sync on all online servers."""
online_servers = await self.get_online_servers()
for ts_id in online_servers:
if ts_id != self.local_ts_id:
try:
await self._replicate_write(ts_id, query_id, query, params, checksum)
except Exception as e:
l.error(f"Failed to replicate write to {ts_id}: {str(e)}")
for server in self.config['POOL']:
if server['ts_id'] in online_servers and server['ts_id'] != self.local_ts_id:
asyncio.create_task(self.call_db_sync(server))
async def call_db_sync(self, server):
url = f"http://{server['ts_ip']}:{server['app_port']}/db/sync"
headers = {
"Authorization": f"Bearer {server['api_key']}"
}
async with aiohttp.ClientSession() as session:
try:
async with session.post(url, headers=headers, timeout=30) as response:
if response.status == 200:
l.info(f"Successfully called /db/sync on {url}")
else:
l.warning(f"Failed to call /db/sync on {url}. Status: {response.status}")
except asyncio.TimeoutError:
l.debug(f"Timeout while calling /db/sync on {url}")
except Exception as e:
l.error(f"Error calling /db/sync on {url}: {str(e)}")
async def get_primary_server(self) -> str: