Execute an Arthas command and return the result. For sync commands (dashboard, thread, jvm, sc, sm, jad, ognl, etc.) returns result directly. For streaming commands (watch, trace, stack, monitor) runs in background and returns a job ID + log file path.

Get a comprehensive dashboard showing thread stats, memory usage, GC info, and runtime data.

Get thread information. Shows thread stack traces, CPU usage, and thread states.

Get JVM information including memory usage, GC stats, runtime info.

Get detailed memory information.

Search for loaded classes.

Search for methods in loaded classes.

Decompile a loaded class.

Watch method execution. Runs in background; waits up to awaitMs for completion and returns results inline if done, otherwise returns a job ID. Use arthas_read_log to check output later, arthas_stop_job to stop.

Trace method execution path and timing. Runs in background; waits up to awaitMs for completion and returns results inline if done, otherwise returns a job ID.

Get the call stack of a method. Runs in background; waits up to awaitMs for completion and returns results inline if done, otherwise returns a job ID.

Monitor method invocation statistics. Runs in background; waits up to awaitMs for completion and returns results inline if done, otherwise returns a job ID.

Execute OGNL expressions.

Show classloader hierarchy and info.

Get static field values.

Create a heap dump file.

Start/stop async profiler for CPU or memory profiling.

Time Tunnel: Record method invocations for replay. Record mode (record=true) is ASYNC.

Get Arthas version information.

Get help for Arthas commands.

Get a proven step-by-step Arthas command recipe for a common production symptom (high CPU, memory leak, slow requests, worker pool exhaustion, deadlocks, connection pool, Spring inspection, ...). START HERE when diagnosing a symptom instead of composing commands from scratch. Call without arguments to list topics.

List all async background jobs (watch/trace/stack/monitor). Shows job ID, command, status, log file path, and elapsed time.

Read the output log of an async job. Use this to check results from watch/trace/stack/monitor commands. Returns the tail by default to keep responses small.

Stop a running async job (watch/trace/stack/monitor).

Update Arthas connection configuration.