feat(spanner): support multiplexed session for Partitioned operations #3231
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google-cloud-spanner/src/main/java/com/google/cloud/spanner/BatchClientImpl.java
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google-cloud-spanner/src/main/java/com/google/cloud/spanner/SessionClient.java
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google-cloud-spanner/src/main/java/com/google/cloud/spanner/BatchClientImpl.java
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google-cloud-spanner/src/main/java/com/google/cloud/spanner/DatabaseClientImpl.java
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...oud-spanner/src/main/java/com/google/cloud/spanner/DelayedMultiplexedSessionTransaction.java
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Co-authored-by: Knut Olav Løite <[email protected]>
Co-authored-by: Knut Olav Løite <[email protected]>
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…and create fresh session after expiration date.
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… Multiplexed Session for Partitioned Ops is not available to customers.
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…googleapis#3231) * feat(spanner): support multiplexed session for Partitioned read or query. * chore(spanner): lint fixes * feat(spanner): support multiplexed session for Partitioned DML operations. * lint(spanner): javadoc fixes. * feat(spanner): Updated unit tests of Partitioned operations for Multiplexed Session. * feat(spanner): Updated unit tests of Partitioned operations for Multiplexed Session. * lint(spanner): Apply suggestions from code review Co-authored-by: Knut Olav Løite <[email protected]> * lint(spanner): Apply suggestions from code review Co-authored-by: Knut Olav Løite <[email protected]> * feat(spanner): Modified BatchClientImpl to store multiplexed session and create fresh session after expiration date. * feat(spanner): Removed env variable for Partitioned Ops ensuring that Multiplexed Session for Partitioned Ops is not available to customers. * lint(spanner): Removed unused variables. --------- Co-authored-by: Knut Olav Løite <[email protected]>
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With multiplexed sessions, the client optimises and runs multiple applicable requests concurrently on a single session. A single multiplexed session is sufficient to handle all concurrent partitioned read, query and dml operations.
This can be enabled through an environment variable
GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_PARTITIONED_OPS.