Hi Keith, It is constructed in here:
https://github.com/apache/incubator-twill/blob/master/twill-core/src/main/java/org/apache/twill/internal/AbstractTwillService.java#L194 Basically it is explicitly constructed with a JsonObject (from Gson library) that has a "data" member. I don't see how it can have the "member" level added. Is it caused by a different Gson version? If that's the case, what version of Gson are you using? Terence On Tue, Jun 14, 2016 at 10:59 AM, Keith Turner <[email protected]> wrote: > At runtime I changes my dependencies and I started getting an error in > Twill. I was seeing an NPE at the following line. > > > org.apache.twill.yarn.YarnTwillRunnerService.getApplicationId(YarnTwillRunnerService.java:542) > > ~[twill-yarn-0.6.0-incubating.jar:0.6.0-incubating] > > > Through zookeeper and twill logging, I tracked the cause down to the > following data being in zookeeper. > > The following path : > > /fluo-app-phrasecount/instances/2e0b9fe4-6e1c-4ecc-a454-d821e8453cb9 > > had the following data : > > {"members":{"data":{"appId":1,"appIdClusterTime":1465862775942,"containerId":"container_1465862775942_0001_01_000001"}}} > > > When I run with a set of dependencies that works, I see the following data > in zookeeper. This has a root of data in the json as opposed to the root > of members. > > > {"data":{"appId":1,"appIdClusterTime":1465866930685,"containerId":"container_1465866930685_0001_01_000001"}} > > > Could someone help me locate the code that sets the value of > /fluo-app-phrasecount/instances/2e0b9fe4-6e1c-4ecc-a454-d821e8453cb9 in > zookeeper? If I can locate that code, maybe I can understand why changing > my deps changed the value in ZK to have a root of members. > > Thanks, > > Keith >
