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 >> > >
