dgraph-io / ristretto / 6046105025

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github

stop cleanupTicker while closing cache (#343)

## Problem
`cleanupTicker `that is created in `NewCache` is never stopped, which is
why the code below causes a memory leak

```go
for {
	c, _ := NewCache(...)
	c.Close()
}
```

## Solution
Stop `cleanupTicker` in `Close` method

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