Expose missing configurations for grpc_config and pool_threads (#296)

## Problem

This PR addresses a few configuration-related issues:
- We moved `pool_threads` configuration up to the `Pinecone` client
instance, but for backwards compatibility it would be nice to also allow
it to be passed in the call to `pc.Index(host='your-host',
pool_threads=5)`
- We need to expose `grpc_config` as a keyword param when targeting
indexes via the grpc-flavored client.

## Solution

- Pass through kwargs from `.Index()` to underlying Index class
implementation
- Add unit tests making sure `pool_threads` and `grpc_config` handled
correctly.

### Before (pool_threads)

```python
from pinecone import Pinecone

pc = Pinecone(api_key='key', pool_threads=5)
pc.Index(host='host')
pc.upsert(...)
```

### After (pool_threads, add backwards compatibility with old way)

You can use syntax as before, or alternatively can do this:

```python
from pinecone import Pinecone

pc = Pinecone(api_key='key')
index = pc.Index(host='host', pool_threads=5)
index.upsert(...)
```

### After (grpc, allow grpc_config to be passed)

```python
from pinecone.grpc import PineconeGRPC, GRPCClientConfig

pc = PineconeGRPC(api_key='YOUR_API_KEY')
grpc_config = GRPCClientConfig(
    timeout=10, 
    secure=True,
    reuse_channel=True
)
index = pc.Index(name='my-index', host='host', grpc_config=grpc_config)
```

## Type of Change

- [x] New feature (non-breaking change which adds functionality)
- [x] None of the above: Add backwards compatibility on pool_threads
config

## Test Plan

New tests should be green in CI.

Author: jhamon

pinecone/control/pinecone.py

@@ -94,10 +94,10 @@ def __init__(
         else:
             self.config = PineconeConfig.build(api_key=api_key, host=host, additional_headers=additional_headers, **kwargs)
 
+        self.pool_threads = pool_threads
         if index_api:
             self.index_api = index_api
         else:
-            self.pool_threads = pool_threads
             api_client = ApiClient(configuration=self.config.openapi_config, pool_threads=self.pool_threads)
             api_client.user_agent = get_user_agent()
             extra_headers = self.config.additional_headers or {}
@@ -446,7 +446,7 @@ def _get_status(self, name: str):
         response = api_instance.describe_index(name)
         return response["status"]
 
-    def Index(self, name: str = '', host: str = ''):
+    def Index(self, name: str = '', host: str = '', **kwargs):
         """
         Target an index for data operations.
 
@@ -518,12 +518,14 @@ def Index(self, name: str = '', host: str = ''):
         """
         if name == '' and host == '':
             raise ValueError("Either name or host must be specified")
+        
+        pt = kwargs.pop('pool_threads', None) or self.pool_threads
 
         if host != '':
             # Use host url if it is provided
-            return Index(api_key=self.config.api_key, host=normalize_host(host), pool_threads=self.pool_threads)
+            return Index(api_key=self.config.api_key, host=normalize_host(host), pool_threads=pt, **kwargs)
 
         if name != '':
             # Otherwise, get host url from describe_index using the index name
             index_host = self.index_host_store.get_host(self.index_api, self.config, name)
-            return Index(api_key=self.config.api_key, host=index_host, pool_threads=self.pool_threads)
+            return Index(api_key=self.config.api_key, host=index_host, pool_threads=pt, **kwargs)

pinecone/grpc/__init__.py

@@ -46,6 +46,7 @@
 
 from .index_grpc import GRPCIndex
 from .pinecone import PineconeGRPC
+from .config import GRPCClientConfig
 
 from pinecone.core.grpc.protos.vector_service_pb2 import (
     Vector as GRPCVector,

pinecone/grpc/config.py

@@ -7,7 +7,7 @@ class GRPCClientConfig(NamedTuple):
     GRPC client configuration options.
 
     :param secure: Whether to use encrypted protocol (SSL). defaults to True.
-    :type traceroute: bool, optional
+    :type secure: bool, optional
     :param timeout: defaults to 2 seconds. Fail if gateway doesn't receive response within timeout.
     :type timeout: int, optional
     :param conn_timeout: defaults to 1. Timeout to retry connection if gRPC is unavailable. 0 is no retry.

pinecone/grpc/pinecone.py

@@ -46,7 +46,7 @@ class PineconeGRPC(Pinecone):
 
     """
 
-    def Index(self, name: str = '', host: str = ''):
+    def Index(self, name: str = '', host: str = '', **kwargs):
         """
         Target an index for data operations.
 
@@ -123,10 +123,10 @@ def Index(self, name: str = '', host: str = ''):
         if host != '':
             # Use host if it is provided
             config = ConfigBuilder.build(api_key=self.config.api_key, host=host)
-            return GRPCIndex(index_name=name, config=config)
+            return GRPCIndex(index_name=name, config=config, **kwargs)
 
         if name != '':
             # Otherwise, get host url from describe_index using the index name
             index_host = self.index_host_store.get_host(self.index_api, self.config, name)
             config = ConfigBuilder.build(api_key=self.config.api_key, host=index_host)
-            return GRPCIndex(index_name=name, config=config)
+            return GRPCIndex(index_name=name, config=config, **kwargs)

tests/unit/test_control.py

@@ -1,6 +1,7 @@
 import pytest
 from pinecone import Pinecone, PodSpec, ServerlessSpec
 from pinecone.core.client.models import IndexList, IndexModel
+from pinecone.core.client.api.manage_indexes_api import ManageIndexesApi
 import time
 
 @pytest.fixture
@@ -67,4 +68,27 @@ def test_list_indexes_returns_iterable(self, mocker, index_list_response):
         mocker.patch.object(p.index_api, 'list_indexes', side_effect=[index_list_response])
 
         response = p.list_indexes()
-        assert [i.name for i in response] == ["index1", "index2", "index3"]
+        assert [i.name for i in response] == ["index1", "index2", "index3"]
+
+
+class TestIndexConfig:
+    def test_default_pool_threads(self):
+        pc = Pinecone(api_key="123-456-789")
+        index = pc.Index(host='my-host.svg.pinecone.io')
+        assert index._api_client.pool_threads == 1
+
+    def test_pool_threads_when_indexapi_passed(self):
+        pc = Pinecone(api_key="123-456-789", pool_threads=2, index_api=ManageIndexesApi())
+        index = pc.Index(host='my-host.svg.pinecone.io')
+        assert index._api_client.pool_threads == 2
+
+    def test_target_index_with_pool_threads_inherited(self):
+        pc = Pinecone(api_key="123-456-789", pool_threads=10, foo='bar')
+        index = pc.Index(host='my-host.svg.pinecone.io')
+        assert index._api_client.pool_threads == 10
+
+    def test_target_index_with_pool_threads_kwarg(self):
+        pc = Pinecone(api_key="123-456-789", pool_threads=10)
+        index = pc.Index(host='my-host.svg.pinecone.io', pool_threads=5)
+        assert index._api_client.pool_threads == 5
+

tests/unit_grpc/test_grpc_index_initialization.py

@@ -0,0 +1,66 @@
+from pinecone.grpc import PineconeGRPC, GRPCClientConfig
+
+class TestGRPCIndexInitialization:
+    def test_init_with_default_config(self):
+        pc = PineconeGRPC(api_key='YOUR_API_KEY')
+        index = pc.Index(name='my-index', host='host')
+        
+        assert index.grpc_client_config.secure == True
+        assert index.grpc_client_config.timeout == 20
+        assert index.grpc_client_config.conn_timeout == 1
+        assert index.grpc_client_config.reuse_channel == True
+        assert index.grpc_client_config.retry_config == None
+        assert index.grpc_client_config.grpc_channel_options == None
+
+    def test_init_with_grpc_config_from_dict(self):
+        pc = PineconeGRPC(api_key='YOUR_API_KEY')
+        config = GRPCClientConfig._from_dict({'timeout': 10})
+        index = pc.Index(name='my-index', host='host', grpc_config=config)
+        
+        assert index.grpc_client_config.timeout == 10
+
+        # Unset fields still get default values
+        assert index.grpc_client_config.reuse_channel == True
+        assert index.grpc_client_config.secure == True
+
+
+    def test_init_with_grpc_config_non_dict(self):
+        pc = PineconeGRPC(api_key='YOUR_API_KEY')
+        config = GRPCClientConfig(timeout=10, secure=False)
+        index = pc.Index(name='my-index', host='host', grpc_config=config)
+        
+        assert index.grpc_client_config.timeout == 10
+        assert index.grpc_client_config.secure == False
+
+        # Unset fields still get default values
+        assert index.grpc_client_config.reuse_channel == True
+        assert index.grpc_client_config.conn_timeout == 1
+
+    def test_config_passed_when_target_by_name(self):
+        pc = PineconeGRPC(api_key='YOUR_API_KEY')
+
+        # Set this state in the host store to skip network call
+        # to find host for name
+        pc.index_host_store.set_host(pc.config, 'my-index', 'myhost')
+
+        config = GRPCClientConfig(timeout=10, secure=False)
+        index = pc.Index(name='my-index', grpc_config=config)
+        
+        assert index.grpc_client_config.timeout == 10
+        assert index.grpc_client_config.secure == False
+
+        # Unset fields still get default values
+        assert index.grpc_client_config.reuse_channel == True
+        assert index.grpc_client_config.conn_timeout == 1
+
+    def test_config_passed_when_target_by_host(self):
+        pc = PineconeGRPC(api_key='YOUR_API_KEY')
+        config = GRPCClientConfig(timeout=5, secure=True)
+        index = pc.Index(host='myhost', grpc_config=config)
+        
+        assert index.grpc_client_config.timeout == 5
+        assert index.grpc_client_config.secure == True
+
+        # Unset fields still get default values
+        assert index.grpc_client_config.reuse_channel == True
+        assert index.grpc_client_config.conn_timeout == 1