fix: a rare race condition in the row merger #1939
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This would manifest as a hang when iterating over a ServerStream from ReadRows Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d
steveniemitz
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Sep 28, 2023
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🤖 I have created a release *beep* *boop* --- ## [2.27.3](https://togithub.com/googleapis/java-bigtable/compare/v2.27.2...v2.27.3) (2023-09-29) ### Bug Fixes * A rare race condition in the row merger ([#1939](https://togithub.com/googleapis/java-bigtable/issues/1939)) ([fccd710](https://togithub.com/googleapis/java-bigtable/commit/fccd7100578da3e2ee2a315c6e956c06dbf41668)) ### Dependencies * Update dependency org.graalvm.buildtools:junit-platform-native to v0.9.27 ([#1919](https://togithub.com/googleapis/java-bigtable/issues/1919)) ([56d6b40](https://togithub.com/googleapis/java-bigtable/commit/56d6b40b9f874ec4ad78618c1cf0d365ddc9276b)) * Update dependency org.graalvm.buildtools:native-maven-plugin to v0.9.27 ([#1920](https://togithub.com/googleapis/java-bigtable/issues/1920)) ([ca1dd5b](https://togithub.com/googleapis/java-bigtable/commit/ca1dd5b258c7fa5cfd90811dc8b9492c19d1f104)) * Update gapic-generator-java to 2.26.0 ([#1936](https://togithub.com/googleapis/java-bigtable/issues/1936)) ([15cd486](https://togithub.com/googleapis/java-bigtable/commit/15cd4868ff807513914095a3758134eaa14f0ea3)) --- This PR was generated with [Release Please](https://togithub.com/googleapis/release-please). See [documentation](https://togithub.com/googleapis/release-please#release-please).
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* fix: a rare race condition in the row merger This would manifest as a hang when iterating over a ServerStream from ReadRows Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
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* fix: a rare race condition in the row merger (#1939) * fix: a rare race condition in the row merger This would manifest as a hang when iterating over a ServerStream from ReadRows Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Igor Bernstein <[email protected]> Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
mutianf
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* fix: a rare race condition in the row merger This would manifest as a hang when iterating over a ServerStream from ReadRows Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
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* fix: a rare race condition in the row merger (#1939) * fix: a rare race condition in the row merger This would manifest as a hang when iterating over a ServerStream from ReadRows Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * chore: Fix flaky metrics tests (#1865) This fixes a few flaky unit tests that relied on `Thread.sleep` to ensure that all metrics processing was done. Rather than using `Thread.sleep`, we can instead use an inline event queue in the OpenCensus stats component to execute all work inline, removing the need to wait for anything to finish. --------- Co-authored-by: Igor Bernstein <[email protected]> Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> Co-authored-by: Steven Niemitz <[email protected]>
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Sometimes an operation can get stuck indefinitely. The underlying reasons can vary significantly: - the underlying attempt rpc can get stuck due to a bug in grpc (ie grpc/grpc-java#11026) - the operation can get stuck in layers above gax: googleapis/java-bigtable#1939 - or it can get stuck in gax itself (dont have a pointer handy) Guava futures provide some observability for ListenableFutures, but in creating the custom ApiFutures in gax, we lose that functionality. This PR sprinkles a few to toString to allow callers to inspect the internal state of the operation. For example with these changes, the toString() of the future returned from bigtableDataClient.mutateRows() changes from TransformFuture@652ce654[status=PENDING, info=[inputFuture=[com.google.api.core.ApiFutureToListenableFuture@522ba524], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@29c5ee1d]]] to ListenableFutureToApiFuture{delegate=TransformFuture@7ac9af2a[status=PENDING, info=[inputFuture=[ApiFutureToListenableFuture{apiFuture=CallbackChainRetryingFuture{super=com.google.api.gax.retrying.CallbackChainRetryingFuture@7bb004b8[status=PENDING], latestCompletedAttemptResult=null, attemptResult=null, attemptSettings=TimedAttemptSettings{globalSettings=RetrySettings{totalTimeout=PT10M, initialRetryDelay=PT0.01S, retryDelayMultiplier=2.0, maxRetryDelay=PT1M, maxAttempts=0, jittered=true, initialRpcTimeout=PT1M, rpcTimeoutMultiplier=1.0, maxRpcTimeout=PT1M}, retryDelay=PT0S, rpcTimeout=PT1M, randomizedRetryDelay=PT0S, attemptCount=0, overallAttemptCount=0, firstAttemptStartTimeNanos=635709620001791}}}], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@652ce654]]]} This allows us to reason about whats stuck. I'm working another PR that will add a close(timeout) to the Batcher that will use this functionality to identify why batcher.close() timed out
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blakeli0
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Aug 30, 2024
Sometimes an operation can get stuck indefinitely. The underlying reasons can vary significantly: - the underlying attempt rpc can get stuck due to a bug in grpc (ie grpc/grpc-java#11026) - the operation can get stuck in layers above gax: googleapis/java-bigtable#1939 - or it can get stuck in gax itself (dont have a pointer handy) Guava futures provide some observability for ListenableFutures, but in creating the custom ApiFutures in gax, we lose that functionality. This PR sprinkles a few to toString to allow callers to inspect the internal state of the operation. For example with these changes, the toString() of the future returned from bigtableDataClient.mutateRows() changes from > TransformFuture@652ce654[status=PENDING, info=[inputFuture=[com.google.api.core.ApiFutureToListenableFuture@522ba524], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@29c5ee1d]]] to > ListenableFutureToApiFuture{delegate=TransformFuture@7ac9af2a[status=PENDING, info=[inputFuture=[ApiFutureToListenableFuture{apiFuture=CallbackChainRetryingFuture{super=com.google.api.gax.retrying.CallbackChainRetryingFuture@7bb004b8[status=PENDING], latestCompletedAttemptResult=null, attemptResult=null, attemptSettings=TimedAttemptSettings{globalSettings=RetrySettings{totalTimeout=PT10M, initialRetryDelay=PT0.01S, retryDelayMultiplier=2.0, maxRetryDelay=PT1M, maxAttempts=0, jittered=true, initialRpcTimeout=PT1M, rpcTimeoutMultiplier=1.0, maxRpcTimeout=PT1M}, retryDelay=PT0S, rpcTimeout=PT1M, randomizedRetryDelay=PT0S, attemptCount=0, overallAttemptCount=0, firstAttemptStartTimeNanos=635709620001791}}}], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@652ce654]]]} This allows us to reason about whats stuck. I'm working another PR that will add a close(timeout) to the Batcher that will use this functionality to identify why batcher.close() timed out
ldetmer
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Sep 17, 2024
Sometimes an operation can get stuck indefinitely. The underlying reasons can vary significantly: - the underlying attempt rpc can get stuck due to a bug in grpc (ie grpc/grpc-java#11026) - the operation can get stuck in layers above gax: googleapis/java-bigtable#1939 - or it can get stuck in gax itself (dont have a pointer handy) Guava futures provide some observability for ListenableFutures, but in creating the custom ApiFutures in gax, we lose that functionality. This PR sprinkles a few to toString to allow callers to inspect the internal state of the operation. For example with these changes, the toString() of the future returned from bigtableDataClient.mutateRows() changes from > TransformFuture@652ce654[status=PENDING, info=[inputFuture=[com.google.api.core.ApiFutureToListenableFuture@522ba524], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@29c5ee1d]]] to > ListenableFutureToApiFuture{delegate=TransformFuture@7ac9af2a[status=PENDING, info=[inputFuture=[ApiFutureToListenableFuture{apiFuture=CallbackChainRetryingFuture{super=com.google.api.gax.retrying.CallbackChainRetryingFuture@7bb004b8[status=PENDING], latestCompletedAttemptResult=null, attemptResult=null, attemptSettings=TimedAttemptSettings{globalSettings=RetrySettings{totalTimeout=PT10M, initialRetryDelay=PT0.01S, retryDelayMultiplier=2.0, maxRetryDelay=PT1M, maxAttempts=0, jittered=true, initialRpcTimeout=PT1M, rpcTimeoutMultiplier=1.0, maxRpcTimeout=PT1M}, retryDelay=PT0S, rpcTimeout=PT1M, randomizedRetryDelay=PT0S, attemptCount=0, overallAttemptCount=0, firstAttemptStartTimeNanos=635709620001791}}}], function=[com.google.api.core.ApiFutures$ApiFunctionToGuavaFunction@652ce654]]]} This allows us to reason about whats stuck. I'm working another PR that will add a close(timeout) to the Batcher that will use this functionality to identify why batcher.close() timed out
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This would manifest as a hang when iterating over a ServerStream from ReadRows
Change-Id: I74533c6714b40a68ec0ef81dadac747e10bee39d
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