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google-nomulus/java/google/registry/flows
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mcilwain ce136f9285 Add short-term host/contact caching for high-QPS domain mutations 
After investigating common domain create/update command usage
patterns by registrars, we noticed that it is frequent for a
given registrar to reuse both hosts (using a standardized set of
nameservers) as well as contacts (e.g. for privacy/proxy
services). With these usage patterns, potential per-registrar
throughput during high volume scenarios (i.e. first moments of
General Availability) suffers from hitting hot keys in Datastore.

The solution, implemented in this CL, is to add short-term
in-memory caching for contacts and hosts, analogous to how we are
already caching Registry and Registrar entities.  These new
cached paths are only used inside domain flows to determine
existence and deleted/pending delete status of contacts and
hosts. This is a potential loss of transactional consistency, but
in practice it's hard to imagine this having negative effects, as
contacts or hosts that are in use cannot be deleted, and caching
would primarily affect widely used contacts and hosts.

Note that this caching can be turned on or off through a
configuration option, and by default would be off. We'd only want
it on when we really needed it, i.e. during a big launch.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187093378
2018-03-06 19:05:20 -05:00
..
annotations Make FlowRunner log ICANN activity report field name 2017-03-27 13:32:57 -04:00
async Move metrics dependencies to artifacts under Maven groupId com.google.monitoring-client 2018-01-04 17:12:35 -05:00
contact Remove unnecessary generic type arguments 2017-11-21 18:17:31 -05:00
custom Remove unnecessary generic type arguments 2017-11-21 18:17:31 -05:00
domain Add short-term host/contact caching for high-QPS domain mutations 2018-03-06 19:05:20 -05:00
exceptions Allow domain transfers with 0 period and in auto-renew grace period 2017-10-04 16:16:45 -04:00
host Clean up some code quality issues 2017-12-01 22:14:06 -05:00
picker Make EppInput.getSingleExtension() return Optional, not @Nullable 2018-01-19 14:40:10 -05:00
poll Remove leniency on poll message ID format without years in them 2018-02-20 15:12:43 -05:00
session Switch from Guava Optionals to Java 8 Optionals 2017-10-24 16:53:47 -04:00
soy Remove autoescape="strict" attributes from Soy templates. 2017-10-04 16:16:45 -04:00
BUILD Move metrics dependencies to artifacts under Maven groupId com.google.monitoring-client 2018-01-04 17:12:35 -05:00
CheckApiAction.java Remove unnecessary generic type arguments 2017-11-21 18:17:31 -05:00
EppConsoleAction.java Change @Auth to an AutoValue, and created a set of predefined Auths 2017-08-01 16:33:10 -04:00
EppController.java Rationalize logging statements across codebase 2018-01-19 14:56:45 -05:00
EppException.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
EppMetrics.java Move metrics dependencies to artifacts under Maven groupId com.google.monitoring-client 2018-01-04 17:12:35 -05:00
EppRequestHandler.java Set HTTP header when processing logout request 2017-11-07 17:30:13 -05:00
EppRequestSource.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
EppTlsAction.java Change @Auth to an AutoValue, and created a set of predefined Auths 2017-08-01 16:33:10 -04:00
EppToolAction.java Change @Auth to an AutoValue, and created a set of predefined Auths 2017-08-01 16:33:10 -04:00
EppXmlTransformer.java Rationalize logging statements across codebase 2018-01-19 14:56:45 -05:00
ExtensionManager.java Run automatic Java 8 conversion over codebase 2017-10-10 12:09:41 -04:00
Flow.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
FlowComponent.java Add extensibility framework for allocation tokens 2018-02-01 21:54:29 -05:00
FlowMetadata.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
FlowModule.java Make EppInput.getSingleExtension() return Optional, not @Nullable 2018-01-19 14:40:10 -05:00
FlowReporter.java Rationalize logging statements across codebase 2018-01-19 14:56:45 -05:00
FlowRunner.java Rationalize logging statements across codebase 2018-01-19 14:56:45 -05:00
FlowScope.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
FlowUtils.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
GaeUserCredentials.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
HttpSessionMetadata.java Switch from Guava Optionals to Java 8 Optionals 2017-10-24 16:53:47 -04:00
PasswordOnlyTransportCredentials.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
ResourceFlowUtils.java Replace com.google.common.base.Predicate with java.util.function.Predicate 2017-12-27 11:21:28 -05:00
ServerTridProvider.java Clean up some code quality issues 2017-12-01 22:14:06 -05:00
ServerTridProviderImpl.java Refactor out creation of server TRIDs so they can be tested 2017-04-13 10:55:47 -04:00
ServerTridProviderModule.java Refactor out creation of server TRIDs so they can be tested 2017-04-13 10:55:47 -04:00
SessionMetadata.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
StatelessRequestSessionMetadata.java Update copyright year on all license headers 2017-02-02 16:27:22 -05:00
TlsCredentials.java Switch from Guava Optionals to Java 8 Optionals 2017-10-24 16:53:47 -04:00
TransactionalFlow.java Refer to Datastore everywhere correctly by its capitalized form 2017-02-17 12:12:12 -05:00
TransportCredentials.java Clean up some code quality issues 2017-12-01 22:14:06 -05:00