Fully implement Elasticsearch indexing

db.py

@@ -1,20 +1,17 @@
-import random
 from os import getenv
 
 import aioredis
 import orjson
 import redis
 
-# Kafka
-from aiokafka import AIOKafkaProducer
+# Elasticsearch
+from elasticsearch import AsyncElasticsearch
 
 import util
 
 trues = ("true", "1", "t", True)
 
-MONOLITH_KAFKA_ENABLED = getenv("MONOLITH_KAFKA_ENABLED", "false").lower() in trues
-
-# KAFKA_TOPIC = "msg"
+# INDEX = "msg"
 
 log = util.get_logger("db")
 
@@ -47,15 +44,54 @@ TYPES_META = ["who"]
 TYPES_INT = ["conn", "highlight", "znc", "query", "self"]
 KEYNAME = "queue"
 
+ELASTICSEARCH_USERNAME = getenv("ELASTICSEARCH_USERNAME", "elastic")
+ELASTICSEARCH_PASSWORD = getenv("ELASTICSEARCH_PASSWORD", "changeme")
+ELASTICSEARCH_HOST = getenv("ELASTICSEARCH_HOST", "localhost")
+ELASTICSEARCH_PORT = int(getenv("ELASTICSEARCH_PORT", "9200"))
+ELASTICSEARCH_TLS = getenv("ELASTICSEARCH_TLS", "false") in trues
 
-async def store_kafka_batch(data):
-    if not MONOLITH_KAFKA_ENABLED:
-        log.info(f"Not storing Kafka batch of length {len(data)}, Kafka is disabled.")
-        return
-    # log.debug(f"Storing Kafka batch of {len(data)} messages")
-    producer = AIOKafkaProducer(bootstrap_servers="kafka:9092")
-    await producer.start()
-    topicmap = {}
+client = None
+
+# These are sometimes numeric, sometimes strings.
+# If they are seen to be numeric first, ES will erroneously
+# index them as "long" and then subsequently fail to index messages
+# with strings in the field.
+keyword_fields = ["nick_id", "user_id", "net_id"]
+
+mapping = {
+    "mappings": {
+        "properties": {
+            "ts": {"type": "date", "format": "epoch_second"},
+            "file_tim": {"type": "date", "format": "epoch_millis"},
+        }
+    }
+}
+for field in keyword_fields:
+    mapping["mappings"]["properties"][field] = {"type": "text"}
+
+
+async def initialise_elasticsearch():
+    """
+    Initialise the Elasticsearch client.
+    """
+    auth = (ELASTICSEARCH_USERNAME, ELASTICSEARCH_PASSWORD)
+    client = AsyncElasticsearch(ELASTICSEARCH_HOST, http_auth=auth, verify_certs=False)
+    for index in ("main", "restricted"):
+        if await client.indices.exists(index=index):
+            # update index with mapping
+            await client.indices.put_mapping(
+                index=index, properties=mapping["mappings"]["properties"]
+            )
+        else:
+            await client.indices.create(index=index, mappings=mapping["mappings"])
+    return client
+
+
+async def store_batch(data):
+    global client
+    if not client:
+        client = await initialise_elasticsearch()
+    indexmap = {}
     for msg in data:
         if msg["type"] in TYPES_MAIN:
             # index = "main"
@@ -68,7 +104,7 @@ async def store_kafka_batch(data):
             index = "internal"
             # schema = mc_s.schema_int
 
-        KAFKA_TOPIC = index
+        INDEX = index
 
         # if key in schema:
         #     if isinstance(value, int):
@@ -76,45 +112,20 @@ async def store_kafka_batch(data):
         #             "text"
         #         ):
         #             msg[key] = str(value)
-        body = orjson.dumps(msg)
+        # body = orjson.dumps(msg)
         if "ts" not in msg:
             raise Exception("No TS in msg")
-        if KAFKA_TOPIC not in topicmap:
-            topicmap[KAFKA_TOPIC] = [body]
+        if INDEX not in indexmap:
+            indexmap[INDEX] = [msg]
         else:
-            topicmap[KAFKA_TOPIC].append(body)
+            indexmap[INDEX].append(msg)
 
-    for topic, messages in topicmap.items():
-        batch = producer.create_batch()
-        for body in messages:
-            metadata = batch.append(key=None, value=body, timestamp=msg["ts"])
-            if metadata is None:
-                partitions = await producer.partitions_for(topic)
-                partition = random.choice(tuple(partitions))
-                await producer.send_batch(batch, topic, partition=partition)
-                # log.debug(
-                #     (
-                #         f"{batch.record_count()} messages sent to topic "
-                #         f"{topic} partition {partition}"
-                #     )
-                # )
-                batch = producer.create_batch()
-                continue
-
-        partitions = await producer.partitions_for(topic)
-        partition = random.choice(tuple(partitions))
-        await producer.send_batch(batch, topic, partition=partition)
-        # log.debug(
-        #     (
-        #         f"{batch.record_count()} messages sent to topic "
-        #         f"{topic} partition {partition}"
-        #     )
-        # )
-    log.debug(
-        "Kafka batches sent: "
-        + ", ".join([tpc + ": " + str(len(topicmap[tpc])) for tpc in topicmap])
-    )
-    await producer.stop()
+    for index, index_messages in indexmap.items():
+        for message in index_messages:
+            result = await client.index(index=index, body=message)
+            if not result["result"] == "created":
+                log.error(f"Indexing failed: {result}")
+    log.debug(f"Indexed {len(data)} messages in ES")
 
 
 async def queue_message(msg):

docker/docker-compose.prod.yml

@@ -9,6 +9,10 @@ services:
       - ${PORTAINER_GIT_DIR}:/code
     env_file:
       - ../stack.env
+    networks:
+      - default
+      - pathogen
+      - elastic
 
   threshold:
     image: pathogen/threshold:latest
@@ -30,6 +34,8 @@ services:
     # for development
     extra_hosts:
       - "host.docker.internal:host-gateway"
+    networks:
+      - default
 
   ssdb:
     image: tsl0922/ssdb
@@ -38,6 +44,8 @@ services:
       - "1289:1289"
     environment:
       - SSDB_PORT=1289
+    networks:
+      - default
 
   tmp:
     image: busybox
@@ -68,8 +76,11 @@ services:
 
 networks:
   default:
-      external:
-         name: pathogen
+    driver: bridge
+  pathogen:
+    external: true
+  elastic:
+    external: true
 
 volumes:
   redis_data:

processing/process.py

@@ -135,7 +135,7 @@ async def spawn_processing_threads(chunk, length):
             f"{cores} threads: {len(flat_list)}"
         )
     )
-    await db.store_kafka_batch(flat_list)
+    await db.store_batch(flat_list)
 
     # log.debug(f"Finished processing {len_data} messages")
 

requirements.txt

@@ -8,7 +8,7 @@ python-dotenv
 #manticoresearch
 numpy
 aioredis[hiredis]
-aiokafka
+#aiokafka
 vaderSentiment
 polyglot
 pyicu
@@ -22,3 +22,4 @@ python-Levenshtein
 orjson
 uvloop
 numba
+elasticsearch[async]