Why Move from MongoDB to Elasticsearch?

• Advanced Full-Text Search: Elasticsearch offers powerful, scalable search features.

• Real-Time Analytics: Run complex queries and aggregations efficiently.

• Low Latency: Optimized for sub-second search responses.

Monstache: Real-Time Sync Between MongoDB and Elasticsearch

Monstache is a Go-based daemon that streams changes from MongoDB to Elasticsearch, ensuring your search index is always up to date.

Key Features:

• Real-time sync via MongoDB’s oplog.

• Bulk initial sync and live updates.

• Flexible filtering and document transformation.

• Resilient, with resume-on-failure and high-availability support.

Step-by-Step Migration & Sync

1. Prepare MongoDB

• Enable Replica Set:

  mongod --replSet myReplSet

  
  

• Initialize:

  rs.initiate()

2. Set Up Elasticsearch

• Install and configure Elasticsearch for your environment.

• Running Elasticsearch in a docker container

  docker run -d --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:8.10.2

  
  

• Optionally, define index mappings for your data.

3. Install Monstache

• Download the latest binary from the official releases. Click here

• Verify installation:

  monstache -v

4. Configure Monstache

Create a config.toml file:

mongo-url = "mongodb://127.0.0.1:27017/?replicaSet=myReplSet"
elasticsearch-urls = ["http://localhost:9200"]

direct-read-namespaces = ["mydb.mycollection"]
gzip = true
resume = true
index-as-update = true
stats = true

5. Start Sync

monstache -f config.toml

Monstache will bulk sync existing documents, then mirror new inserts, updates, and deletes in real time.

Achieving Low-Latency Search

• Optimize Index Mappings: Use correct data types and analyzers.

• Tune Elasticsearch: Adjust heap size, thread pools, and caching.

• Monitor Performance: Use Elasticsearch and Monstache’s monitoring endpoints.

Supercharge Search & Analytics with SyneHQ

SyneHQ empowers teams to get more from their Elasticsearch data without writing code or complex queries.

What SyneHQ Offers Developers

• Connect to Your Hosted Elasticsearch: Securely link your Elasticsearch instance, whether self-hosted or cloud-based.

• Chat with Your Data: Use natural language to ask questions and get instant answers from your Elasticsearch indices.

• Generate Charts Instantly: Create visualizations from your data with just a prompt—no manual chart-building required.

• Create Custom Dashboards: Build and share dashboards to monitor KPIs, trends, and business metrics.

• Support for EQL & REST Queries: Run advanced Event Query Language (EQL) and REST API queries directly, giving you full flexibility and power over your data exploration.

• Enterprise-Grade Security: Your data never leaves your server, with options for self-hosting and robust access controls.