[Backport 8.12] Fix hang in bulk helper semaphore when server responses are slower than flushInterval #2129
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…an flushInterval (#2027) * Set version to 8.10.1 * Add tests for bulk helper with various flush and server timeouts * Copy and empty bulkBody when flushBytes is reached Before it was waiting until after semaphore resolved, then sending with a reference to bulkBody. If flushInterval is reached after `await semaphore()` but before `send(bulkBody)`, onFlushTimeout is "stealing" bulkBody so that there is nothing left in bulkBody for the flushBytes block to send, causing an indefinite hang for a promise that does not resolve. * comment typo fixes --------- Co-authored-by: Quentin Pradet <quentin.pradet@elastic.co> (cherry picked from commit 1607a0d)
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buildkite test this please |
pquentin
approved these changes
Feb 6, 2024
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Backport 1607a0d from #2027.