# Missing data when busy, then data reappears when not busy

**URL:** https://forum.datomic.com/t/missing-data-when-busy-then-data-reappears-when-not-busy/967
**Category:** Datomic Cloud
**Created:** [May 5, 2019, 3:51am UTC](https://forum.datomic.com/t/missing-data-when-busy-then-data-reappears-when-not-busy/967 "2019-05-05T03:51:01Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![marco](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@marco](https://forum.datomic.com/u/marco)
#### Post date: [May 5, 2019, 3:51am UTC](https://forum.datomic.com/t/missing-data-when-busy-then-data-reappears-when-not-busy/967/1 "2019-05-05T03:51:02Z")

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I am getting strange behavior when retrieving data, sometimes data is present and other times it is not.

This seems to occur during times when the nodes are busy, meaning I’m getting a busy anomaly, and the version of the database (datomic/db) when doing a query on it returns no data, but then getting a new version of the database (datomic/db) once it is no longer busy and redoing the same query with the same keys returns data. And this data/no data alternates using the exact same query with the same keys.

Not sure how to debug this.

Thanks!

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### Author: ![marco](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@marco](https://forum.datomic.com/u/marco)
#### Post date: [May 6, 2019, 5:26pm UTC](https://forum.datomic.com/t/missing-data-when-busy-then-data-reappears-when-not-busy/967/2 "2019-05-06T17:26:44Z")

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As per your support, I restarted the instances and it resolved the issue of the busy anomalies.

Also according to support: the symptoms are matching a couple of issues that have recently been identified. One of which, we are still working on a fix for that will be included in the next release of cloud and another which we’ve already released a fix for around Valcache Cleanup/ Node.js end of life. As such, I would recommend that you upgrade to our latest [release 470-8654.1.](https://docs.datomic.com/cloud/releases.html#notes) This release includes the fix for Valcache cleanup which has similar symptoms as you’ve described and is a critical notice upgrade with a recommendation to upgrade as soon as possible due to the AWS End of Life of the node.js runtime is used to create support functions for cloud.

Thank you support! 🙂

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### Author: ![marshall](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/marshall/32/48_2.png) [@marshall](https://forum.datomic.com/u/marshall)
#### Post date: [May 28, 2019, 3:29pm UTC](https://forum.datomic.com/t/missing-data-when-busy-then-data-reappears-when-not-busy/967/3 "2019-05-28T15:29:46Z")

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The latest release of Datomic Cloud includes fixes for the identified issues we discussed in your support ticket:  
[https://docs.datomic.com/cloud/releases.html#477-8741](https://docs.datomic.com/cloud/releases.html#477-8741)

-Marshall
