A metric space in which every point is contained in a ball whose closure is compact.

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Suppose $X$ is a metric space such that for each $x\in X$, $\exists \epsilon_x>0$ such that $\overline{B(x,\epsilon_x)}$ is compact.Then show that this metric space is complete.

This is a problem from Elements of Metric Spaces by M.N. Mukherjee.But I think this problem is wrong.The statement is not true.Suppose $X=(0,1)$ with $(x,y)\mapsto |x-y|$ as metric.Then every $X$ satisfies the given property but is not a complete metric space.But,can this problem be modified to get some interesting results.

I am looking for some interesting properties of the metric spaces $X$ which satisfy the property, for each $x\in X$, $\exists \epsilon_x>0$ such that $\overline{B(x,\epsilon_x)}$ is compact. Can someone give me some lead on this?

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Your counterexample is just fine.

The spaces for which that property holds are locally compact. Therefore, by the Baire category theorem, it is a Baire space, that is, a space such that the intersection of countably many dense open sets is still dense.