We have a small Elastic Search cluster consisting of 3 nodes.
Looking back at some historic data that we are holding it would appear that
some of our data is missing.
This histogram below shows 2 50 minute periods where the number of events
is noticeably lower.
This wasn't the case when I last looked at this data a couple of days ago.
https://lh5.googleusercontent.com/-zN6h62PQc6c/U_W2ZsbZU7I/AAAAAAAAAGw/GZedfHblhCk/s1600/elastic%2Bsearch.png
Our index has 5 primary shards, 10 active shards and 0 unassigned shards.
We have tried...
- Flushing the index
- Refreshing the index
- Clearing the cache
- Restarting the nodes
...but nothing has had an effect
Does anyone have any recommendations about what might have happened or how
we can go about debugging this?
Many thanks, Chris
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