Merge branch 'main' into chore/Upgrade-LC-version

# Conflicts:
#	packages/components/nodes/cache/RedisCache/RedisCache.ts
#	packages/components/nodes/cache/RedisCache/RedisEmbeddingsCache.ts
#	packages/components/nodes/chains/ConversationChain/ConversationChain.ts
#	packages/components/nodes/tools/RetrieverTool/RetrieverTool.ts
#	packages/components/nodes/vectorstores/Qdrant/Qdrant.ts
#	packages/components/nodes/vectorstores/Redis/Redis.ts
#	packages/components/nodes/vectorstores/Redis/RedisSearchBase.ts
#	packages/components/nodes/vectorstores/Redis/Redis_Existing.ts
#	packages/components/nodes/vectorstores/Redis/Redis_Upsert.ts
#	packages/components/src/agents.ts

packages/components/nodes/cache/RedisCache/RedisCache.ts

@@ -1,10 +1,47 @@
-import { Redis } from 'ioredis'
+import { Redis, RedisOptions } from 'ioredis'
+import { isEqual } from 'lodash'
 import hash from 'object-hash'
 import { RedisCache as LangchainRedisCache } from '@langchain/community/caches/ioredis'
 import { StoredGeneration, mapStoredMessageToChatMessage } from '@langchain/core/messages'
 import { Generation, ChatGeneration } from '@langchain/core/outputs'
 import { getBaseClasses, getCredentialData, getCredentialParam, ICommonObject, INode, INodeData, INodeParams } from '../../../src'
 
+let redisClientSingleton: Redis
+let redisClientOption: RedisOptions
+let redisClientUrl: string
+
+const getRedisClientbyOption = (option: RedisOptions) => {
+    if (!redisClientSingleton) {
+        // if client doesn't exists
+        redisClientSingleton = new Redis(option)
+        redisClientOption = option
+        return redisClientSingleton
+    } else if (redisClientSingleton && !isEqual(option, redisClientOption)) {
+        // if client exists but option changed
+        redisClientSingleton.quit()
+        redisClientSingleton = new Redis(option)
+        redisClientOption = option
+        return redisClientSingleton
+    }
+    return redisClientSingleton
+}
+
+const getRedisClientbyUrl = (url: string) => {
+    if (!redisClientSingleton) {
+        // if client doesn't exists
+        redisClientSingleton = new Redis(url)
+        redisClientUrl = url
+        return redisClientSingleton
+    } else if (redisClientSingleton && url !== redisClientUrl) {
+        // if client exists but option changed
+        redisClientSingleton.quit()
+        redisClientSingleton = new Redis(url)
+        redisClientUrl = url
+        return redisClientSingleton
+    }
+    return redisClientSingleton
+}
+
 class RedisCache implements INode {
     label: string
     name: string
@@ -61,7 +98,7 @@ class RedisCache implements INode {
 
             const tlsOptions = sslEnabled === true ? { tls: { rejectUnauthorized: false } } : {}
 
-            client = new Redis({
+            client = getRedisClientbyOption({
                 port: portStr ? parseInt(portStr) : 6379,
                 host,
                 username,
@@ -69,7 +106,7 @@ class RedisCache implements INode {
                 ...tlsOptions
             })
         } else {
-            client = new Redis(redisUrl)
+            client = getRedisClientbyUrl(redisUrl)
         }
 
         const redisClient = new LangchainRedisCache(client)
@@ -95,7 +132,7 @@ class RedisCache implements INode {
             for (let i = 0; i < value.length; i += 1) {
                 const key = getCacheKey(prompt, llmKey, String(i))
                 if (ttl) {
-                    await client.set(key, JSON.stringify(serializeGeneration(value[i])), 'EX', parseInt(ttl, 10))
+                    await client.set(key, JSON.stringify(serializeGeneration(value[i])), 'PX', parseInt(ttl, 10))
                 } else {
                     await client.set(key, JSON.stringify(serializeGeneration(value[i])))
                 }