Tim Vernum 9035e61825
Detect when security index is closed (#42740)
If the security index is closed, it should be treated as unavailable
for security purposes.

Prior to 8.0 (or in a mixed cluster) a closed security index has
no routing data, which would cause a NPE in the cluster change
handler, and the index state would not be updated correctly.
This commit fixes that problem

Backport of: #42191
2019-06-04 14:25:20 +10:00
..
2019-05-22 14:44:08 +03:00
2019-05-31 08:03:10 -06:00

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