Hi,

I noticed that you configured the Akka framesize to 2GB (the default being
10MB).
This appears like quite a lot to me and might be causing problems since the
exceptions indicate an Akka timeout issue.
Did configure the framesize for a particular reason that high?

It seems that you are running a custom build of Flink. Which version did
you base your build on?

Best, Fabian

2018-05-08 17:41 GMT+02:00 Chan, Regina <regina.c...@gs.com>:

> There’s no collect() explicitly from me. It has a cogroup operator before
> writing to DataSink.
>
>
>
>
>
> *From:* Fabian Hueske [mailto:fhue...@gmail.com]
> *Sent:* Monday, May 07, 2018 6:31 AM
> *To:* Chan, Regina [Tech]
> *Cc:* user@flink.apache.org; Newport, Billy [Tech]
> *Subject:* Re: Lost JobManager
>
>
>
> Hi Regina,
>
> I see from the logs that you are using the DataSet API.
>
> Are you trying to fetch a large result to your client using the collect()
> method?
>
> Best, Fabian
>
>
>
> 2018-05-02 0:38 GMT+02:00 Chan, Regina <regina.c...@gs.com>:
>
> Hi,
>
>
>
> I’m running a single TM with the following params -yn 1 -ys 2 -yjm 36864
> -ytm 24576 -yD akka.framesize=2097152000b
>
>
>
> I keep repeatedly getting this error where I’m losing connection to the
> JobManager. It’s not clear why, it seems like the job is finishing up until
> the Datasink but the JobManager is lost before that completes. I’ve
> attached the jobmanager logs. Snippet further below.
>
>
>
> org.apache.flink.client.program.ProgramInvocationException: The program
> execution failed: Couldn't retrieve the JobExecutionResult from the
> JobManager.
>
>         at org.apache.flink.client.program.ClusterClient.run(
> ClusterClient.java:478)
>
>         at org.apache.flink.yarn.YarnClusterClient.submitJob(
> YarnClusterClient.java:205)
>
>         at org.apache.flink.client.program.ClusterClient.run(
> ClusterClient.java:442)
>
>         at org.apache.flink.client.program.ClusterClient.run(
> ClusterClient.java:429)
>
>         at org.apache.flink.client.program.ContextEnvironment.
> execute(ContextEnvironment.java:62)
>
>         at org.apache.flink.api.java.ExecutionEnvironment.execute(
> ExecutionEnvironment.java:926)
>
>         at com.gs.ep.da.lake.refinerlib.flink.FlowDataBase.execute(
> FlowDataBase.java:40)
>
>         at com.gs.ep.da.lake.refinerlib.flink.FlowData.
> runPartialDataFlow(FlowData.java:148)
>
>         at com.gs.ep.da.lake.refinerlib.flink.FlowData.call(FlowData.
> java:56)
>
>         at com.gs.ep.da.lake.refinerlib.flink.FlowData.call(FlowData.
> java:24)
>
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>
>         at java.util.concurrent.Executors$RunnableAdapter.
> call(Executors.java:471)
>
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(
> ThreadPoolExecutor.java:1145)
>
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(
> ThreadPoolExecutor.java:615)
>
>         at java.lang.Thread.run(Thread.java:745)
>
> Caused by: org.apache.flink.runtime.client.JobExecutionException:
> Couldn't retrieve the JobExecutionResult from the JobManager.
>
>         at org.apache.flink.runtime.client.JobClient.
> awaitJobResult(JobClient.java:309)
>
>         at org.apache.flink.runtime.client.JobClient.
> submitJobAndWait(JobClient.java:396)
>
>         at org.apache.flink.client.program.ClusterClient.run(
> ClusterClient.java:467)
>
>         ... 15 more
>
> Caused by: 
> org.apache.flink.runtime.client.JobClientActorConnectionTimeoutException:
> Lost connection to the JobManager.
>
>         at org.apache.flink.runtime.client.JobClientActor.
> handleMessage(JobClientActor.java:219)
>
>         at org.apache.flink.runtime.akka.FlinkUntypedActor.
> handleLeaderSessionID(FlinkUntypedActor.java:101)
>
>         at org.apache.flink.runtime.akka.FlinkUntypedActor.onReceive(
> FlinkUntypedActor.java:68)
>
>         at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(
> UntypedActor.scala:167)
>
>         at akka.actor.Actor$class.aroundReceive(Actor.scala:467)
>
>         at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97)
>
>         at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
>
>         at akka.actor.ActorCell.invoke(ActorCell.scala:487)
>
>         at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
>
>         at akka.dispatch.Mailbox.run(Mailbox.scala:220)
>
>         at akka.dispatch.ForkJoinExecutorConfigurator$
> AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
>
>         at scala.concurrent.forkjoin.ForkJoinTask.doExec(
> ForkJoinTask.java:260)
>
>         at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.
> runTask(ForkJoinPool.java:1339)
>
>         at scala.concurrent.forkjoin.ForkJoinPool.runWorker(
> ForkJoinPool.java:1979)
>
>         at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(
> ForkJoinWorkerThread.java:107)
>
>
>
>
>
> --------------
>
> Jobmanager logs below:
>
>
>
> 506735 [flink-akka.actor.default-dispatcher-18] INFO
> org.apache.flink.runtime.executiongraph.ExecutionGraph - Map (Map at
> handleMilestoning(MergeTask.java:287)) (1/1) (
> b688af3e269a022daa48e1db7adf4b34) switched from RUNNING to FINISHED.
>
> 857174 [flink-akka.actor.default-dispatcher-19] INFO
> org.apache.flink.yarn.YarnJobManager - Stopping JobManager with final
> application status SUCCEEDED and diagnostics: Flink YARN Client requested
> shutdown
>
> 857175 [flink-akka.actor.default-dispatcher-21] INFO
> org.apache.flink.yarn.YarnFlinkResourceManager - Shutting down cluster
> with status SUCCEEDED : Flink YARN Client requested shutdown
>
> 857176 [flink-akka.actor.default-dispatcher-21] INFO
> org.apache.flink.yarn.YarnFlinkResourceManager - Unregistering
> application from the YARN Resource Manager
>
> 857180 [flink-akka.actor.default-dispatcher-21] INFO
> org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl - Waiting for
> application to be successfully unregistered.
>
> 857282 [AMRM Callback Handler Thread] INFO org.apache.hadoop.yarn.client.
> api.async.impl.AMRMClientAsyncImpl - Interrupted while waiting for queue
>
> java.lang.InterruptedException   at java.util.concurrent.locks.
> AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(
> AbstractQueuedSynchronizer.java:2017)
>
>             at java.util.concurrent.locks.AbstractQueuedSynchronizer$
> ConditionObject.await(AbstractQueuedSynchronizer.java:2052)
>
>             at java.util.concurrent.LinkedBlockingQueue.take(
> LinkedBlockingQueue.java:442)
>
>             at org.apache.hadoop.yarn.client.api.async.impl.
> AMRMClientAsyncImpl$CallbackHandlerThread.run(
> AMRMClientAsyncImpl.java:275)
>
> 857323 [flink-akka.actor.default-dispatcher-21] ERROR
> org.apache.hadoop.yarn.client.api.impl.NMClientImpl - Failed to stop
> Container container_1524967251050_56140_01_000003when stopping
> NMClientImpl
>
> 857323 [flink-akka.actor.default-dispatcher-21] INFO
> org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy -
> Closing proxy : d191291-019.dc.gs.com:45454
>
> 857326 [flink-akka.actor.default-dispatcher-19] INFO
> org.apache.flink.yarn.YarnJobManager - Deleting yarn application files
> under hdfs://d191291/user/delp/.flink/application_1524967251050_56140.
>
> 857326 [flink-akka.actor.default-dispatcher-27] ERROR
> org.apache.flink.yarn.YarnApplicationMasterRunner - Actor
> akka://flink/user/$b#256544107 terminated, stopping process...
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.http.authentication.kerberos.keytab;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.http.authentication.kerberos.principal;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.http.authentication.signature.secret.file;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.http.authentication.simple.anonymous.allowed;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.http.authentication.type;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.kerberos.kinit.command;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.rpc.protection;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.auth_to_local;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.authentication;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.authorization;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping;  Ignoring.
>
> 857345 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.base;  Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.bind.password.file;
> Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.search.attr.group.name
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__hadoop.security.group.mapping.ldap.search.attr.group.name&d=DwMFaQ&c=7563p3e2zaQw0AB1wrFVgyagb2IE5rTZOYPxLxfZlX4&r=vus_2CMQfE0wKmJ4Q_gOWWsBmKlgzMeEwtqShIeKvak&m=Ww2hPp6X8ppGooZTMuCR2cJVwSQ4M6EoagwzMM87j-Y&s=hUHwzsw2Dw126sqpY6lFqkaIhtSlCn3uRoW3LSxCmzw&e=>;
> Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.search.attr.member;
> Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.search.filter.group;
> Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: hadoop.security.group.mapping.ldap.url;  Ignoring.
>
> 857346 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/core-site.xml:an attempt to override final
> parameter: ipc.client.fallback-to-simple-auth-allowed;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.block.access.token.enable;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.client.block.write.replace-datanode-on-failure.policy;
> Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.client.read.shortcircuit;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.cluster.administrators;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.datanode.address;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.datanode.http.address;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.datanode.ipc.address;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.datanode.kerberos.principal;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.datanode.keytab.file;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.domain.socket.path;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.hosts;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.hosts.exclude;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.namenode.kerberos.internal.spnego.principal;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.namenode.kerberos.principal;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.namenode.keytab.file;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.permissions.superusergroup;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.secondary.namenode.kerberos.internal.spnego.principal;
> Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.secondary.namenode.kerberos.principal;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.secondary.namenode.keytab.file;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.web.authentication.kerberos.keytab;  Ignoring.
>
> 857347 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.conf.Configuration - /gns/software/infra/big-data/
> hadoop/hdp-2.2.gs6/hadoop/conf/hdfs-site.xml:an attempt to override final
> parameter: dfs.web.authentication.kerberos.principal;  Ignoring.
>
> 857349 [flink-akka.actor.default-dispatcher-19] WARN
> org.apache.hadoop.hdfs.BlockReaderLocal - The short-circuit local reads
> feature cannot be used because libhadoop cannot be loaded.
>
> 857356 [flink-akka.actor.default-dispatcher-19] INFO
> org.apache.flink.yarn.YarnJobManager - Stopping JobManager akka.tcp://
> fl...@d191291-053.dc.gs.com:33812/user/jobmanager.
>
> 857357 [flink-akka.actor.default-dispatcher-21] INFO
> org.apache.flink.runtime.executiongraph.ExecutionGraph - Job Flink Java
> Job at Tue May 01 17:58:37 EDT 2018 (1673e636d863ff81916b47c4296ed026)
> switched from state RUNNING to SUSPENDED.
>
> java.lang.Exception: The JobManager is shutting down.
>
>             at org.apache.flink.runtime.jobmanager.JobManager.
> postStop(JobManager.scala:240)
>
>             at akka.actor.Actor$class.aroundPostStop(Actor.scala:477)
>
>             at org.apache.flink.runtime.jobmanager.JobManager.
> aroundPostStop(JobManager.scala:125)
>
>             at akka.actor.dungeon.FaultHandling$class.akka$
> actor$dungeon$FaultHandling$$finishTerminate(FaultHandling.scala:210)
>
>             at akka.actor.dungeon.FaultHandling$class.terminate(
> FaultHandling.scala:172)
>
>             at akka.actor.ActorCell.terminate(ActorCell.scala:369)
>
>             at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:462)
>
>             at akka.actor.ActorCell.systemInvoke(ActorCell.scala:478)
>
>             at akka.dispatch.Mailbox.processAllSystemMessages(
> Mailbox.scala:263)
>
>             at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:241)
>
>             at akka.dispatch.Mailbox.run(Mailbox.scala:220)
>
>             at akka.dispatch.ForkJoinExecutorConfigurator$
> AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
>
>             at scala.concurrent.forkjoin.ForkJoinTask.doExec(
> ForkJoinTask.java:260)
>
>             at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.
> runTask(ForkJoinPool.java:1339)
>
>             at scala.concurrent.forkjoin.ForkJoinPool.runWorker(
> ForkJoinPool.java:1979)
>
>             at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(
> ForkJoinWorkerThread.java:107)
>
>
>
> *Regina Chan*
>
> *Goldman Sachs** –* Enterprise Platforms, Data Architecture
>
> *30 Hudson Street, 37th floor | Jersey City, NY 07302
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__maps.google.com_-3Fq-3D30-2BHudson-2BStreet-2C-2B37th-2Bfloor-2B-257C-2BJersey-2BCity-2C-2BNY-2B07302-26entry-3Dgmail-26source-3Dg&d=DwMFaQ&c=7563p3e2zaQw0AB1wrFVgyagb2IE5rTZOYPxLxfZlX4&r=vus_2CMQfE0wKmJ4Q_gOWWsBmKlgzMeEwtqShIeKvak&m=Ww2hPp6X8ppGooZTMuCR2cJVwSQ4M6EoagwzMM87j-Y&s=tsY3C_SI_e0hPm1irahnu7gMx-Sch8AAH75csCikTss&e=>*
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