Hi,
We are using HR datastore for our data needs for our application. We had
some promotions in our app which resulted in a big spike of requests. There
were 25-30 req/sec and all requests were accessing datastore. We also use
memcache as needed. All our datasore reads/writes failed with no clue on
the exceptions.
A simple read from datastore caused this exception. The application was
down for couple of hours because of these errors. This seem to happen under
load. Can anyone in appengine team what's the issue here? Says illegal
argument and invalid handle.
LogUtils error: Error in getting data from datastore
javax.jdo.JDOFatalUserException: Illegal argument
at
org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:344)
at
org.datanucleus.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1676)
at
org.datanucleus.jdo.JDOPersistenceManager.getObjectById(JDOPersistenceManager.java:1767)
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManager.getObjectById(DatastoreJDOPersistenceManager.java:73)
NestedThrowablesStackTrace:
java.lang.IllegalArgumentException: invalid handle: 14104995113016828271
at
com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:33)
at
com.google.appengine.api.datastore.DatastoreApiHelper$1.convertException(DatastoreApiHelper.java:70)
at
com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:94)
at
com.google.appengine.api.datastore.FutureHelper$CumulativeAggregateFuture.get(FutureHelper.java:142)
at
com.google.appengine.api.datastore.FutureHelper$TxnAwareFuture.get(FutureHelper.java:218)
at
com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:86)
at
com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:71)
at
com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:32)
at
com.google.appengine.api.datastore.DatastoreServiceImpl$1.runInternal(DatastoreServiceImpl.java:68)
at
com.google.appengine.api.datastore.DatastoreServiceImpl$1.runInternal(DatastoreServiceImpl.java:65)
at
com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java:29)
at
com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java:65)
at
com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java:55)
at
org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.get(RuntimeExceptionWrappingDatastoreService.java:56)
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