Hi Krishna, Are you starting all AMs from the same JVM? Mind sharing the code you are using for your time testing?
Thx On Thu, Nov 21, 2013 at 6:11 AM, Krishna Kishore Bonagiri < write2kish...@gmail.com> wrote: > Hi Alejandro, > > I have modified the code in > > > hadoop-2.2.0-src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/main/java/org/apache/hadoop/yarn/applications/unmanagedamlauncher/UnmanagedAMLauncher.java > > to submit multiple application masters one after another and still seeing > 800 to 900 ms being taken for the start() call on AMRMClientAsync in all > of those applications. > > Please suggest if you think I am missing something else > > Thanks, > Kishore > > > On Tue, Nov 19, 2013 at 6:07 PM, Krishna Kishore Bonagiri < > write2kish...@gmail.com> wrote: > >> Hi Alejandro, >> >> I don't know what are managed and unmanaged AMs, can you please explain >> me what are the difference and how are each of them launched? >> >> I tried to google for these terms and came >> across hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar, is it >> related to that? >> >> Thanks, >> Kishore >> >> >> On Tue, Nov 19, 2013 at 12:15 AM, Alejandro Abdelnur >> <t...@cloudera.com>wrote: >> >>> Kishore, >>> >>> Also, please specify if you are using managed or unmanaged AMs (the >>> numbers I've mentioned before are using unmanaged AMs). >>> >>> thx >>> >>> >>> On Sun, Nov 17, 2013 at 11:16 AM, Vinod Kumar Vavilapalli < >>> vino...@hortonworks.com> wrote: >>> >>>> It is just creating a connection to RM and shouldn't take that long. >>>> Can you please file a ticket so that we can look at it? >>>> >>>> JVM class loading overhead is one possibility but 1 sec is a bit too >>>> much. >>>> >>>> Thanks, >>>> +Vinod >>>> >>>> On Oct 21, 2013, at 7:16 AM, Krishna Kishore Bonagiri wrote: >>>> >>>> Hi, >>>> I am seeing the following call to start() on AMRMClientAsync taking >>>> from 0.9 to 1 second. Why does it take that long? Is there a way to reduce >>>> it, I mean does it depend on any of the interval parameters or so in >>>> configuration files? I have tried reducing the value of the first argument >>>> below from 1000 to 100 seconds also, but that doesn't help. >>>> >>>> AMRMClientAsync.CallbackHandler allocListener = new >>>> RMCallbackHandler(); >>>> amRMClient = AMRMClientAsync.createAMRMClientAsync(1000, >>>> allocListener); >>>> amRMClient.init(conf); >>>> amRMClient.start(); >>>> >>>> >>>> Thanks, >>>> Kishore >>>> >>>> >>>> >>>> CONFIDENTIALITY NOTICE >>>> NOTICE: This message is intended for the use of the individual or >>>> entity to which it is addressed and may contain information that is >>>> confidential, privileged and exempt from disclosure under applicable law. >>>> If the reader of this message is not the intended recipient, you are hereby >>>> notified that any printing, copying, dissemination, distribution, >>>> disclosure or forwarding of this communication is strictly prohibited. If >>>> you have received this communication in error, please contact the sender >>>> immediately and delete it from your system. Thank You. >>> >>> >>> >>> >>> -- >>> Alejandro >>> >> >> > -- Alejandro
