RpcRateLimitException.java

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package org.apache.doris.cloud.rpc;

import org.apache.doris.rpc.RpcException;

/**
 * Exception thrown when RPC rate limit is exceeded.
 * This exception is used to indicate that the rate limit for meta-service RPC calls
 * has been exceeded and the request cannot be processed.
 *
 * There are multiple scenarios for this exception:
 * 1. Too many waiting requests - when the waiting queue is full, requests are rejected immediately
 * 2. Wait timeout - when a request waits too long to acquire a rate limit permit
 * 3. Cost limit exceeded - when the cost limit is exceeded
 */
public class RpcRateLimitException extends RpcException {

    public RpcRateLimitException(String message) {
        this(message, null);
    }

    public RpcRateLimitException(String message, Exception cause) {
        super("", message, cause);
    }
}