[appengine-java] Re: RESTfull - JAX-RS and GAE/J
Have you put the three .jar files in war\WEB-INF\lib too? It can't find the base Servlet for Resteasy. I don't think there's a huge benefit of trying to implement a standard that is already done by Jersey, Resteasy, Restlet and Apache Wink, which already provides a useful set of choices. My issue with JAX-RS and Guice together has been initialization time - in the 6 - 10 second region, with JPA and a templating framework, rather than the lengthy times suggested with other types of web framework. In particular, I switch off all class path scanning for Resource and Providers in Jersey. In fact looking at the documentation for Resteasy, their property of resteasy.scan = false seems quite good in this regard. So I might consider moving over to Resteasy. And many of the JAX-RS implementations add GZIP and Etag type plugins that help create elegant REST applications. Which would take time with a custom implementation. Andy On Jan 16, 10:19 pm, ChrisDane gregersen@gmail.com wrote: Thanks Jeff, Thanks, I am just trying to set it up: 1) Downloaded the latest(1.2.1.GA) 2) In Eclipse created a new GAE Project 3) I have been looking in the book RESTful Java with JAX-RS, 1st Edition - found the sample code for oreilly-workbook/ex03_1 4) Copied the ( Customer.java CustomerResource.java ShoppingApplication.java ) classes to my new GAE project. 5) Added to Class Path: serverlet-api-2.5.jar webserver-1.3.3.jar jsr311-api-1.1.jar 6) Changed the web.xml serverlet to : web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xmlns=http://java.sun.com/xml/ns/javaee; xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; xsi:schemaLocation=http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5 display-nameArchetype Created Web Application/display-name servlet servlet-nameResteasy/servlet-name servlet- classorg.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher/ servlet-class init-param param-namejavax.ws.rs.Application/param-name param- valuecom.restfully.shop.services.ShoppingApplication/param-value /init-param /servlet servlet-mapping servlet-nameResteasy/servlet-name url-pattern/*/url-pattern /servlet-mapping welcome-file-list welcome-fileindex.html/welcome-file /welcome-file-list /web-app 7) And I am getting an Error: .. com.google.apphosting.utils.jetty.JettyLogger warn WARNING: EXCEPTION java.lang.ClassNotFoundException: org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher . Can you point out anything in my steps that I am doing wrong? Lastly, would I loos anything if I figured out to implement my own javax.ws.rs.Application? Thanks again Regards ChrisDane On Jan 16, 10:23 pm, Jeff Schnitzer j...@infohazard.org wrote: JBoss Resteasy works fine without any special customization for GAE. I use it extensively. http://www.jboss.org/resteasy Jeff On Sat, Jan 16, 2010 at 1:09 PM, ChrisDane gregersen@gmail.com wrote: Hi there, Has anyone seen any examples on using only JAX-RS on GAE. Implementing the javax.ws.rs.core.Application and A resource Class etc? Thanks in advance Regards ChrisDane -- 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 athttp://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.
[appengine-java] Re: Can an Integer be a primary key for JDO?
Thank you. This was the information I needed. Data reduction was no goal, i just needed a numeric key. On Jan 16, 10:03 pm, Jeff Schnitzer j...@infohazard.org wrote: I don't know what JDO will do, but I can tell you that this won't help you reduce data storage requirements, if that is your goal. Some things to know about the Low-Level API, and thus any layer on top (JDO, JPA, Objectify, Twig, whatever): * Numeric keys will be persisted as a Long (or String). * All numeric property values get persisted as a Long (even if they get converted back to something smaller by the library). JeffOn Sat, Jan 16, 2010 at 5:59 AM, Bert Peters bert.ljpet...@gmail.com wrote: Thank you for that information, but that's not what i meant. What i did mean is whether this is correct/possible: @PrimaryKey @Persistent(idGeneratorStrategy=INCREMENT) private Integer id; On Jan 16, 2:25 pm, jd jdpatter...@gmail.com wrote: Keys can either have a system generated long id (not set by you) or a String name. There used to be no way to create an Entity with a long - but now (as of 1.2.7?) there is a constructor Entity(Key) and you can create a key with a long. But the docs say: Creating an entity for the purpose of insertion (as opposed to update) with a key that has its id field set is strongly discouraged unless the key was returned by a KeyRange. So basically the answer is still no. Twig gets around this by converting whatever field you declare as a @Key into a String and back again - even Integers. On Jan 16, 7:02 pm, Bert Peters bert.ljpet...@gmail.com wrote: I was just wondering whether I could use an Integer for a primary key in JDO, as it would be a great convenience in my application. I couldn't really find an answer to this in the documentation, so I ask you. Can I? -- 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 athttp://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.
[appengine-java] Memcache data life cycle
Hi GAE gurus, Is there anyone who can tell me the life-cycle of data cached in memcache? I found those cached in memcache won't be expired even I re-deploy my project. Does that means I can use it like a datastore without transaction support? Best regards, Max -- 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] Memcache data life cycle
On Sun, Jan 17, 2010 at 19:04, Max thebb...@gmail.com wrote: Hi GAE gurus, Is there anyone who can tell me the life-cycle of data cached in memcache? I found those cached in memcache won't be expired even I re-deploy my project. Does that means I can use it like a datastore without transaction support? Best regards, Max No, you can't use it as a datastore, it is only a cache as the name suggests, even if you set the cache entries to never expire, it might end up being replaced when the underlying system thinks necessary. -- Joe -- Two things that are infinite, the universe and my stupidity, and I'm not sure about the universe. -- 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] AppEngine returns SUCCESS status even if it fails to process Chat Msg
Hi, I have noticed that sometimes AppEngine fails to process some Chat Msgs (requests), especially when it receives a (Chat Msg) request after a long gap (5 min in my case) or when request rate is high, showing following error in logs and returns status SUCCESS. W01-17 03:19AM 26.384 Request was aborted after waiting too long to attempt to service your request. Most likely, this indicates that you have reached your simultaneous dynamic request limit. This is almost always due to excessively high latency in your app. Please see http://code.google.com/appengine/docs/quotas.html for more details. I have also checked that AppEngine doesn't reprocesses those failed Chat Msgs (requests) as it does for failed inbound mails. If it not reprocessing the failed request then why it returns status SUCCESS ? I remember, earlier AppEngine used to reprocess failed Chat Msgs also, why it doesn't now? Has it stopped reprocessing failed inbound mails also?? -- Prashant -- 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] Serious datastore problem
I can't find way to report serious problem.
We have uploaded real customer data and there is bug in datastore
results.
But I can't find way to send screenshots and queries that will not be
seem by everyone.
I can't show customer emails or IDs.
In short problem is that when I do following query (I have changed IDs
and table names)
SELECT * FROM Table1 WHERE ctime = DATETIME('2009-12-01 00:00:00')
ORDER BY ctime
key - is key
cid - is indexed long
ctime - is indexed date
first 2 lines are
cid:1234cid:2009-12-01 00:00:37
cid:2345ctime:2009-12-01 00:01:11
when I filter it to show cis=2345 only
SELECT * FROM Table1 WHERE cid= 2345 and ctime = DATETIME('2009-12-01
00:00:00') ORDER BY ctime
first 2 lines are
cid:2345ctime:2009-12-01 00:03:26
cid:2345ctime:2009-12-01 00:15:09
I expected to see cid:2345 ctime:2009-12-01 00:01:11 as first line
in second query.
But it is missing.
We have uploaded 5,426,307 entities (9 GBytes) data to datastore and
our report for December 2009 till now showed that
countMissing = 28253
countExists = 17555
How can I contact you privately? This data is stored on paid account.
Thanks, Max
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[appengine-java] Re: App Engine cold starts and overly aggressive cycling
Mine happens at pretty random rates too - What is your application ID? footbattle - How do you know it is being cycled out? You'll need to insert some code that only gets called when the app cold starts. Random Request was aborted after waiting too long to attempt to service your request. with about 10s and 0s cpu all over the day, and when it happens, it keeps happening at high rates for a couple minutes. I know that happens at a 100% rate after I upload a new version, but it happens at random during the day too, and a lot. (I don't know if that is a cold start or not, but the symptoms look the same) - How much time of inactivity does it take before your application is cycled out? Less than one second to a couple seconds, I have more than 400.000 requests a day with about 800 active users, at the requests per second chart, the lowest it gets is about 3-4 requests per second. - What frameworks or libraries are you loading? None, just a light-weight home-made one, and we use the low-level API to avoid performance losses. On Jan 16, 7:44 am, Jorge athenas...@gmail.com wrote: - What is your application ID? wcondominios - How do you know it is being cycled out? You'll need to insert some code that only gets called when the app cold starts. I just see incredibly long response times. This, for instance: # 01-16 04:29AM 02.107 / 302 4752ms 6718cpu_ms 126api_cpu_ms 0kb Mozilla/ 5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.38 Safari/532.0,gzip(gfe) See details While the usual, once the app is warm is more like this: # 01-16 04:30AM 20.341 / 302 183ms 191cpu_ms 95api_cpu_ms 0kb Mozilla/ 5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.38 Safari/532.0,gzip(gfe) See details - How much time of inactivity does it take before your application is cycled out? Very random, from a few seconds to a few hours. - What time or days does this seem to happen? Random - What frameworks or libraries are you loading? None. Plain JSPs and Servlets Hope this helps. This is one of the major concerns i have after having adopted GAE to host this app. I see this as an issue in the current preview GAE and I am confident it will be solved some time soon. Thanks, Jorge Gonzalez On Jan 15, 5:32 pm, Ikai Lan i...@google.com wrote: Hey everybody, We've been seeing more and more reports of applications being cycled out overly aggressively, resulting in some folks implementing (discouraged) workarounds to keep their application from being cycled out. The primary symptom of this problem is that your application will see lots of loading requests that fire up a new JVM, which, as many of you know can take anywhere from a few seconds with naked servlets to as much as twenty seconds when loading something like Spring MVC, JRuby on Rails or Grails. In theory, there is enough capacity such that as long as you get some traffic every few hours, you should not be getting cycled out, but we have been seeing reports of applications being cycled after only a minute or less. To help us figure out if these are app specific issues or App Engine issues, can you post the following information if you believe this is happening to you? - What is your application ID? - How do you know it is being cycled out? You'll need to insert some code that only gets called when the app cold starts. - How much time of inactivity does it take before your application is cycled out? - What time or days does this seem to happen? - What frameworks or libraries are you loading? Any other information you can provide would be helpful. -- Ikai Lan Developer Programs Engineer, Google App Engine -- 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: String as Primary key in JDO
Thanks Chau Huynh Regards Sahil On Jan 17, 12:32 pm, Chau Huynh cmhu...@gmail.com wrote: Queries must go with indexes (http://code.google.com/appengine/docs/java/datastore/queriesandindexe...) For the column, you can store it as lowercase/uppercase, For the display column, you can store the original value. On Sun, Jan 17, 2010 at 2:15 PM, Sahil Mahajan sahilm2...@gmail.com wrote: Isn't there any other way. I want to avoid toLowerCase(). I want String to be case insensitive for database, but while displaying String to user I would like it to conserve case.. I can compare strings through equalsIgnoreCase. But then I won't be able to make effective use of primary key. On Jan 17, 11:34 am, jd jdpatter...@gmail.com wrote: Just String#toLowerCase() the key when you store them On Jan 17, 1:11 am, sahil mahajan sahilm2...@gmail.com wrote: I am using String as primary key in JDO. But it is case sensitive. It considers name and NAME as different. Can I make it case sensitive? -- Regards Sahil Mahajan -- 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.
[appengine-java] Re: RESTfull - JAX-RS and GAE/J
Thanks Andy, I Just got it working, by adding alle the jar files from the 1.2.1.GA lib folder into my WAR/WEB-INF/lib... Question is do you need alle the jar files in order to make it work? /Christian org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher On Jan 17, 11:05 am, andy.booth andy.booth...@googlemail.com wrote: Have you put the three .jar files in war\WEB-INF\lib too? It can't find the base Servlet for Resteasy. I don't think there's a huge benefit of trying to implement a standard that is already done by Jersey, Resteasy, Restlet and Apache Wink, which already provides a useful set of choices. My issue with JAX-RS and Guice together has been initialization time - in the 6 - 10 second region, with JPA and a templating framework, rather than the lengthy times suggested with other types of web framework. In particular, I switch off all class path scanning for Resource and Providers in Jersey. In fact looking at the documentation for Resteasy, their property of resteasy.scan = false seems quite good in this regard. So I might consider moving over to Resteasy. And many of the JAX-RS implementations add GZIP and Etag type plugins that help create elegant REST applications. Which would take time with a custom implementation. Andy On Jan 16, 10:19 pm, ChrisDane gregersen@gmail.com wrote: Thanks Jeff, Thanks, I am just trying to set it up: 1) Downloaded the latest(1.2.1.GA) 2) In Eclipse created a new GAE Project 3) I have been looking in the book RESTful Java with JAX-RS, 1st Edition - found the sample code for oreilly-workbook/ex03_1 4) Copied the ( Customer.java CustomerResource.java ShoppingApplication.java ) classes to my new GAE project. 5) Added to Class Path: serverlet-api-2.5.jar webserver-1.3.3.jar jsr311-api-1.1.jar 6) Changed the web.xml serverlet to : web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xmlns=http://java.sun.com/xml/ns/javaee; xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; xsi:schemaLocation=http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/we...; version=2.5 display-nameArchetype Created Web Application/display-name servlet servlet-nameResteasy/servlet-name servlet- classorg.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher/ servlet-class init-param param-namejavax.ws.rs.Application/param-name param- valuecom.restfully.shop.services.ShoppingApplication/param-value /init-param /servlet servlet-mapping servlet-nameResteasy/servlet-name url-pattern/*/url-pattern /servlet-mapping welcome-file-list welcome-fileindex.html/welcome-file /welcome-file-list /web-app 7) And I am getting an Error: .. com.google.apphosting.utils.jetty.JettyLogger warn WARNING: EXCEPTION java.lang.ClassNotFoundException: org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher . Can you point out anything in my steps that I am doing wrong? Lastly, would I loos anything if I figured out to implement my own javax.ws.rs.Application? Thanks again Regards ChrisDane On Jan 16, 10:23 pm, Jeff Schnitzer j...@infohazard.org wrote: JBoss Resteasy works fine without any special customization for GAE. I use it extensively. http://www.jboss.org/resteasy Jeff On Sat, Jan 16, 2010 at 1:09 PM, ChrisDane gregersen@gmail.com wrote: Hi there, Has anyone seen any examples on using only JAX-RS on GAE. Implementing the javax.ws.rs.core.Application and A resource Class etc? Thanks in advance Regards ChrisDane -- 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 athttp://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.
[appengine-java] Order of index propertis
I have a query that is throwing an exception (occasionally) due to the order of properties in an index. the query is like: closed = false AND blocks = x ORDER BY popularity An exception is thrown on the local datastore: Query ??? requires the following index: datastore-index kind=H ancestor=false source=manual property name=blocks direction=asc/ property name=closed direction=asc/ property name=popularity direction=desc/ /datastore-index But I have the following index datastore-index kind=H ancestor=false source=manual property name=closed direction=asc / property name=blocks direction=asc / property name=popularity direction=desc / /datastore-index Surely that should be OK? I haven't tried this on the datastore as it takes a long time to build the indexes but should the current index work there? Thanks, JD -- 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: RESTfull - JAX-RS and GAE/J
No, not all the jars. It depends on what you're trying to do and which providers you intend to use. Read the comments in the maven pom.xml. I use the jackson provider. It requires the jackson jars, the jackson-jaxrs jar, the jackson-resteasy-provider jar, resteasy-jaxrs, jaxrs-api, and if you're using scanning, the scannotation and javassist jars. Jeff On Sun, Jan 17, 2010 at 10:27 AM, ChrisDane gregersen@gmail.com wrote: Thanks Andy, I Just got it working, by adding alle the jar files from the 1.2.1.GA lib folder into my WAR/WEB-INF/lib... Question is do you need alle the jar files in order to make it work? /Christian org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher On Jan 17, 11:05 am, andy.booth andy.booth...@googlemail.com wrote: Have you put the three .jar files in war\WEB-INF\lib too? It can't find the base Servlet for Resteasy. I don't think there's a huge benefit of trying to implement a standard that is already done by Jersey, Resteasy, Restlet and Apache Wink, which already provides a useful set of choices. My issue with JAX-RS and Guice together has been initialization time - in the 6 - 10 second region, with JPA and a templating framework, rather than the lengthy times suggested with other types of web framework. In particular, I switch off all class path scanning for Resource and Providers in Jersey. In fact looking at the documentation for Resteasy, their property of resteasy.scan = false seems quite good in this regard. So I might consider moving over to Resteasy. And many of the JAX-RS implementations add GZIP and Etag type plugins that help create elegant REST applications. Which would take time with a custom implementation. Andy On Jan 16, 10:19 pm, ChrisDane gregersen@gmail.com wrote: Thanks Jeff, Thanks, I am just trying to set it up: 1) Downloaded the latest(1.2.1.GA) 2) In Eclipse created a new GAE Project 3) I have been looking in the book RESTful Java with JAX-RS, 1st Edition - found the sample code for oreilly-workbook/ex03_1 4) Copied the ( Customer.java CustomerResource.java ShoppingApplication.java ) classes to my new GAE project. 5) Added to Class Path: serverlet-api-2.5.jar webserver-1.3.3.jar jsr311-api-1.1.jar 6) Changed the web.xml serverlet to : web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xmlns=http://java.sun.com/xml/ns/javaee; xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; xsi:schemaLocation=http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/we...; version=2.5 display-nameArchetype Created Web Application/display-name servlet servlet-nameResteasy/servlet-name servlet- classorg.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher/ servlet-class init-param param-namejavax.ws.rs.Application/param-name param- valuecom.restfully.shop.services.ShoppingApplication/param-value /init-param /servlet servlet-mapping servlet-nameResteasy/servlet-name url-pattern/*/url-pattern /servlet-mapping welcome-file-list welcome-fileindex.html/welcome-file /welcome-file-list /web-app 7) And I am getting an Error: .. com.google.apphosting.utils.jetty.JettyLogger warn WARNING: EXCEPTION java.lang.ClassNotFoundException: org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher . Can you point out anything in my steps that I am doing wrong? Lastly, would I loos anything if I figured out to implement my own javax.ws.rs.Application? Thanks again Regards ChrisDane On Jan 16, 10:23 pm, Jeff Schnitzer j...@infohazard.org wrote: JBoss Resteasy works fine without any special customization for GAE. I use it extensively. http://www.jboss.org/resteasy Jeff On Sat, Jan 16, 2010 at 1:09 PM, ChrisDane gregersen@gmail.com wrote: Hi there, Has anyone seen any examples on using only JAX-RS on GAE. Implementing the javax.ws.rs.core.Application and A resource Class etc? Thanks in advance Regards ChrisDane -- 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 athttp://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
[appengine-java] Memcache question
Is there a way to code Memcache that would notify when particular entry is about to expire so i can store it in DB? 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-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] Declarative Security with auth-constraint problems for role-name *
I am trying to use declarative security in my web.xml file to require a google login to access my web pages. I allow role-name * and role- name admin. I placed a portion of the file below. When I access a web page music.jsp, I get prompted for my login. I am (admin) role, it works perfectly. However if my wife accesses music.jsp web page, she gets prompted for login but then gets Error Forbidden Your client does not have permission to get URL /music.jsp from this service. Any ideas? security-constraint web-resource-collection web-resource-namecontrolAccess/web-resource-name url-pattern/*/url-pattern /web-resource-collection web-resource-collection web-resource-namecontrolJspAccess/web-resource-name url-pattern/*.jsp/url-pattern /web-resource-collection web-resource-collection web-resource-namecontrolControllerServletAccess/web-resource- name url-pattern/ControllerServlet/url-pattern /web-resource-collection auth-constraint role-name*/role-name role-nameadmin/role-name /auth-constraint /security-constraint Thank you Dave -- 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] adapter4appengine - java.lang.NoClassDefFoundError
Hi, Hope someone can help me to get this Gilead adapter4appengine to work. I keep getting java.lang.NoClassDefFoundError when running my app. I'm using the adapter4appengine-1.0M3, inherited it in the project.gwt.xml. I also tried the SampleAppEngine.JDO application which seems to work fine. I compared this project file by file with my own project but can't find any relevant differences. Compiling my app is no problem. Anyone who had this experience as well? Hope someone can help me out. Thanks -- Initializing AppEngine server 16-jan-2010 17:57:18 com.google.apphosting.utils.jetty.JettyLogger warn WARNING: failed shoppingsServiceServlet java.lang.NoClassDefFoundError: net/sf/gilead/adapter4appengine/ EngineRemoteService at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass (IsolatedAppClassLoader.java:151) at java.lang.ClassLoader.loadClass(Unknown Source) at org.mortbay.util.Loader.loadClass(Loader.java:91) at org.mortbay.util.Loader.loadClass(Loader.java:71) at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73) at org.mortbay.jetty.servlet.ServletHolder.doStart (ServletHolder.java: 233) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:612) at org.mortbay.jetty.servlet.Context.startContext(Context.java: 139) at org.mortbay.jetty.webapp.WebAppContext.startContext (WebAppContext.java:1218) at org.mortbay.jetty.handler.ContextHandler.doStart (ContextHandler.java:500) at org.mortbay.jetty.webapp.WebAppContext.doStart (WebAppContext.java: 448) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at org.mortbay.jetty.handler.HandlerWrapper.doStart (HandlerWrapper.java:117) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at org.mortbay.jetty.handler.HandlerWrapper.doStart (HandlerWrapper.java:117) at org.mortbay.jetty.Server.doStart(Server.java:217) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java:188) at com.google.appengine.tools.development.AbstractContainerService.startup (AbstractContainerService.java:120) at com.google.appengine.tools.development.DevAppServerImpl.start (DevAppServerImpl.java:217) at com.google.appengine.tools.development.gwt.AppEngineLauncher.start (AppEngineLauncher.java:86) at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java: 377) at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java: 938) at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:690) at com.google.gwt.dev.DevMode.main(DevMode.java:251) Caused by: java.lang.ClassNotFoundException: net.sf.gilead.adapter4appengine.EngineRemoteService at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass (IsolatedAppClassLoader.java:151) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) ... 35 more And many more of the same errors. -- 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] App Engine cold starts and overly aggressive cycling
I have had a similar issue since launch :- http://ph-tryout.appspot.com/ GAE/J spawns a second servlet container too early. At least too early for the servlet spec. I wrote about it on my blog :- http://paulhammant.com/blog/appengines-blind-spot.html This is only very simple listeners, filters and servlets. There's no framework or data usage of any kind. The dollar cost of apps being initialized more than they need to has always concerned me though. This could account for some 'aggressive cycle' situations. Or it could be confusable with them. Ikai - see ticket #412136278 from March of last year. Source for the app should be attached to that ticket. - Paul On Jan 15, 2010, at 5:32 PM, Ikai Lan wrote: Hey everybody, We've been seeing more and more reports of applications being cycled out overly aggressively, resulting in some folks implementing (discouraged) workarounds to keep their application from being cycled out. The primary symptom of this problem is that your application will see lots of loading requests that fire up a new JVM, which, as many of you know can take anywhere from a few seconds with naked servlets to as much as twenty seconds when loading something like Spring MVC, JRuby on Rails or Grails. In theory, there is enough capacity such that as long as you get some traffic every few hours, you should not be getting cycled out, but we have been seeing reports of applications being cycled after only a minute or less. To help us figure out if these are app specific issues or App Engine issues, can you post the following information if you believe this is happening to you? - What is your application ID? - How do you know it is being cycled out? You'll need to insert some code that only gets called when the app cold starts. - How much time of inactivity does it take before your application is cycled out? - What time or days does this seem to happen? - What frameworks or libraries are you loading? Any other information you can provide would be helpful. -- Ikai Lan Developer Programs Engineer, Google App Engine -- 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. -- 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] The error occurs by registering QueueName again.
Hi, Server Error (500) occurs as follows. Is there a workaround or something 1.queue.xml to upload my app the following file. queue-entries queue namedefault/name rate1/s/rate /queue queue namedeleteTasks/name rate10/s/rate bucket-size10/bucket-size /queue /queue-entries 2.queue.xml to upload my app the following file. queue-entries queue namedefault/name rate1/s/rate /queue /queue-entries 3.[deleteTasks] to Delete Queue the admin console. (Before deleting the state deleteTasks on admin console) Maximum:[paused] RateBucketSize:[paused] TaskskinQueueRun:[blank] in Last Minute:[0] 4.First used queue.xml to upload my app the following file. queue-entries queue namedefault/name rate1/s/rate /queue queue namedeleteTasks/name rate10/s/rate bucket-size10/bucket-size /queue /queue-entries The following errors occur at deploy. [Error Details](eclipse deplydialog) Unable to update app: Error posting to URL: http://appengine.google.com/api/queue/update?app_id=xxxversion=xxx; 500 Internal Server Error Server Error (500) A server error has occurred. See the deployment console for more details Unable to update app: Error posting to URL: http://appengine.google.com/api/queue/update?app_id=xxxversion=xxx; 500 Internal Server Error Server Error (500) A server error has occurred. [Error Details](eclipse appengine-deployXXX.log) Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.ServerConnection.send (ServerConnection.java:143) at com.google.appengine.tools.admin.ServerConnection.post (ServerConnection.java:81) at com.google.appengine.tools.admin.AppVersionUpload.send (AppVersionUpload.java:522) at com.google.appengine.tools.admin.AppVersionUpload.updateQueue (AppVersionUpload.java:255) at com.google.appengine.tools.admin.AppVersionUpload.doUpload (AppVersionUpload.java:134) at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:56) at com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy (AppEngineBridgeImpl.java:271) at com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace (DeployProjectJob.java:148) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run (InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) 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-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.
