def initialize(cls):
"""Perform startup database checks.
1) Load schema if needed
2) Run migrations if needed
3) Check if initial sync has completed
"""
log.info("[INIT] Welcome to hive!")
# create db schema if needed
if not cls._is_schema_loaded():
log.info("[INIT] Create db schema...")
setup(cls.db())
cls._before_initial_sync()
# perform db migrations
cls._check_migrations()
# check if initial sync complete
cls._is_initial_sync = cls._is_feed_cache_empty()
if cls._is_initial_sync:
log.info("[INIT] Continue with initial sync...")
else:
log.info("[INIT] Hive initialized.")
def run():
# if tables not created, do so now
if not query_row('SHOW TABLES'):
print("[INIT] No tables found. Initializing db...")
setup()
#TODO: if initial sync is interrupted, cache never rebuilt
#TODO: do not build partial feed_cache during init_sync
# if this is the initial sync, batch updates until very end
is_initial_sync = not query_one("SELECT 1 FROM hive_posts_cache LIMIT 1")
if is_initial_sync:
print("[INIT] *** Initial sync ***")
else:
# perform cleanup in case process did not exit cleanly
cache_missing_posts()
# fast block sync strategies
sync_from_checkpoints(is_initial_sync)
sync_from_steemd(is_initial_sync)
if is_initial_sync:
print("[INIT] *** Initial sync complete. Rebuilding cache. ***")
cache_missing_posts()
rebuild_feed_cache()
# initialization complete. follow head blocks
listen_steemd()
def run():
if db_needs_setup():
print("[INIT] Initializing db...")
setup()
#TODO: if initial sync is interrupted, cache never rebuilt
#TODO: do not build partial feed_cache during init_sync
# if this is the initial sync, batch updates until very end
is_initial_sync = not query_one("SELECT 1 FROM hive_posts_cache LIMIT 1")
if is_initial_sync:
print("[INIT] *** Initial sync. db_last_block: %d ***" %
db_last_block())
else:
# perform cleanup in case process did not exit cleanly
cache_missing_posts()
# prefetch id->name memory map
Accounts.load_ids()
# fast block sync strategies
sync_from_checkpoints(is_initial_sync)
sync_from_steemd(is_initial_sync)
Accounts.cache_old()
Accounts.update_ranks()
if is_initial_sync:
print("[INIT] *** Initial sync complete. Rebuilding cache. ***")
cache_missing_posts()
rebuild_feed_cache()
# initialization complete. follow head blocks
listen_steemd()
def initialize(cls):
# create db schema if needed
if not cls._is_schema_loaded():
print("[INIT] Initializing db...")
setup()
# perform db migrations
cls._check_migrations()
# check if initial sync complete
cls._is_initial_sync = cls._is_feed_cache_empty()
if cls._is_initial_sync:
print("[INIT] Continue with initial sync...")
def initialize(cls):
"""Perform startup database checks.
1) Load schema if needed
2) Run migrations if needed
3) Check if initial sync has completed
"""
log.info("[INIT] Welcome to hive!")
# create db schema if needed
if not cls._is_schema_loaded():
log.info("[INIT] Create db schema...")
setup(cls.db())
# check if initial sync complete
cls._is_initial_sync = True
log.info("[INIT] Continue with initial sync...")
def ensure_schema(database_url):
"""re-create db schema (WARN: will wipe data)"""
teardown(database_url)
setup(database_url)