# Could not retrieve data randomly **URL:** \ **Category:** Elasticsearch\ **Created:** [October 9, 2014, 2:53am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152 "2014-10-09T02:53:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![xzer\_LR](https://avatars.discourse-cdn.com/v4/letter/x/2acd7d/32.png) [@xzer\_LR](https://discuss.elastic.co/u/xzer_LR)\ **Post date:** [October 9, 2014, 2:53am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/1 "2014-10-09T02:53:42Z")
I have a cluster with 3 physical servers and elasticsearch 1.2.3 installed. I updated some data at yestoday and then today I got a strange issue: I query data as following: { "query": { "bool": { "must": [ { "term": { "applicationDateRouting.patentDocumentId": "11387107" } } ], "must\_not": [], "should": [] } }, "from": 0, "size": 10, "sort": [], "facets": {} } then I could get the expected one row data at the first time, then I query again, I will get nothing as following response: { - took: 40 - timed\_out: false - \_shards: { - total: 10 - successful: 10 - failed: 0 } - hits: { - total: 0 - max\_score: null - hits: [] } } then, I query again, I get one row, again, nothing, again, one row, again, nothing.... In my application, we are using filter instead of query and we got the same issue as above. It seems a bug of elasticsearch, is there any idea about how to analyze this issue? -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/b0b75829-e054-445b-a118-874f23ea30cd%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/b0b75829-e054-445b-a118-874f23ea30cd%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![xzer\_LR](https://avatars.discourse-cdn.com/v4/letter/x/2acd7d/32.png) [@xzer\_LR](https://discuss.elastic.co/u/xzer_LR)\ **Post date:** [October 10, 2014, 2:11am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/2 "2014-10-10T02:11:09Z")
Is there anybody can help me with this issue? -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/afb83b2f-5735-44cb-89d3-90efc974b256%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/afb83b2f-5735-44cb-89d3-90efc974b256%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![xzer\_LR](https://avatars.discourse-cdn.com/v4/letter/x/2acd7d/32.png) [@xzer\_LR](https://discuss.elastic.co/u/xzer_LR)\ **Post date:** [October 14, 2014, 3:34am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/3 "2014-10-14T03:34:53Z")
I need help about this, help!!! -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/823060d2-d4a4-4ffb-965c-26c69b953bb1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/823060d2-d4a4-4ffb-965c-26c69b953bb1%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![xzer\_LR](https://avatars.discourse-cdn.com/v4/letter/x/2acd7d/32.png) [@xzer\_LR](https://discuss.elastic.co/u/xzer_LR)\ **Post date:** [October 14, 2014, 3:43am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/4 "2014-10-14T03:43:16Z")
additional information: The replica factor of my index is 1, which means there are only 2 copies in the cluster. Since I can get the data every 2 times, I guess that there is one missing copy, but how can I confirm it? The cluster health api resports green. -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/6f5a1bb1-ec40-4c4f-8943-8172de46ac62%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/6f5a1bb1-ec40-4c4f-8943-8172de46ac62%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![xzer\_LR](https://avatars.discourse-cdn.com/v4/letter/x/2acd7d/32.png) [@xzer\_LR](https://discuss.elastic.co/u/xzer_LR)\ **Post date:** [October 16, 2014, 2:31am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/5 "2014-10-16T02:31:16Z")
Now I finally confirmed that it is a flappy item issue which had been mentioned before: [Redirecting to Google Groups](https://groups.google.com/forum/#!topic/elasticsearch/a-LELkkLRoE) but it apears in version 1.2.3 Is there any advise about this issue? I am also interest in that whether there is an internal mechanism in elasticsearch to avoid this situation? I AM ALSO FRUSTRATED BY NO ANSWER HERE. 在 2014年10月14日星期二UTC+9下午12时43分17秒，xzer LR写道： > additional information: > > The replica factor of my index is 1, which means there are only 2 copies > in the cluster. > > Since I can get the data every 2 times, I guess that there is one missing > copy, but how can I confirm it? > > The cluster health api resports green. -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/dbe9c2f0-7571-437d-ad6c-4dff06ea3114%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/dbe9c2f0-7571-437d-ad6c-4dff06ea3114%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 12:55am UTC](https://discuss.elastic.co/t/could-not-retrieve-data-randomly/20152/6 "2017-07-06T00:55:54Z")