What version of Solr? CDCR has changed quite a bit in the 7x  code
line so it's important to know the version.

On Tue, Nov 6, 2018 at 10:32 AM Webster Homer
<webster.ho...@milliporesigma.com> wrote:
>
> Several times I have noticed that the CDCR action=QUEUES will return a 
> negative queueSize. When this happens we seem to be missing data in the 
> target collection. How can this happen? What does a negative Queue size mean? 
> The timestamp is an empty string.
>
> We have two targets for a source. One looks like this, with a negative queue 
> size
> queues": 
> ["uc1f-ecom-mzk01.sial.com:2181,uc1f-ecom-mzk02.sial.com:2181,uc1f-ecom-mzk03.sial.com:2181/solr",["ucb-catalog-material-180317",["queueSize",-1,"lastTimestamp",""]],
>
> The other is healthy
> "ae1b-ecom-mzk01.sial.com:2181,ae1b-ecom-mzk02.sial.com:2181,ae1b-ecom-mzk03.sial.com:2181/solr",["ucb-catalog-material-180317",["queueSize",246980,"lastTimestamp","2018-11-06T16:21:53.265Z"]]
>
> We are not seeing CDCR errors.
>
> What could cause this behavior?

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