HIVE-29636: Add SSL keystore auto-reloading for HiveServer2 WebUI#6514
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magnuma3 wants to merge 2 commits into
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HIVE-29636: Add SSL keystore auto-reloading for HiveServer2 WebUI#6514magnuma3 wants to merge 2 commits into
magnuma3 wants to merge 2 commits into
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deniskuzZ
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May 29, 2026
| private Server webServer; | ||
| private QueuedThreadPool threadPool; | ||
| private PortHandlerWrapper portHandlerWrapper; | ||
| private Optional<Timer> configurationChangeMonitor = Optional.empty(); |
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test failure is not related to this patch. |
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HIVE-29636
What changes were proposed in this pull request?
HiveServer2 WebUI's SslContextFactory is built once at startup, so renewing the SSL keystore requires restarting HS2
Watch the keystore file with Hadoop's FileMonitoringTimerTask and call SslContextFactory#reload(...) on mtime change. The daemon Timer is installed when SSL is on and is cancelled in HttpServer#stop(). Reload failures are logged and swallowed
Same pattern as HADOOP-16524, reusing its FileMonitoringTimerTask
Why are the changes needed?
Rotating WebUI SSL certificates currently requires an HS2 restart, which is increasingly painful as certificate lifetimes shorten. Hadoop's HttpServer2 already solved this via HADOOP-16524.
Does this PR introduce any user-facing change?
Yes — new opt-in ConfVar hive.server2.webui.keystore.reload.interval (default 60s, 0 disables). When the keystore file changes, the running HS2 picks up the new certificate within the interval; no restart needed. No API or schema changes.
How was this patch tested?
Added TestHttpServer