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[SPARK-25148] Executors launched with Spark on K8s client mode should prefix name with - Spark - [issue]
...With the latest added client mode with Spark on k8s, executors launched by default are all named "spark-exec-#". Which means when multiple jobs are launched in the same cluster, they often h...    Author: Timothy Chen , 2018-08-17, 17:32
[expand - 2 more] - [SPARK on MESOS] Avoid re-fetching Spark binary - Spark - [mail # user]
...I know there are some community efforts shown in Spark summits before,mostly around reusing the same Spark context with multiple “jobs”.I don’t think reducing Spark job startup time is a com...
   Author: Timothy Chen , 2018-07-06, 23:06
Retry option and range resource configuration for Spark job on Mesos - Spark - [mail # user]
...Hi Tien,There is no retry on the job level as we expect the user to retry, and asyou mention we tolerate tasks retry already.There is no request/limit type resource configuration that you de...
   Author: Timothy Chen , 2018-07-06, 23:00
[SPARK-23953] Add get_json_scalar function - Spark - [issue]
...Besides get_json_object which returns a JSON string in a return type, we should add a function "get_json_scalar" that returns a scalar type assuming the path maps to a scalar (boolean, numbe...    Author: Timothy Chen , 2018-04-12, 18:59
[SPARK-19320] Allow guaranteed amount of GPU to be used when launching jobs - Spark - [issue]
...Currently the only configuration for using GPUs with Mesos is setting the maximum amount of GPUs a job will take from an offer, but doesn't guarantee exactly how much.We should have a config...    Author: Timothy Chen , 2018-04-10, 19:18
Spark Tuning Tool - Spark - [mail # user]
...Interested to try as well.TimOn Tue, Jan 23, 2018 at 5:54 PM, Raj Adyanthaya  wrote:> Its very interesting and I do agree that it will get a lot of traction once> made open source...
   Author: Timothy Chen , 2018-01-24, 17:02
Integration testing and Scheduler Backends - Spark - [mail # dev]
...2) will be ideal but given the velocity of main branch, what Mesosended up doing was simply having a separate repo since it will taketoo long to merge back to main.We ended up running it pre...
   Author: Timothy Chen , 2018-01-09, 07:09
Java API map fields question (usage error or bug) - Arrow - [mail # dev]
...Hey Derek,I don’t think you have attached your example code.TimOn Wed, Dec 6, 2017 at 1:38 PM Derek Bennett  wrote:> Hello,>> I've been using the Java API to send and receive d...
   Author: Timothy Chen , 2017-12-06, 20:16
[SPARK-2691] Allow Spark on Mesos to be launched with Docker - Spark - [issue]
...Currently to launch Spark with Mesos one must upload a tarball and specifiy the executor URI to be passed in that is to be downloaded on each slave or even each execution depending coarse mo...    Author: Timothy Chen , 2017-09-25, 01:46
Fault Injection - Kafka - [mail # dev]
...Hi Colin,The Kibosh code is just a README for now, is it going to be published soon?TimOn Tue, Aug 22, 2017 at 11:44 AM, Colin McCabe  wrote:> Hi all,>> I've been working on a ...
   Author: Timothy Chen , 2017-08-22, 19:36