Elasticsearch · supported engine

Search clusters, inspectable.

Connect by seed hosts or Cloud ID with basic, API-key, or mTLS authentication; run JSON DSL, ES|QL on Elasticsearch, or PPL on OpenSearch, inspect every stage of a profile per shard, and manage snapshots and archive backup/restore from one workbench.

Elasticsearch (ES|QL) · OpenSearch (PPL) · API keys · mTLS

Live · click to inspect

The profile Mongrel builds for your query.

Click any stage below to see per-shard timing and what Mongrel would suggest. Same profile view you get inside the workbench.

// Term lookup · tokens: auth, failed, err, 1042

Standard analyzer split 'ERR-1042' into 'err' + '1042'. Postings for '1042' alone match 38,900 docs — the hot term wrecking precision.

// logs-* · prod-search-01
GET /logs-*/_search
{
  "profile": true,
  "query": {
    "match": { "message": "auth failed ERR-1042" }
  },
  "aggs": {
    "errors_over_time": {
      "date_histogram": { "field": "@timestamp", "calendar_interval": "1h" }
    }
  },
  "size": 20
}

// 186ms · 12 shards · hot term "1042" → 38,900 docs
// ✓ Proposal: keep error codes intact with a custom analyzer

PUT /logs-*/_mapping
{
  "properties": {
    "message": {
      "type": "text",
      "analyzer": "error_code_analyzer"
    }
  }
}
Elasticsearch surface

What Mongrel ships for Elasticsearch.

JSON DSL workbench

Write and run Query DSL with completion and inline validation. Toggle profile:true and keep query, response, and profile side by side.

Profile & shard inspector

Per-stage breakdown from rewrite to fetch, with per-shard timing. Spot hot shards and hot terms before they page you.

ES|QL and PPL consoles

Run ES|QL on Elasticsearch or PPL on OpenSearch from one console. Piped queries, tabular results, and export to CSV or JSON.

Index & mapping designer

Edit mappings, analyzers, and settings visually. Manage index templates and aliases, with diffs before anything is applied.

Snapshots & archives

Register repositories, take and restore snapshots, and run Mongrel archive backup/restore for encrypted off-cluster copies.

Cluster & shard overview

Node, shard, and allocation views with cluster health at a glance. Drill from an unassigned shard to the node holding it.

API keys & mTLS

Connect with basic auth, API keys, or mutual TLS — by seed hosts or Elastic Cloud ID. Credentials stay in the OS keychain.

AI explain & rewrite

Paste a query and its profile. The assistant rewrites the DSL, proposes mapping or analyzer fixes, and shows the predicted profile.

Import, export, copy

Bulk NDJSON in and out, CSV-to-bulk imports, and schema-aware copy of indices and documents between clusters and other engines.

Connect Elasticsearch in 30 seconds.

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