# Can a river get out of sync? **URL:** \ **Category:** Elasticsearch\ **Created:** [September 6, 2013, 9:13pm UTC](https://discuss.elastic.co/t/can-a-river-get-out-of-sync/13502 "2013-09-06T21:13:12Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Douglas\_Ferguson\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/douglas_ferguson_2/32/2121_2.png) [@Douglas\_Ferguson\_2](https://discuss.elastic.co/u/Douglas_Ferguson_2)\ **Post date:** [September 6, 2013, 9:13pm UTC](https://discuss.elastic.co/t/can-a-river-get-out-of-sync/13502/1 "2013-09-06T21:13:12Z")
Does a river periodically re-index documents if indexes get corrupt or is it possible for them to get out of sync? If they do get out of synch what is the recommended procedure for re-indexing? I'm considering using the mongoDB river. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [September 7, 2013, 12:18am UTC](https://discuss.elastic.co/t/can-a-river-get-out-of-sync/13502/2 "2013-09-07T00:18:44Z")
> Does a river periodically re-index documents if indexes get corrupt or is it possible for them to get out of sync? > No. A river (at least the ones I know) does not reindex all periodically. > If they do get out of synch what is the recommended procedure for re-indexing? > Delete the river. Create it again I guess. HTH -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:17am UTC](https://discuss.elastic.co/t/can-a-river-get-out-of-sync/13502/3 "2017-07-06T02:17:39Z")
Closed on July 6, 2017, 2:17am UTC