Hi,
In development mode I got the exception below and now i'm unable to
load my database. This is serious as now I cannot load my test
database (with lot's of data) and I have my test environment broken.
Is the DB corrupt?
What can I do to recover the data i have in the database?
What should I do to prevent this from happening again?
Failed to load from the backing store, C:\...\war\WEB-INF\appengine-
generated\local_db.bin
java.io.EOFException
at java.io.ObjectInputStream
$BlockDataInputStream.peekByte(ObjectInputStream.java:2553)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1296)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.ArrayList.readObject(ArrayList.java:593)
at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:
974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1848)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:
974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1848)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:
974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1848)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:
974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1848)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1870)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at
com.google.appengine.api.datastore.dev.LocalDatastoreService.load(LocalDatastoreService.java:
1412)
at
com.google.appengine.api.datastore.dev.LocalDatastoreService.start_(LocalDatastoreService.java:
427)
at com.google.appengine.api.datastore.dev.LocalDatastoreService.access
$300(LocalDatastoreService.java:122)
at com.google.appengine.api.datastore.dev.LocalDatastoreService
$1.run(LocalDatastoreService.java:420)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.appengine.api.datastore.dev.LocalDatastoreService.start(LocalDatastoreService.java:
418)
at
com.google.appengine.tools.development.ApiProxyLocalImpl.startServices(ApiProxyLocalImpl.java:
562)
at com.google.appengine.tools.development.ApiProxyLocalImpl.access
$700(ApiProxyLocalImpl.java:46)
at com.google.appengine.tools.development.ApiProxyLocalImpl
$2.run(ApiProxyLocalImpl.java:544)
at com.google.appengine.tools.development.ApiProxyLocalImpl
$2.run(ApiProxyLocalImpl.java:542)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.appengine.tools.development.ApiProxyLocalImpl.getService(ApiProxyLocalImpl.java:
541)
at
com.google.apphosting.utils.servlet.DatastoreViewerServlet.getSchema(DatastoreViewerServlet.java:
152)
at
com.google.apphosting.utils.servlet.DatastoreViewerServlet.doGetDatastoreViewer(DatastoreViewerServlet.java:
236)
at
com.google.apphosting.utils.servlet.DatastoreViewerServlet.doGet(DatastoreViewerServlet.java:
204)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
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
$CachedChain.doFilter(ServletHandler.java:1166)
at
com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:
35)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
58)
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
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
122)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:
97)
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.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
70)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:351)
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 org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
409)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:582)
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