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1045abe71f
Today we expire the client stats for HTTP channels 5 minutes after they close. It's possible to open a very large number of HTTP channels in 5 minutes, possibly inadvertently, and the stats for those channels can be overwhelming. This commit introduces a limit on the number of channels tracked by each node which applies in addition to the age limit, and makes these limits configurable via static settings. It drops the pruning of old stats when starting to track a new channel and instead uses a queue to expire the oldest stats when each channel closes if necessary to respect the count limit; it only performs age-based expiry when retrieving the stats, since the count limit now bounds the memory needed. Finally, it tightents up some missing synchronization and makes sure that we expose only immutable objects to the stats subsystem. |
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| .. | ||
| cluster | ||
| discovery | ||
| indices | ||
| network | ||
| cluster.asciidoc | ||
| discovery.asciidoc | ||
| gateway.asciidoc | ||
| http.asciidoc | ||
| network.asciidoc | ||
| node.asciidoc | ||
| plugins.asciidoc | ||
| remote-clusters.asciidoc | ||
| threadpool.asciidoc | ||
| transport.asciidoc | ||