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add sqlalchemy client pool configuration options via env vars #5751

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Merged
adhami3310 merged 1 commit into from
Sep 5, 2025
Merged

add sqlalchemy client pool configuration options via env vars #5751

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12 changes: 12 additions & 0 deletions reflex/environment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -556,6 +556,18 @@ class EnvironmentVariables:
# Whether to check db connections before using them.
SQLALCHEMY_POOL_PRE_PING: EnvVar[bool] = env_var(True)

# The size of the database connection pool.
SQLALCHEMY_POOL_SIZE: EnvVar[int] = env_var(5)

# The maximum overflow size of the database connection pool.
SQLALCHEMY_MAX_OVERFLOW: EnvVar[int] = env_var(10)

# Recycle connections after this many seconds.
SQLALCHEMY_POOL_RECYCLE: EnvVar[int] = env_var(-1)

# The timeout for acquiring a connection from the pool.
SQLALCHEMY_POOL_TIMEOUT: EnvVar[int] = env_var(30)

# Whether to ignore the redis config error. Some redis servers only allow out-of-band configuration.
REFLEX_IGNORE_REDIS_CONFIG_ERROR: EnvVar[bool] = env_var(False)

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4 changes: 4 additions & 0 deletions reflex/model.py
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Expand Up @@ -96,6 +96,10 @@ def get_engine_args(url: str | None = None) -> dict[str, Any]:
"echo": environment.SQLALCHEMY_ECHO.get(),
# Check connections before returning them.
"pool_pre_ping": environment.SQLALCHEMY_POOL_PRE_PING.get(),
"pool_size": environment.SQLALCHEMY_POOL_SIZE.get(),
"max_overflow": environment.SQLALCHEMY_MAX_OVERFLOW.get(),
"pool_recycle": environment.SQLALCHEMY_POOL_RECYCLE.get(),
"pool_timeout": environment.SQLALCHEMY_POOL_TIMEOUT.get(),
}
conf = get_config()
url = url or conf.db_url
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