docker version: 1.13.1
clickhouse version: 20.3.11.97
system: centos7

The **/docker-entrypoint-initdb.d/** path contains the sql file, and the sql contains the **odbc  Dictionary ENGINE**; when the **_entrypoint.sh_** script is executed, there is a certain probability that the dictionary table creation fails: `Code: 410. DB::Exception: Received from 127.0.0.1:9000. DB::Exception: ODBCBridgeHelper: clickhouse-odbc-bridge is not responding.`

Only after the clickhouse-odbc-bridge process is completely started, the creation of the obdc table will be added manually again.

the [ODBC](https://clickhouse.tech/docs/en/engines/table-engines/integrations/odbc/)  `ClickHouse automatically starts clickhouse-odbc-bridge when it is required`, But what is this trigger mechanism? Can the above problems be solved in entrypoint.sh?

**entrypoint.sh  log:**
```
Recreating clickhouse ... done
Attaching to clickhouse
clickhouse           | Processing configuration file '/etc/clickhouse-server/config.xml'.
clickhouse           | Merging configuration file '/etc/clickhouse-server/config.d/config.xml'.
clickhouse           | Include not found: macros
clickhouse           | Include not found: clickhouse_compression
clickhouse           | Logging error to /var/log/clickhouse-server/clickhouse-server.log
clickhouse           | Logging errors to /var/log/clickhouse-server/clickhouse-server.err.log
clickhouse           | 
clickhouse           | /entrypoint.sh: running /docker-entrypoint-initdb.d/schema.dnsmon.sql
clickhouse           | Received exception from server (version 20.3.12):
clickhouse           | Code: 410. DB::Exception: Received from localhost:9000. DB::Exception: ODBCBridgeHelper: clickhouse-odbc-bridge is not responding. 
clickhouse           | 
clickhouse           | 
clickhouse           | Processing configuration file '/etc/clickhouse-server/config.xml'.
clickhouse           | Merging configuration file '/etc/clickhouse-server/config.d/config.xml'.
clickhouse           | Include not found: macros
clickhouse           | Include not found: clickhouse_compression
clickhouse           | Logging error to /var/log/clickhouse-server/clickhouse-server.log
clickhouse           | Logging errors to /var/log/clickhouse-server/clickhouse-server.err.log
```

**clickhouse-odbc-bridge.log:**
```
2020.09.04 17:40:30.025145 [ 121 ] {} <Trace> Pipe: Pipe capacity is 1.00 MiB
2020.09.04 17:40:30.037783 [ 121 ] {} <Debug> ApplicationStartup: Initializing subsystem: Logging Subsystem
2020.09.04 17:40:30.037858 [ 121 ] {} <Information> ApplicationStartup: Starting up
2020.09.04 17:40:30.039492 [ 121 ] {} <Information> ApplicationStartup: Listening http://[::1]:9018
2020.09.04 17:40:31.234435 [ 122 ] {} <Information> Application: Received termination signal (Terminated)
2020.09.04 17:40:31.234514 [ 121 ] {} <Debug> ApplicationStartup: Received termination signal.
2020.09.04 17:40:31.234534 [ 121 ] {} <Debug> ApplicationStartup: Waiting for current connections to close.
2020.09.04 17:40:31.292217 [ 121 ] {} <Debug> Application: Uninitializing subsystem: Logging Subsystem
2020.09.04 17:40:31.292406 [ 122 ] {} <Information> BaseDaemon: Stop SignalListener thread
```




{
    using Parent = detail::ReadWriteBufferFromHTTPBase<std::shared_ptr<UpdatableSession>>;
public:
    explicit ReadWriteBufferFromHTTP(
        Poco::URI uri_,
        const std::string & method_,
        OutStreamCallback out_stream_callback_,
        const ConnectionTimeouts & timeouts,
        const UInt64 max_redirects = 0,
        const Poco::Net::HTTPBasicCredentials & credentials_ = {},
        size_t buffer_size_ = DBMS_DEFAULT_BUFFER_SIZE,
        const HTTPHeaderEntries & http_header_entries_ = {},
        const RemoteHostFilter & remote_host_filter_ = {})
        : Parent(std::make_shared<UpdatableSession>(uri_, timeouts, max_redirects),
            uri_, method_, out_stream_callback_, credentials_, buffer_size_, http_header_entries_, remote_host_filter_)
    {
    }
};
class UpdatablePooledSession : public UpdatableSessionBase<PooledHTTPSessionPtr>