diff --git a/server/bll/event/event_bll.py b/server/bll/event/event_bll.py
index c83cc94..53cd170 100644
--- a/server/bll/event/event_bll.py
+++ b/server/bll/event/event_bll.py
@@ -178,7 +178,7 @@ class EventBLL(object):
                     company_id=company_id,
                     task_id=task_id,
                     now=now,
-                    iter=task_iteration.get(task_id),
+                    iter_max=task_iteration.get(task_id),
                     last_events=task_last_events.get(task_id),
                 )
 
@@ -216,7 +216,7 @@ class EventBLL(object):
         if timestamp is None or timestamp < event["timestamp"]:
             last_events[metric_hash][variant_hash] = event
 
-    def _update_task(self, company_id, task_id, now, iter=None, last_events=None):
+    def _update_task(self, company_id, task_id, now, iter_max=None, last_events=None):
         """
         Update task information in DB with aggregated results after handling event(s) related to this task.
 
@@ -226,8 +226,8 @@ class EventBLL(object):
         """
         fields = {}
 
-        if iter is not None:
-            fields["last_iteration"] = iter
+        if iter_max is not None:
+            fields["last_iteration_max"] = iter_max
 
         if last_events:
             fields["last_values"] = list(
diff --git a/server/bll/workers/__init__.py b/server/bll/workers/__init__.py
index 334b76e..28c7fa5 100644
--- a/server/bll/workers/__init__.py
+++ b/server/bll/workers/__init__.py
@@ -4,7 +4,6 @@ from typing import Sequence, Set, Optional
 
 import attr
 import elasticsearch.helpers
-
 import es_factory
 from apierrors import APIError
 from apierrors.errors import bad_request, server_error
@@ -19,12 +18,14 @@ from apimodels.workers import (
 )
 from config import config
 from database.errors import translate_errors_context
-from database.model import Company, User
+from database.model.auth import User
+from database.model.company import Company
 from database.model.queue import Queue
 from database.model.task.task import Task
 from service_repo.redis_manager import redman
 from timing_context import TimingContext
 from tools import safe_get
+
 from .stats import WorkerStats
 
 log = config.logger(__file__)
diff --git a/server/service_repo/redis_manager.py b/server/service_repo/redis_manager.py
index b9692a8..bae8e42 100644
--- a/server/service_repo/redis_manager.py
+++ b/server/service_repo/redis_manager.py
@@ -1,14 +1,25 @@
 import threading
+from os import getenv
 from time import sleep
 
-from redis import StrictRedis
-from redis.sentinel import Sentinel, SentinelConnectionPool
-
 from apierrors.errors.server_error import ConfigError, GeneralError
 from config import config
+from redis import StrictRedis
+from redis.sentinel import Sentinel, SentinelConnectionPool
 
 log = config.logger(__file__)
 
+OVERRIDE_HOST_ENV_KEY = "REDIS_SERVICE_HOST"
+OVERRIDE_PORT_ENV_KEY = "REDIS_SERVICE_PORT"
+
+OVERRIDE_HOST = getenv(OVERRIDE_HOST_ENV_KEY)
+if OVERRIDE_HOST:
+    log.info(f"Using override redis host {OVERRIDE_HOST}")
+
+OVERRIDE_PORT = getenv(OVERRIDE_PORT_ENV_KEY)
+if OVERRIDE_PORT:
+    log.info(f"Using override redis port {OVERRIDE_PORT}")
+
 
 class MyPubSubWorkerThread(threading.Thread):
     def __init__(self, sentinel, on_new_master, msg_sleep_time, daemon=True):
@@ -108,10 +119,21 @@ class RedisManager(object):
     def __init__(self, redis_config_dict):
         self.aliases = {}
         for alias, alias_config in redis_config_dict.items():
+
+            alias_config = alias_config.as_plain_ordered_dict()
+
             is_cluster = alias_config.get("cluster", False)
-            host = alias_config.get("host", None)
-            port = alias_config.get("port", None)
+
+            host = OVERRIDE_HOST or alias_config.get("host", None)
+            if host:
+                alias_config["host"] = host
+
+            port = OVERRIDE_PORT or alias_config.get("port", None)
+            if port:
+                alias_config["port"] = port
+
             db = alias_config.get("db", 0)
+
             sentinels = alias_config.get("sentinels", None)
             service_name = alias_config.get("service_name", None)
 
@@ -132,12 +154,11 @@ class RedisManager(object):
 
             if is_cluster:
                 # todo support all redis connection args via sentinel's connection_kwargs
-                connection_kwargs = alias_config.as_plain_ordered_dict()
-                del connection_kwargs["sentinels"]
-                del connection_kwargs["cluster"]
-                del connection_kwargs["service_name"]
+                del alias_config["sentinels"]
+                del alias_config["cluster"]
+                del alias_config["service_name"]
                 self.aliases[alias] = RedisCluster(
-                    sentinels, service_name, **connection_kwargs
+                    sentinels, service_name, **alias_config
                 )
             else:
                 self.aliases[alias] = StrictRedis(**alias_config)