- Create a Tempting Hook
- Don’t Make These Rookie Deer Hunting Mistakes
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This document actually matters. Serious investors will recognize a poorly-constructed business plan when they see one. Your restaurant business plan is the key to opening your doors. If you know you want to run a restaurant, prove it. Do the work. Find your information. Research your competition. Crunch your numbers and put together a realistic sales forecast for your restaurant.
Do everything it takes to flesh out a fully-detailed business plan.
Show your effort and it will pay off. Breeze through it and your restaurant may never have its opening day. If you hand in another dry business plan, potential investors will do everything they can to finish reading it before their next meeting or lunch break.
Create a Tempting Hook
What makes your restaurant special in the company of one million other restaurant locations nationwide? More importantly, what makes you stand out from the other restaurants in your state, town, or street? Answer: your competitive advantage. This analysis should include how you plan to differentiate yourself from other restaurants, whether it be through menu items, concept, price, location, atmosphere, or management tactics.
Whatever your competitive advantage may be, make sure it is justified, fleshed out, and very difficult to argue against. This will take some time to get right, but your competitive advantage is what will sustain your restaurant longer than others. Your executive summary acts as the foundation for your entire business plan, and your business plan is the foundation of your restaurant. So, why would you not take the time to craft an amazing executive summary?
Use this opportunity to reel your readers in, show them you are passionate and knowledgeable about the industry, and that you mean business.
Your executive summary should contain your mission , the key facts of your business, your competitive advantage, and the main takeaways readers can expect to see fleshed out when they read your entire business plan. Well said. Marketing is how you make your competitive advantage clear to potential and existing customers. Have a plan to leverage your competitive advantage with your target market with modern, creative marketing tools and strategies, and investors will be impressed.
Investors will want to know your financial forecast , your profit margins , your labor expenses, your fixed and variable costs, and so on. Take as much time as needed to project your sales and expenses as accurately as you can. These numbers can be based on industry standards, historical documents, or numbers from another restaurant you operate. In our experience, lazy queues create a more stable cluster with better predictive performance. Messages will not get flushed to disk without a warning. You will not suddenly experience a hit to queue performance.
Don’t Make These Rookie Deer Hunting Mistakes
If you are sending a lot of messages at once e. Please note that you should disable lazy queues if you require really high performance, if the queues are always short, or if you have set a max-length policy. Another recommendation for applications that often get hit by spikes of messages, and where throughput is more important than anything else, is to set a max-length on the queue.
This keeps the queue short by discarding messages from the head of the queue so that it never gets larger than the max-length setting. Queues are single-threaded in RabbitMQ, and one queue can handle up to about 50 thousand messages. You will achieve better throughput on a multi-core system if you have multiple queues and consumers and if you have as many queues as cores on the underlying node s.
The RabbitMQ management interface collects and calculates metrics for every queue in the cluster. This might slow down the server if you have thousands upon thousands of active queues and consumers. Queue performance is limited to one CPU core. You will, therefore, get better performance if you split your queues into different cores, and into different nodes, if you have a RabbitMQ cluster. RabbitMQ queues are bound to the node where they were first declared.
Even if you create a cluster of RabbitMQ brokers, all messages routed to a specific queue will go to the node where that queue lives. You can manually split your queues evenly between nodes, but; the downside is remembering where your queue is located. We recommend two plugins that will help you if you have multiple nodes or a single node cluster with multiple cores:. The consistent hash exchange plugin allows you to use an exchange to load-balance messages between queues. Messages sent to the exchange are consistently and equally distributed across many queues, based on the routing key of the message.
The plugin creates a hash of the routing key and spreads the messages out between queues that have a binding to that exchange. It could quickly become problematically to do this manually, without adding too much information about numbers of queues and their bindings into the publisher. The consistent hash exchange plugin can be used if you need to get the maximum use of many cores in your cluster.
Read more about the consistent hash exchange plugin here. The RabbitMQ sharding plugin does the partitioning of queues automatically; i. RabbitMQ sharding shows one queue to the consumer, but in reality, it consists of many queues running in the background.
The RabbitMQ sharding plugin gives you a centralized place where you can send your messages, plus load balancing across many nodes, by adding queues to the other nodes in the cluster. Read more about RabbitMQ sharding here. Giving a queue a name is important when you want to share the queue between producers and consumers, but it's not important if you are using temporary queues.
Instead, you should let the server choose a random queue name instead of making up your own names, or modify the RabbitMQ policies. Client connections can fail and potentially leave unused resources queues behind, which could affect performance. There are three ways to delete a queue automatically. Set a TTL policy in the queue; e. An exclusive queue can only be used consumed from, purged, deleted, etc. Exclusive queues are deleted when their declaring connection is closed or gone e.
Each priority level uses an internal queue on the Erlang VM, which takes up some resources. In most use cases it is sufficient to have no more than 5 priority levels.
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How to handle the payload message size of messages sent to RabbitMQ is a common question among users. Keep in mind that the amount of messages per second is a way larger bottleneck than the message size itself. While sending large messages is not a good practice, sending multiple small messages might be a bad alternative. A better idea is to bundle them into one larger message and let the consumer split it up. However, if you bundle multiple messages you need to keep in mind that this might affect the processing time. If one of the bundled messages fails, will all messages need to be re-processed?
When setting up bundled messages, consider your bandwidth and architecture. Thousands of connections can be a heavy burden on a RabbitMQ server. In the worst case, the server can crash because it is out of memory.
Do You Make These 7 Mistakes When You Write? - Copyblogger
It is recommended that each process only creates one TCP connection, using multiple channels in that connection for different threads. Connections should be long-lived. Alternatively, channels can be opened and closed more frequently, if required, and channels should be long-lived if possible, e. The best practice is to reuse connections and multiplex a connection between threads with channels. You should ideally only have one connection per process, and then use a channel per thread in your application.
Separate the connections for publishers and consumers to achieve high throughput. RabbitMQ can apply back pressure on the TCP connection when the publisher is sending too many messages for the server to handle. If you consume on the same TCP connection, the server might not receive the message acknowledgments from the client, thus effecting the consume performance. With a lower consume speed, the server will be overwhelmed.
Another effect of having a large number of connections and channels is the performance of the RabbitMQ management interface. For each connection and channel performance, metrics have to be collected, analyzed and displayed. Messages in transit might get lost in an event of a connection failure and need to be retransmitted. Acknowledgments let the server and clients know when to retransmit messages. The client can either ack the message when it receives it, or when the client has completely processed the message.
Acknowledgment has a performance impact, so for the fastest possible throughput, manual acks should be disabled. A consuming application that receives important messages should not acknowledge messages until it has finished with them so that unprocessed messages worker crashes, exceptions, etc. Publish confirm is the same concept for publishing.
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The server acks when it has received a message from a publisher. All unacknowledged messages must reside in RAM on the servers. If you have too many unacknowledged messages, you will run out of memory. An efficient way to limit unacknowledged messages is to limit how many messages your clients prefetch.
Read more about prefetch in the prefetch section. In order to avoid losing messages in the broker, you need to be prepared for broker restarts, broker hardware failure, or broker crashes. To ensure that messages and broker definitions survive restarts, ensure that they are on the disk.