tree b275fd55e72d734d10745d509f42b0f3c2b86c4a
parent 217568b78b544d81d789b0ae9b7e7848d6ac5db0
author Keegan Carruthers-Smith <keegan.csmith@gmail.com> 1614075183 +0200
committer Keegan Carruthers-Smith <keegan.csmith@gmail.com> 1614078723 +0200

shards: wait for watcher to stop when closing

Previously we never shutdown the shardWatcher. This meant that when
closing shardedSearcher, the shardWatcher would still interact with it
if it noticed shards changing. This can happen in practice but is
rare. It can more easily be triggered by running e2e tests which cleanup
the index files.

Change-Id: I372e9f1723485ae092d82f0502deb64b4b3c976f