Description

serge-fabiano

opened on May 3, 2023

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I would like to use the TTL at NodeCache's instance level and not per record.

Then I'll be notified only once when the instance data is expired and I will reload ALL the cache at once.

When instance is created, the TTL provided is applied to the instance

    const nodeCache = new NodeCache( {
      instanceTTL: 600,   // Instance TTL
      checkperiod: 100,
    });

This notification should be called only once after instance expiration and I will put the code here to reload the whole cache:

    nodeCache.on( "instance_expired", (instance: NodeCache) => {
        // Reload the whole cache here from the DB
    });

Is it possible?

Activity

1. deepam-kapur commented on May 5, 2023

   

   deepam-kapur

   on May 5, 2023

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   Can I work on this?
2. AggelosAst commented on Aug 28, 2023

   

   AggelosAst

   on Aug 28, 2023

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   From what i understood, this is what youre asking for:

   const nodeCache1 = new NodeCache( {
        stdTTL: 600,   // TTL for nodeCache1 
        checkperiod: 100,
   });
   
   const nodeCache2 = new NodeCache( {
        stdTTL: 400,   // TTL for nodeCache2
        checkperiod: 100,
   });
   
   // . . .
   
   nodeCache2.on( "key_expired", (key, value) => {
          //  . . .
   });
   
   nodeCache1.on( "key_expired", (key, value) => {
          //  . . .
   });

   And, yes thats possible

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