```
$ ls -lR

.:
total 1645932
-rwxrwxr-x 1 milovidov milovidov 1685419984 июл  4 00:33 clickhouse
drwxrwxr-x 2 milovidov milovidov       4096 июл  4 00:36 lib
drwxrwxr-x 2 milovidov milovidov       4096 июл  4 00:36 lib64

./lib:
total 3536
-rwxr-xr-x 1 milovidov milovidov 2025032 июл  4 00:36 libc.so.6
-rw-r--r-- 1 milovidov milovidov   18816 июл  4 00:36 libdl.so.2
-rw-r--r-- 1 milovidov milovidov 1369352 июл  4 00:36 libm.so.6
-rwxr-xr-x 1 milovidov milovidov  158288 июл  4 00:36 libpthread.so.0
-rw-r--r-- 1 milovidov milovidov   40040 июл  4 00:36 librt.so.1

./lib64:
total 184
-rwxr-xr-x 1 milovidov milovidov 187376 июл  4 00:36 ld-linux-x86-64.so.2


$ sudo chroot . /clickhouse local --query "SELECT 1"
filesystem error: in temp_directory_path: path "/tmp" is not a directory: Not a directory
```
{
    parent.releaseSession(*this);
}
/** Set of known objects (environment), that could be used in query.
  * Shared (global) part. Order of members (especially, order of destruction) is very important.
  */
struct ContextShared
{
    Poco::Logger * log = &Poco::Logger::get("Context");
    
    mutable std::recursive_mutex mutex;
    
    mutable std::mutex embedded_dictionaries_mutex;
    mutable std::mutex external_dictionaries_mutex;
    mutable std::mutex external_models_mutex;
    
    
    
    mutable std::mutex storage_policies_mutex;
    
    mutable std::mutex zookeeper_mutex;
    mutable zkutil::ZooKeeperPtr zookeeper;                 
    mutable std::mutex auxiliary_zookeepers_mutex;
    mutable std::map<String, zkutil::ZooKeeperPtr> auxiliary_zookeepers;    
    String interserver_io_host;                             
    UInt16 interserver_io_port = 0;                         
    String interserver_io_user;