def run_server():
"""Configure and launch the API server."""
log_level = Conf.log_level()
config.debug = (log_level == logging.DEBUG)
logging.basicConfig(level=log_level)
logger = logging.getLogger(__name__)
logging.getLogger('jsonrpcserver.dispatcher.response').setLevel(log_level)
methods = build_methods()
app = web.Application()
app['config'] = dict()
app['config']['args'] = Conf.args()
app['config']['hive.MAX_DB_ROW_RESULTS'] = 100000
app['config'][
'hive.DB_QUERY_LIMIT'] = app['config']['hive.MAX_DB_ROW_RESULTS'] + 1
app['config']['hive.logger'] = logger
#async def init_db(app):
# args = app['config']['args']
# db = make_url(args.database_url)
# engine = await create_engine(user=db.username,
# database=db.database,
# password=db.password,
# host=db.host,
# port=db.port,
# **db.query)
# app['db'] = engine
#
#async def close_db(app):
# app['db'].close()
# await app['db'].wait_closed()
#
#app.on_startup.append(init_db)
#app.on_cleanup.append(close_db)
async def head_age(request):
"""Get hive head block age in seconds. 500 if greater than 15s."""
#pylint: disable=unused-argument
healthy_age = 15 # hive is synced if head block within 15s
curr_age = (await hive_api.db_head_state())['db_head_age']
status = 500 if curr_age > healthy_age else 200
return web.Response(status=status, text=str(curr_age))
async def health(request):
"""Get hive health data. 500 if behind by more than a few secs."""
#pylint: disable=unused-argument
is_syncer = Conf.get('sync_to_s3')
max_head_age = (Conf.get('trail_blocks') + 1) * 3
try:
state = await hive_api.db_head_state()
except OperationalError as e:
if 'could not connect to server: Connection refused' in str(e):
logging.error("hive /health could not connect to db")
state = None
else:
raise e
if not state:
status = 500
result = 'db not available'
elif not is_syncer and state['db_head_age'] > max_head_age:
status = 500
result = 'head block age (%s) > max (%s); head block num: %s' % (
state['db_head_age'], max_head_age, state['db_head_block'])
else:
status = 200
result = 'head block age is %d, head block num is %d' % (
state['db_head_age'], state['db_head_block'])
return web.json_response(
status=status,
data=dict(state=state,
result=result,
status='OK' if status == 200 else 'WARN',
sync_service=is_syncer,
source_commit=os.environ.get('SOURCE_COMMIT'),
schema_hash=os.environ.get('SCHEMA_HASH'),
docker_tag=os.environ.get('DOCKER_TAG'),
timestamp=datetime.utcnow().isoformat()))
async def jsonrpc_handler(request):
"""Handles all hive jsonrpc API requests."""
request = await request.text()
response = await methods.dispatch(request)
return web.json_response(response,
status=200,
headers={'Access-Control-Allow-Origin': '*'})
app.router.add_get('/.well-known/healthcheck.json', health)
app.router.add_get('/head_age', head_age)
app.router.add_get('/health', health)
app.router.add_post('/', jsonrpc_handler)
web.run_app(app, port=app['config']['args'].http_server_port)
def run_server():
log_level = Conf.log_level()
config.debug = (log_level == logging.DEBUG)
logging.basicConfig(level=log_level)
logger = logging.getLogger(__name__)
logging.getLogger('jsonrpcserver.dispatcher.response').setLevel(log_level)
methods = build_methods()
app = web.Application()
app['config'] = dict()
app['config']['args'] = Conf.args()
app['config']['hive.MAX_DB_ROW_RESULTS'] = 100000
app['config'][
'hive.DB_QUERY_LIMIT'] = app['config']['hive.MAX_DB_ROW_RESULTS'] + 1
app['config']['hive.logger'] = logger
async def init_db(app):
args = app['config']['args']
db = make_url(args.database_url)
engine = await create_engine(user=db.username,
database=db.database,
password=db.password,
host=db.host,
port=db.port,
**db.query)
app['db'] = engine
async def close_db(app):
app['db'].close()
await app['db'].wait_closed()
app.on_startup.append(init_db)
app.on_cleanup.append(close_db)
async def health(request):
#pylint: disable=unused-argument
state = await hive_api.db_head_state()
max_head_age = (Conf.get('trail_blocks') + 1) * 3
if state['db_head_age'] > max_head_age:
status = 500
result = 'head block age (%s) > max (%s); head block num: %s' % (
state['db_head_age'], max_head_age, state['db_head_block'])
else:
status = 200
result = 'head block age is %d, head block num is %d' % (
state['db_head_age'], state['db_head_block'])
return web.json_response(
status=status,
data=dict(state=state,
result=result,
status='OK' if status == 200 else 'WARN',
source_commit=os.environ.get('SOURCE_COMMIT'),
schema_hash=os.environ.get('SCHEMA_HASH'),
docker_tag=os.environ.get('DOCKER_TAG'),
timestamp=datetime.utcnow().isoformat()))
async def jsonrpc_handler(request):
request = await request.text()
response = await methods.dispatch(request)
return web.json_response(response,
status=200,
headers={'Access-Control-Allow-Origin': '*'})
app.router.add_get('/health', health)
app.router.add_post('/', jsonrpc_handler)
web.run_app(app, port=app['config']['args'].http_server_port)