[appengine-java] Re: HELP: My app is getting lots of HardDeadlineExceededError today.
Used appstat and didn't notice anything out of the ordinary. Still thinking that the main issue here is exploding index and I'm not sure how to get around that other than to cut search features from the site, but that would more or less make the app not very useful. On Aug 12, 10:19 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Thanks for the response. I wanted to get back to you sooner, but I have been scrambling to optimize the application. I'm making some progress, however, it is still a relative CPU hog due to an exploding index and the frequent updates the application needs to make in order to keep the data current. 71000 CPU to save 100 records seems rather expensive?. My next step is to run appstat on it and see what is going on. Current version of the app is running a sc2pf6.appstat.com. The older version is running at sc2pf2.appspot.com. On Aug 9, 3:51 pm, Ikai L (Google) ika...@google.com wrote: I've got a few questions for you: 1. What is your application ID? 2. What are you doing in the tasks? 3. Are you using transactions or entity groups? 4. Are you writing to the same datastore entities? My guess is that you are running into write contention in the datastore. It'd be very helpful to understand what it is you're doing. App Engine will scale up the number of instances if you are returning web requests in less than 800ms (thought 400ms is optimal), but if you are writing to a small number of entities over and over it won't be able to resolve that bottleneck. On Mon, Aug 9, 2010 at 12:28 PM, SC2PlayerFinder sc2playerfin...@gmail.comwrote: Further explanation. I had a large increase in users which caused a chain reaction. Tasks that used to take about 10-20 seconds started taking longer and using more CPU time. Interestingly, these tasks are doing the exact same thing, but under a higher load, they take longer and use more CPU time. I can understand the process taking longer under load, but why would it use a significant amount more of CPU time? I will admit that my code is not the most optimal, but then again isn't the main focus of GAE built in scalability and speed? In short, I needed on the fly scalability and speed with an influx of new users and I don't feel like I got that with GAE? Worse, there was no way for me to contact someone who could help me out. I'm left with the feeling that GAE does not do a good job of scaling up and it is kind of slow as well. Creating and updating records seems painfully expensive, time out due to new instance creation happens way to often. Now this is fine for a free app, but I'm going way over my daily free quota and it is not cheap. Maybe I should be using Phython and not Java? On Aug 6, 10:52 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Application was running ok yesturday. Still had about 10% HardDeadlineExceededError, but the same task that executed yesturday are not failing almost 100% of the time right now. I even cut back the amount of records it is processing from 100 to 10 and it is still failing. How do I get ahold of someone at Google, to see if there is something wrong with the server my app is on or something. Why would the same proccess consume more CPU time one day than another? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog:http://googleappengine.blogspot.com Twitter:http://twitter.com/app_engine Reddit:http://www.reddit.com/r/appengine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] want to specify two different fields in JPA or clause
You might want to check Query filters here: http://code.google.com/appengine/docs/java/datastore/queriesandindexes.html#Introducing_Queries a query can only have one not-equal filter, and such a query cannot have other inequality filters A workaround can be to add two extra boolean properties hasContactGroupId and hasContactId and query on this (or one boolean property hasContactGroupOrContact). One disadvantage here is that you need to remember to update these fields every time the contact info changes. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Local Unit Testing with UserService: userId==null problem
No, i didn't fix it. But now I create issue for this: http://code.google.com/p/googleappengine/issues/detail?id=3579 On Aug 12, 1:37 pm, poe stefan.poe...@googlemail.com wrote: I have the same Problem, did you fix your problem? Please tell me how you did it. Thanks Poe On 30 Jun., 12:18, Dmitriy T. 403...@gmail.com wrote: I use LocalUnitTesting and recently change auth system and start using userService.getCurrentUser().getUserId() for identification. Problem is that its always return null in Local Testing (federatedIdentity==null too). For many reasons that unacceptable for me. Is that unfixable, or exist something like setUserId for LocalServiceTestHelper? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Shared Datastore via Multiple App Versions Locally
I should mention that I'm on Mac OS X for development. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Problems with OAuth
Resolved! The final gotcha was that the authorization token returned by AppEngine includes a '/' while the client library assumes that this token will be alphanumeric. http://code.google.com/p/oauth/issues/detail?id=182 Best, Alex On Aug 12, 12:04 am, Ikai L (Google) ika...@google.com wrote: You do need to register your application to get a consumer key and secret:: http://code.google.com/apis/accounts/docs/OAuth.html#prepRegisterhttp://code.google.com/apis/accounts/docs/RegistrationForWebAppsAuto Here's a tool written by a friend of mine that I used to verify an OAuth setup, unfortunately it requires a Ruby on Rails setup ... http://github.com/episod/oauth-dancer I'm not familiar with .NET, but do you have any other OAuth clients you can try? On Wed, Aug 11, 2010 at 12:17 AM, Alex Bertram akbert...@gmail.com wrote: Hi, I'm trying to use the OAuth service but am running up against a brick wall. The client is a desktop application and I'm using the .NET code found herehttp://oauth.googlecode.com/svn/code/csharp/OAuthBase.cs I've only been able to get 400 Bad Request responses from my app, and the requests to _ah/OAuth* do not appear in the logs. I've tried both http and https. Do I need to register the consumer somewhere? Thanks for any pointers! Here are the raw request / response from Fiddler: POST /_ah/OAuthGetRequestToken HTTP/1.1 User-Agent: Desktop Addin Content-Type: application/x-www-form-urlencoded Host: arctileserver.appspot.com Content-Length: 230 Connection: Keep-Alive oauth_callback=http%3A%2F%2Farctileserver.appspot.comoauth_consumer_key= arctiles.comoauth_nonce=2173727 HTTP/1.1 400 Bad Request Date: Wed, 11 Aug 2010 06:36:37 GMT Content-Type: text/html; charset=UTF-8 Server: Google Frontend Content-Length: 273 htmlhead meta http-equiv=content-type content=text/html;charset=utf-8 title400 Bad Request/title /head body text=#00 bgcolor=#ff h1Error: Bad Request/h1 h2Your client has issued a malformed or illegal request./h2 h2/h2 /body/html -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog:http://googleappengine.blogspot.com Twitter:http://twitter.com/app_engine Reddit:http://www.reddit.com/r/appengine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Problem with one 2 many relationships
Hi, group!!!
Sometimes my GAE application can't persist collection of child
elements.
I have following objects structure.
@PersistenceCapable(table = persons, identityType =
IdentityType.APPLICATION)
public class PersonEntity {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private String name;
@Persistent
private ListOfferEntity offers = new ArrayListOfferEntity();
// ... getter and setter
}
@PersistenceCapable(table = offers, identityType =
IdentityType.APPLICATION)
public class OfferEntity {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent
private ListChoosedElementEntity choosedElements = new
ArrayListChoosedElementEntity();
// ... getter and setter
}
@PersistenceCapable(table = offer_selections_ce, identityType =
IdentityType.APPLICATION)
public class ChoosedElementEntity {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private com.google.appengine.api.datastore.Key id;
@Persistent
private String filed;
// ... getter and setter
}
First of all I try to persist object of class PersonEntity. It is all
right.
PersistenceManager = null;
try {
pm = getPersistenceManager();
PersonEntity person = new PersonEntity();
// set person fields
pm.makePersistent(person);
} catch (Throwable th) {
} finally {
if (null != pm) {
pm.close();
}
}
Then, I try to add some child elements to OfferEntity. And I am
thoroughly confused: Sometimes child object persists and sometimes
not. This behavior is very strange.
String offerId = ...;
PersistenceManager pm = null;
try {
pm = getPersistenceManager();
OfferEntity dbOffer = pm.getObjectById(OfferEntity.class,
KeyFactory.stringToKey(offerId));
if (null != dbOffer) {
ChoosedElementEntity element = new ChoosedElementEntity();
// set element fields
dbOffer.getChoosedElements().add(element);
log.log(Level.INFO, try to commit 'added choosed elements':
offerId= + dbOffer.getId() + , size: +
dbOffer.getChoosedElements().size() + , elements: +
dbOffer.getChoosedElements());
pm.makePersistent(dbOffer);
}
} catch (Throwable th) {
log.log(Level.SEVERE, Can't add choosed elements to offer entity:
offerId= + offerId, th);
throw new ServiceException(Can't add choosed elements to offer
entity: offerId= + offerId, th);
} finally {
if (null != pm) {
pm.close();
}
}
I try to analyze some child information before persist parent object
and I note, that from time to time child element has/hasn't value for
primary key.
Example:
try to commit 'added choosed elements': offerId=persons(1092001)/
offers(1), size: 1, elements:
[ChoosedElementEntity{id=persons(1092001)/offers(1)/
offer_selections_ce(5001), filed='filed765'}]
or
try to commit 'added choosed elements': offerId=persons(1092001)/
offers(1), size: 1, elements: [ChoosedElementEntity{id=null,
filed='filed766'}]
Any help would be greatly appreciated. Thanks.
--
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[appengine-java] update multiple one to many parent (JPA)
Hi guys:
I currently running into issues that: second update for
inventoryDao.addRootCategory(category2); will throw exception that:
Caused by: java.lang.IllegalArgumentException: can't operate on
multiple entity groups in a single transaction. found both Element {
type: CategoryEntity
id: 1
}
and Element {
type: CategoryEntity
id: 8
}
anyone can help?
///
public class CategoryEntity extends BaseEntity {
private static final long serialVersionUID = 4289692014710028046L;
private String categoryCode;
private int sortOrder;
//owned
@OneToMany(mappedBy = categoryEntity, cascade = CascadeType.ALL)
private ListProductEntity products = new
ArrayListProductEntity();
//unowned
@OneToMany(cascade = CascadeType.ALL)
private ListNameEntity categoryNames = new
ArrayListNameEntity();
//unowned
@OneToMany(cascade = CascadeType.ALL)
private ListImageEntity images = new ArrayListImageEntity();
//unowned
@OneToMany(cascade = CascadeType.ALL)
private ListAttributeEntity categoryAttributes = new
ArrayListAttributeEntity();
//unowned
@OneToMany(cascade = CascadeType.ALL)
private ListDescriptionEntity categoryDescriptions = new
ArrayListDescriptionEntity();
/
@Entity
@MappedSuperclass
public class BaseEntity implements Serializable {
private static final long serialVersionUID = -1042459872290397535L;
@Transient
public static SimpleDateFormat sdf = new SimpleDateFormat(dd-MM-
hh:mm:ss a);
@Temporal(TemporalType.TIMESTAMP)
private Date creationDate;
private String creationDateString = ;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key key;
@Version
private long version;
public BaseEntity() {
setCreationDate(Calendar.getInstance().getTime());
}
/**
* @see java.lang.Object#equals(Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
BaseEntity other = (BaseEntity) obj;
if (getKey() == null) {
if (other.getKey() != null)
return false;
} else if (!getKey().equals(other.getKey())) {
return false;
}
if (getKey() != null other.getKey() != null) {
if (getKey().getId() == other.getKey().getId()) {
return true;
} else {
return false;
}
}
return true;
}
public Date getCreationDate() {
return creationDate;
}
public String getCreationDateString() {
return creationDateString;
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((getKey() == null) ? 0 :
getKey().hashCode());
return result;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
if (null != creationDate) {
this.creationDateString = sdf.format(creationDate);
}
}
public void setCreationDateString(String creationDateString) {
this.creationDateString = creationDateString;
}
public long getVersion() {
return version;
}
public void setVersion(long version) {
this.version = version;
}
public Key getKey() {
return key;
}
public void setKey(Key key) {
this.key = key;
}
}
/
public CategoryEntity addRootCategory(CategoryEntity category) throws
GcommerceException {
if (null != category) {
if (null != category.getKey()) {
throw new
GcommerceEntityAlreadyPersistentException(CategoryEntity.class.getName());
}
try {
getEntityManager().getTransaction().begin();
getEntityManager().persist(category);
getEntityManager().getTransaction().commit();
return category;
} finally {
if
(getEntityManager().getTransaction().isActive()) {
getEntityManager().getTransaction().rollback();
}
}
}
[appengine-java] Re: EL works, but eclipse underlines red, and says can't find tag library - solutions?
Hi, here is the post I've made with the solution http://someprog.blogspot.com/2010/08/google-app-engine-can-not-find-tag.html. Hope it will help you. br, sergey On Aug 9, 11:19 pm, Ikai L (Google) ika...@google.com wrote: You know, I've had Eclipse installed across several computers, and I'm not sure which versions run what, but I've had JSP work on about half of them. I've never looked too much into the cause. Do you have WTP installed? I want to say this should solve your issue, except I am fairly certain it works on only one of my Eclipse instances. On another note, I've always been pretty happy working with JSPs in IntelliJ IDEA and Netbeans. It's only been Eclipse that has issues. On Sun, Aug 8, 2010 at 2:28 AM, Lou lssay...@gmail.com wrote: Hello, I've got the following in my jsp in eclipse: %@ page language=java contentType=text/html; charset=ISO-8859-1 pageEncoding=ISO-8859-1 isELIgnored=false % %@ taglib uri=http://java.sun.com/jstl/core_rt; prefix=c % All the code like c:out in eclipse works, but http://java.sun.com/jstl/core_rt is underlined red, and eclipse says can not find the tag library descriptor forhttp://java.sun.com/jstl/core_rt;. I also don't get any code completion in eclipse, which I suspect is because of this. Does someone know how to make the errors go away? I'm also not sure about thehttp://java.sun.com/jstl/core_rturl as well, as I've seen some slightly different urls floating around on the internet. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog:http://googleappengine.blogspot.com Twitter:http://twitter.com/app_engine Reddit:http://www.reddit.com/r/appengine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: HELP: My app is getting lots of HardDeadlineExceededError today.
Saving 100 entities in a single request, especially if a TON of indexes will be created is very expensive and will cause a lot of CPU to be consumed. There probably is a design that will allow you to accomplish what you need to do without this limitation. Can you post your use case? On Thu, Aug 12, 2010 at 11:02 PM, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Used appstat and didn't notice anything out of the ordinary. Still thinking that the main issue here is exploding index and I'm not sure how to get around that other than to cut search features from the site, but that would more or less make the app not very useful. On Aug 12, 10:19 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Thanks for the response. I wanted to get back to you sooner, but I have been scrambling to optimize the application. I'm making some progress, however, it is still a relative CPU hog due to an exploding index and the frequent updates the application needs to make in order to keep the data current. 71000 CPU to save 100 records seems rather expensive?. My next step is to run appstat on it and see what is going on. Current version of the app is running a sc2pf6.appstat.com. The older version is running at sc2pf2.appspot.com. On Aug 9, 3:51 pm, Ikai L (Google) ika...@google.com wrote: I've got a few questions for you: 1. What is your application ID? 2. What are you doing in the tasks? 3. Are you using transactions or entity groups? 4. Are you writing to the same datastore entities? My guess is that you are running into write contention in the datastore. It'd be very helpful to understand what it is you're doing. App Engine will scale up the number of instances if you are returning web requests in less than 800ms (thought 400ms is optimal), but if you are writing to a small number of entities over and over it won't be able to resolve that bottleneck. On Mon, Aug 9, 2010 at 12:28 PM, SC2PlayerFinder sc2playerfin...@gmail.comwrote: Further explanation. I had a large increase in users which caused a chain reaction. Tasks that used to take about 10-20 seconds started taking longer and using more CPU time. Interestingly, these tasks are doing the exact same thing, but under a higher load, they take longer and use more CPU time. I can understand the process taking longer under load, but why would it use a significant amount more of CPU time? I will admit that my code is not the most optimal, but then again isn't the main focus of GAE built in scalability and speed? In short, I needed on the fly scalability and speed with an influx of new users and I don't feel like I got that with GAE? Worse, there was no way for me to contact someone who could help me out. I'm left with the feeling that GAE does not do a good job of scaling up and it is kind of slow as well. Creating and updating records seems painfully expensive, time out due to new instance creation happens way to often. Now this is fine for a free app, but I'm going way over my daily free quota and it is not cheap. Maybe I should be using Phython and not Java? On Aug 6, 10:52 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Application was running ok yesturday. Still had about 10% HardDeadlineExceededError, but the same task that executed yesturday are not failing almost 100% of the time right now. I even cut back the amount of records it is processing from 100 to 10 and it is still failing. How do I get ahold of someone at Google, to see if there is something wrong with the server my app is on or something. Why would the same proccess consume more CPU time one day than another? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%2B unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine Blog:http://googleappengine.blogspot.com Twitter:http://twitter.com/app_engine Reddit:http://www.reddit.com/r/appengine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Shared Datastore via Multiple App Versions Locally
Your approach works fine for me on OS X. But the datastore is held in memory so only one app can use it at a time. If you make changes to the datastore you also need to wait until you see the log message Time to persist datastore... before shutting down the app. On 13 Aug 2010, at 09:14, millr wrote: Hello, I am aware that it is possible to run different applications that share the same datastore by using different version strings for the two applications, as detailed here: http://googleappengine.blogspot.com/2009/06/10-things-you-probably-didnt-know-about.html Now that I have found this approach I am wondering how I could pool the data on the development versions of the app that I am running locally. I am using JRuby for a rack app and have found that the datastore data is stored in /WEB-INF/appengine-generated/local_db.bin, so I tried creating a symlink from the original app to the same location within the new app I wish to share the datastore with. This didn't work an produced the following error: INFO: Failed to load from the backing store, /WEB-INF/appengine- generated/local_db.bin java.io.StreamCorruptedException: invalid stream header: 626F6F6B at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java: 783) Does anyone know of ways I can share this data successfully on my local versions of apps? Thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-java@googlegroups.com . To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en . -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: HELP: My app is getting lots of HardDeadlineExceededError today.
On 14 Aug 2010, at 00:24, Ikai L (Google) wrote: index and the frequent updates the application needs to make in order to keep the data current. 71000 CPU to save 100 records seems rather expensive?. My App uses 600,000 CPUms to save 100 entities so I don't think that is expensive at all! However updating an existing entity takes much less cpu, presumably because the datastore only updates those indexes that have changed. I have split entities into parts that change often and parts that don't so updates are cheaper. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] How to send data back to client side code?
Am not sure this belongs to GWT or GAE or both ... So here's my problem... I have one client/Example.java [contains all GWT code] calls a methods on server/SomeServiceImpl.java [Contains code to talk to dataStore] Wat server/SomeServiceImpl.java does is Featch data from Employee.Java [this is class used to store data in datastore JPA] So now my problem is.. as long as I send data in the form of String or StringArray to client/Example.java am fine, but now I tried to send ListEmployee to client/Example.java Doing so throws me an error as below.. Validating newly compiled units [ERROR] Errors in 'file:/C:/XXX/XXX/src/xxx/client/GreetingServiceAsync.java' [ERROR] Line 18: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/Example.java' [ERROR] Line 325: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/GreetingService.java' [ERROR] Line 19: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? Finding entry point classes [ERROR] Unable to find type 'xxx.client.Example' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly -- -Thanks -Srikanth.G -Hyderabad -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Guestbook (as-is) works locally, but deployed on gae will give Error: Server Error at signin
Do the log files provide any information? What's the URL to your
application?
On Thu, Aug 12, 2010 at 3:48 AM, Simpatico gabri...@mysimpatico.com wrote:
I've deployed the guestbook as it's provided in the demos folder but
when I click to sign in I get:
Error: Server Error
The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this
error message and the query that caused it.
This is essentially what I've been getting throughout. Indeed the
result is the same for the sample code:
public class GuestbookServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse
resp)
throws IOException {
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
if (user != null) {
resp.setContentType(text/plain);
resp.getWriter().println(Hello, + user.getNickname());
} else {
resp.sendRedirect(userService.createLoginURL(req.getRequestURI()));
}
}
}
I suspect it has to do with bug:
http://code.google.com/p/googleappengine/issues/detail?id=3552can=5colspec=ID%20Type%20Status%20Priority%20Stars%20Owner%20Summary%20Log%20Component
The bottom line is that I cannot deploy my application!
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Re: [appengine-java] How to send data back to client side code?
Hi, this is a GWT issue. The model class Employee must implements the com.google.gwt.user.client.rpc.IsSerializable interface in order to be able to be transcripted between server and client. Best Regards, Alessandro 2010/8/13 Sree ... gattasrika...@gmail.com Am not sure this belongs to GWT or GAE or both ... So here's my problem... I have one client/Example.java [contains all GWT code] calls a methods on server/SomeServiceImpl.java [Contains code to talk to dataStore] Wat server/SomeServiceImpl.java does is Featch data from Employee.Java [this is class used to store data in datastore JPA] So now my problem is.. as long as I send data in the form of String or StringArray to client/Example.java am fine, but now I tried to send ListEmployee to client/Example.java Doing so throws me an error as below.. Validating newly compiled units [ERROR] Errors in 'file:/C:/XXX/XXX/src/xxx/client/GreetingServiceAsync.java' [ERROR] Line 18: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/Example.java' [ERROR] Line 325: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/GreetingService.java' [ERROR] Line 19: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? Finding entry point classes [ERROR] Unable to find type 'xxx.client.Example' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly -- -Thanks -Srikanth.G -Hyderabad -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] How to send data back to client side code?
Yes.. after some google search i came to know abt that only http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Serializable_Objects http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Serializable_ObjectsBut am poor little developer so can you please help me out with a small example say my class looks like thishttp://code.google.com/appengine/docs/java/datastore/dataclasses.html#Child_Objects_and_Relationships On Sat, Aug 14, 2010 at 1:35 AM, Alessandro Barbosa alessandro.barb...@gmail.com wrote: Hi, this is a GWT issue. The model class Employee must implements the com.google.gwt.user.client.rpc.IsSerializable interface in order to be able to be transcripted between server and client. Best Regards, Alessandro 2010/8/13 Sree ... gattasrika...@gmail.com Am not sure this belongs to GWT or GAE or both ... So here's my problem... I have one client/Example.java [contains all GWT code] calls a methods on server/SomeServiceImpl.java [Contains code to talk to dataStore] Wat server/SomeServiceImpl.java does is Featch data from Employee.Java [this is class used to store data in datastore JPA] So now my problem is.. as long as I send data in the form of String or StringArray to client/Example.java am fine, but now I tried to send ListEmployee to client/Example.java Doing so throws me an error as below.. Validating newly compiled units [ERROR] Errors in 'file:/C:/XXX/XXX/src/xxx/client/GreetingServiceAsync.java' [ERROR] Line 18: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/Example.java' [ERROR] Line 325: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? [ERROR] Errors in 'file:/C:/XXX/XXX/src/client/GreetingService.java' [ERROR] Line 19: No source code is available for type xxx.server.Employee; did you forget to inherit a required module? Finding entry point classes [ERROR] Unable to find type 'xxx.client.Example' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly -- -Thanks -Srikanth.G -Hyderabad -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- -Thanks -Srikanth.G -Google India Ltd -Hyderabad -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] How to send data back to client side code?
Ok,
try this, move your class to some place inside /src/client and implement
IsSerializable.
I hope this be enough to solve the problem.
import ContactInfo;
// ... imports ...
@PersistenceCapable
public class Employee *implements
com.google.gwt.user.client.rpc.IsSerializable*{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private ContactInfo myContactInfo;
// ... accessors ...
}
Best Regards,
Alessandro
2010/8/13 Sree ... gattasrika...@gmail.com
Yes.. after some google search i came to know abt that only
http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Serializable_Objects
http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Serializable_ObjectsBut
am poor little developer so can you please help me out with a small example
say my class looks like
thishttp://code.google.com/appengine/docs/java/datastore/dataclasses.html#Child_Objects_and_Relationships
On Sat, Aug 14, 2010 at 1:35 AM, Alessandro Barbosa
alessandro.barb...@gmail.com wrote:
Hi,
this is a GWT issue. The model class Employee must implements
the com.google.gwt.user.client.rpc.IsSerializable interface in order to be
able to be transcripted between server and client.
Best Regards,
Alessandro
2010/8/13 Sree ... gattasrika...@gmail.com
Am not sure this belongs to GWT or GAE or both ...
So here's my problem...
I have one client/Example.java [contains all GWT code] calls a methods on
server/SomeServiceImpl.java [Contains code to talk to dataStore]
Wat server/SomeServiceImpl.java does is Featch data from Employee.Java
[this is class used to store data in datastore JPA]
So now my problem is.. as long as I send data in the form of String or
StringArray to client/Example.java am fine, but now I tried to send
ListEmployee to client/Example.java
Doing so throws me an error as below..
Validating newly compiled units
[ERROR] Errors in
'file:/C:/XXX/XXX/src/xxx/client/GreetingServiceAsync.java'
[ERROR] Line 18: No source code is available for type
xxx.server.Employee; did you forget to inherit a required module?
[ERROR] Errors in 'file:/C:/XXX/XXX/src/client/Example.java'
[ERROR] Line 325: No source code is available for type
xxx.server.Employee; did you forget to inherit a required module?
[ERROR] Errors in
'file:/C:/XXX/XXX/src/client/GreetingService.java'
[ERROR] Line 19: No source code is available for type
xxx.server.Employee; did you forget to inherit a required module?
Finding entry point classes
[ERROR] Unable to find type 'xxx.client.Example'
[ERROR] Hint: Previous compiler errors may have made this type
unavailable
[ERROR] Hint: Check the inheritance chain from your module; it
may not be inheriting a required module or a module may not be adding its
source path entries properly
--
-Thanks
-Srikanth.G
-Hyderabad
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-Thanks
-Srikanth.G
-Google India Ltd
-Hyderabad
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[appengine-java] Data store low-level API and query filters
Hi, there! Currently there is no possibility to use two inequality filters for data retrieving. I'm storing events with start/end dates. And I want to retrieve events by date range. Currently, I'm retrieving them with query with one filter for start date, so retrieved events are older than start date. If there is a lot of stored events, query takes a time. Is there any possibility to reduce this time? Any suggestions? Best regards, Alexander. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Using JavaMail to send email to multiple recipients
And for completeness, the email-related classes used are:
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
All of which exist in Sun's mail.jar I'm using, which is also in the
classpath BEFORE the AppEngine library (just in case).
The bug remains unfixed.
On Aug 12, 8:10 pm, Rodrigo ipi...@gmail.com wrote:
Well... But I guess my question is:
How do I override AppEngine's implementation of JavaMail so I can use
Sun's??
--
BTW, this is the code I'm using:
/**
* Generic method to send an email
*/
public static void sendEmail(String fromEmail, String fromName,
ListString to, ListString cc, ListString bcc,
String subject, String body) throws
AddressException, MessagingException,
UnsupportedEncodingException
{
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(fromEmail, fromName));
for (String email : to) {
msg.addRecipient(Message.RecipientType.TO,
new InternetAddress(email));
}
for (String email : cc) {
msg.addRecipient(Message.RecipientType.CC,
new InternetAddress(email));
}
for (String email : bcc) {
msg.addRecipient(Message.RecipientType.BCC,
new InternetAddress(email));
}
msg.setSubject(subject);
msg.setText(body);
Transport.send(msg);
}
On Aug 11, 2:02 pm, Nasif Noorudeen nas...@gmail.com wrote:
Hi,
can u specify the code's that you are currntly using, there is something
is missing in your code, the implementaion of sun sample code is fine
Thanks
Nasif
On Mon, Aug 9, 2010 at 3:41 PM, Rodrigo ipi...@gmail.com wrote:
Hi,
I'm trying to send a single email to multiple recipients, but when I
add multiple recipients to a Message, it sends a different copy of the
email to each recipient! I want a single email.
Is there a way to get around this? I read in a previous post that
Sun's implementation of JavaMail didn't have this problem and that we
could override it somehow. How?
I tried downloading a jar from here [1], put it in my classpath and
the war/WEB-INF/lib, but it didn't make any difference. I also got the
source code from Sun, but there's a bunch of classes that are
unsupported by App Engine so I couldn't get it to work either.
Appreciate any help! Thanks,
-Rodrigo
[1]http://download.java.net/maven/2/javax/mail/mail/
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Re: [appengine-java] Bulk loader and JPQL query
Ok. Thank you. I'd like to know how to upload the list, in a way that can be used as ArrayList in java programs. I had specified the type as list in the import transform specification in the bulk loader configuration file and it is uploaded as encoded strings. When I retrieve the list as an Array List in the java program , [u'[', u'1', u'4'] in the datastore viewer is displayed as [[, 1, 4] . Thanks, Deepika On Mon, Aug 9, 2010 at 3:09 PM, Ikai L (Google) ika...@google.com wrote: u'1' means Unicode String 1 On Thu, Aug 5, 2010 at 6:03 PM, Deepika M drift2elys...@gmail.com wrote: My list looks like this in the input csv file (I generated this list usign a Java program)
[appengine-java] Stats are 0ms in AppStats
I always get 0 ms when deployed, anyone know what the issue is? real=848ms cpu=0ms api=0ms overhead=0ms (2 RPCs) -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: DatastoreFailureException: handle 3 not found
I think I might be encountering the same problem. When I run each of the tests individually they pass, but running as part of a test suite, all tests that use Task Queue except the first one fails. I'm using Deferrable tasks (described here http://turbomanage.wordpress.com/2009/11/20/deferred-defer-is-a-thing-of-beauty/), and the first time the code in the second tests tries to add a task to the queue I get a TransactionalTaskException, which contains a DatastoreFailureException with the message handle 1 not found; My test cases extend this class shown at http://pastebin.com/bhuf9FdQ. Perhaps I'm setting up the Local...TestConfig's incorrectly. Brendan On Aug 10, 4:22 am, Jorg jorg.ja...@accorto.com wrote: In the test environment, I have a stability problem with the local data store. When running the tests individually, they are ok, but running them in a test suite results in the error below for many of the tests. I read that the request come too fast, so I built in sleep(1000) between the tests, but that didnotmake a difference. Any suggestions? The error I get: com.google.appengine.api.datastore.DatastoreFailureException:handle3notfound at com.google.appengine.api.datastore.DatastoreApiHelper.translateError(Datast oreApiHelper.java: 51) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(Datastor eApiHelper.java: 67) at com.google.appengine.api.datastore.DatastoreServiceImpl $2.run(DatastoreServiceImpl.java:188) at com.google.appengine.api.datastore.TransactionRunner.runInTransaction(Trans actionRunner.java: 30) at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServic eImpl.java: 176) at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServic eImpl.java: 156) at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServic eImpl.java: 148) at com.accorto.gae.GaeDatastore.save(GaeDatastore.java:471) -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: HELP: My app is getting lots of HardDeadlineExceededError today.
2 Main parts of the application. Font End Display StarCraft 2 Player 1v1 Ladder information from all Regions. Search options: Order by (6 categories) filter by (Region) filter by (Race). -- This is the cause of my exploding index. Display 100 players per page. I have implemented some cache use for this part, so it is not much of an issue currently. Back End (This is the big CPU Hog) Load Player information from battle.net http://us.battle.net/sc2/en/profile/388538/1/HuK/ladder/1794#current-rank This is done by a task that gets the data, parses it and saves any player changes. There is 100 players per page, but usually less than 30 need to be updated each scan. Each save/update takes almost 1 second. .5 seconds with a version that has NO INDEXES. Currently the speed is not an issue, but the cost of CPU time for Datastore operations is. Ideally, I would like to support the almost 1 million players on battle.net like sc2Ranks.com But that would not be practical cost wise using the Datastore. For now, I'm only supporting the top 10K players. Don't get me wrong. I really love GAE. I have created a few small apps that run fine. However, this app is looking like it won't be practical for GAE due to the Datastore? On Aug 13, 1:24 pm, Ikai L (Google) ika...@google.com wrote: Saving 100 entities in a single request, especially if a TON of indexes will be created is very expensive and will cause a lot of CPU to be consumed. There probably is a design that will allow you to accomplish what you need to do without this limitation. Can you post your use case? On Thu, Aug 12, 2010 at 11:02 PM, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Used appstat and didn't notice anything out of the ordinary. Still thinking that the main issue here is exploding index and I'm not sure how to get around that other than to cut search features from the site, but that would more or less make the app not very useful. On Aug 12, 10:19 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Thanks for the response. I wanted to get back to you sooner, but I have been scrambling to optimize the application. I'm making some progress, however, it is still a relative CPU hog due to an exploding index and the frequent updates the application needs to make in order to keep the data current. 71000 CPU to save 100 records seems rather expensive?. My next step is to run appstat on it and see what is going on. Current version of the app is running a sc2pf6.appstat.com. The older version is running at sc2pf2.appspot.com. On Aug 9, 3:51 pm, Ikai L (Google) ika...@google.com wrote: I've got a few questions for you: 1. What is your application ID? 2. What are you doing in the tasks? 3. Are you using transactions or entity groups? 4. Are you writing to the same datastore entities? My guess is that you are running into write contention in the datastore. It'd be very helpful to understand what it is you're doing. App Engine will scale up the number of instances if you are returning web requests in less than 800ms (thought 400ms is optimal), but if you are writing to a small number of entities over and over it won't be able to resolve that bottleneck. On Mon, Aug 9, 2010 at 12:28 PM, SC2PlayerFinder sc2playerfin...@gmail.comwrote: Further explanation. I had a large increase in users which caused a chain reaction. Tasks that used to take about 10-20 seconds started taking longer and using more CPU time. Interestingly, these tasks are doing the exact same thing, but under a higher load, they take longer and use more CPU time. I can understand the process taking longer under load, but why would it use a significant amount more of CPU time? I will admit that my code is not the most optimal, but then again isn't the main focus of GAE built in scalability and speed? In short, I needed on the fly scalability and speed with an influx of new users and I don't feel like I got that with GAE? Worse, there was no way for me to contact someone who could help me out. I'm left with the feeling that GAE does not do a good job of scaling up and it is kind of slow as well. Creating and updating records seems painfully expensive, time out due to new instance creation happens way to often. Now this is fine for a free app, but I'm going way over my daily free quota and it is not cheap. Maybe I should be using Phython and not Java? On Aug 6, 10:52 pm, SC2PlayerFinder sc2playerfin...@gmail.com wrote: Application was running ok yesturday. Still had about 10% HardDeadlineExceededError, but the same task that executed yesturday are not failing almost 100% of the time right now. I even cut back the amount of records it is processing from 100 to 10 and it is still failing. How do I get ahold of someone at
