I'm trying to write a Java serialized HashMap<String,Long> to the
blobstore using the FileService and getting an "Unknown" error 10.
I'm guessing there's 10,000+ items in the map.
Below is the code I'm using, followed by the stack trace.
Can someone clue me in on what I'm doing wrong? And yes, it works
fine in the development environment ;)
Thanks,
Mike
public class Filer
{
private static final FileService fileService =
FileServiceFactory.getFileService();
private static final BlobstoreService blobstoreService =
BlobstoreServiceFactory.getBlobstoreService();
public static String save( Object value )
throws IOException
{
if( value == null ) return null;
AppEngineFile file = fileService.createNewBlobFile(
"text/plain" );
return save( file, value );
}
private static String save( AppEngineFile file, Object value )
throws IOException
{
// Open a channel and write out object
FileWriteChannel writeChannel = fileService.openWriteChannel(
file,
true );
ObjectOutputStream out = new
ObjectOutputStream( Channels.newOutputStream( writeChannel ) );
out.writeObject( value );
// Close it up
out.close();
writeChannel.closeFinally();
return file.getFullPath();
}
And here's the exception...
org.apache.jsp.tasks.create_002duser_002dsegment_jsp _jspService:
Failed to create user segment
java.io.IOException
at
com.google.appengine.api.files.FileServiceImpl.translateException(FileServiceImpl.java:
501)
at
com.google.appengine.api.files.FileServiceImpl.makeSyncCall(FileServiceImpl.java:
479)
at
com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:
426)
at
com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:
171)
at
com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:
49)
at
com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:
41)
at java.nio.channels.Channels.write(Channels.java:80)
at java.nio.channels.Channels.access$000(Channels.java:64)
at java.nio.channels.Channels$1.write(Channels.java:151)
at java.io.ObjectOutputStream
$BlockDataOutputStream.drain(ObjectOutputStream.java:1855)
at java.io.ObjectOutputStream
$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1764)
at
java.io.ObjectOutputStream.writeFatalException(ObjectOutputStream.java:
1558)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:
346)
at com.yumyumlabs.foundation.appengine.util.Filer.save(Filer.java:42)
at com.yumyumlabs.foundation.appengine.util.Filer.save(Filer.java:33)
at
com.yumyumlabs.server.recipe.model.UserSegment.saveUsers(UserSegment.java:
51)
at
org.apache.jsp.tasks.create_002duser_002dsegment_jsp._jspService(create_002duser_002dsegment_jsp.java:
104)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
511)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
390)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at
org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:
213)
at
org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:
171)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:
145)
at
org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:
92)
at
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:
381)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at org.machino.servlet.PageTimerFilter.doFilter(PageTimerFilter.java:
63)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at org.machino.servlet.LoginFilter.doFilter(LoginFilter.java:121)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at org.machino.servlet.RedirectFilter.doFilter(RedirectFilter.java:
53)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:
97)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
35)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
43)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at
com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
249)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
at org.mortbay.jetty.HttpConnection
$RequestHandler.headerComplete(HttpConnection.java:923)
at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
262)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$2.handleRequest(RuntimePb.java:9819)
at com.google.net.rpc.impl.RpcUtil.handleRequest(RpcUtil.java:445)
at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
414)
at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:
579)
at com.google.tracing.TraceContext$TraceContextRunnable
$1.run(TraceContext.java:454)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:
694)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:
332)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:
324)
at com.google.tracing.TraceContext
$TraceContextRunnable.run(TraceContext.java:452)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:
1110)
at java.util.concurrent.ThreadPoolExecutor
$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException:
ApplicationError: 10: Unknown
at com.google.apphosting.runtime.ApiProxyImpl
$AsyncApiFuture.rpcFinished(ApiProxyImpl.java:474)
at com.google.net.rpc.RpcStub$RpcCallbackDispatcher
$1.runInContext(RpcStub.java:1050)
at com.google.tracing.TraceContext$TraceContextRunnable
$1.run(TraceContext.java:454)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:
694)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:
332)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:
324)
at com.google.tracing.TraceContext
$TraceContextRunnable.run(TraceContext.java:452)
at com.google.net.rpc.RpcStub
$RpcCallbackDispatcher.rpcFinished(RpcStub.java:1071)
at com.google.net.rpc.RPC.internalFinish(RPC.java:2240)
at com.google.net.rpc.impl.RpcNetChannel.finishRpc(RpcNetChannel.java:
2338)
at
com.google.net.rpc.impl.RpcNetChannel.messageReceived(RpcNetChannel.java:
1267)
at
com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
328)
at
com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
299)
at com.google.net.async.Connection.handleReadEvent(Connection.java:
474)
at
com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
856)
at
com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
222)
at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
116)
at com.google.net.async.GlobalEventRegistry
$2.runLoop(GlobalEventRegistry.java:95)
at com.google.net.async.LoopingEventDispatcher
$EventDispatcherThread.run(LoopingEventDispatcher.java:385)
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