set_gc_stats · Cloudera Data Visualization MCP Server MCP

WHAT IT DOES

What set_gc_stats does on Cloudera Data Visualization MCP Server

AI agents invoke set_gc_stats to trigger actions in Cloudera Data Visualization MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why set_gc_stats needs a policy

Setting GC (garbage collection) debug flags on a live server is an administrative action that alters the server's runtime behavior. It is not a simple data read or write, but rather triggers a server-side operational change. It doesn't delete data or move money, but it can affect server performance and stability, making Execute the most appropriate category.

From the tool's definition 'Set GC debug flags on the CDV server' — modifies server-side runtime configuration/debug state

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_gc_stats Rate-limited

set_gc_stats stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_gc_stats": {
      "limits": [
        {
          "counter": "set_gc_stats_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Cloudera Data Visualization MCP Server, so you can run agents against it safely.

FAQ

Questions about set_gc_stats

What does the set_gc_stats tool do? +

Set GC debug flags on the CDV server. Requires sys_viewlogs permission. It is categorised as a Execute tool in the Cloudera Data Visualization MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on set_gc_stats? +

Register the Cloudera Data Visualization MCP Server MCP server in PolicyLayer and add a rule for set_gc_stats: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Cloudera Data Visualization MCP Server. Nothing to install.

What risk level is set_gc_stats? +

set_gc_stats is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit set_gc_stats? +

Yes. Add a rate_limit block to the set_gc_stats rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block set_gc_stats completely? +

Set action: deny in the PolicyLayer policy for set_gc_stats. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides set_gc_stats? +

set_gc_stats is provided by the Cloudera Data Visualization MCP Server MCP server (kevintalbert/cdv-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.