"cannot open Berkeley DB file 'Default.db' in environment '/dev/shm/cache/bdb': Lock table is out of available locker entries at '/home/user/perl5/lib/perl5/CHI/Driver/BerkeleyDB.pm line 49."

##</code><code>##

our $chi = CHI->new(
    driver   => 'BerkeleyDB',
    root_dir => '/dev/shm/cache/bdb',
    serializer => 'Storable',
    l1_cache => {
        driver => 'RawMemory',
        global => 1,
        max_size => 2 ** 15,
    }
);

##</code><code>##

sub _build_chi {
    my $root_dir = '/dev/shm/cache/bdb';
    CHI->new(
        driver   => 'BerkeleyDB',
        root_dir => $root_dir,
        serializer => 'Storable',
        env =>  BerkeleyDB::Env->new(
            '-Home'       => $root_dir,
            '-Config'     => {},
            '-Flags'      => DB_CREATE | DB_INIT_CDB | DB_INIT_MPOOL
            '-LockDetect' => DB_LOCK_OLDEST,
        )
    );
}