[iris] LogPusher: background drain thread, self-heal via resolver, never drop on send failures#4866

Merged

rjpower merged 11 commits intomainfrom

iris-logpusher-resolver

Apr 17, 2026

Commits on Apr 17, 2026

[iris] LogPusher: self-heal on log-server failover via resolver callback
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Cleanup: construct LogPusher in start(); _attach_log_handler is just attach/rename
rjpower
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LogPusher: background drain thread, never drops on send failures
rjpower
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LogPusher: exponential backoff on persistent send failures
rjpower
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LogPusher: single (key, entry) deque; drain thread groups by key
rjpower
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LogPusher: default resolver to identity; uniform get_client/invalidate
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worker: replace assert with ConnectionError in log resolver
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LogPusher: detach module logger from root; drop redundant close check
rjpower
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LogPusher: tighten docstring; collapse four failure-path tests into one
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LogPusher: drop redundant close check; outer loop handles it
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LogPusher: flush() blocks until every prior entry is processed

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