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我有兩個片段，其中包含這兩個片段，它將執行使用sqlbrite的代碼。雖然應用程序在正常使用情況下不會崩潰，但問題是，如果我在短時間內多次來回加載這兩個片段，則該應用程序會因此錯誤而崩潰。pthread_create失敗：無法分配1064960字節的堆棧：內存不足
E/CursorWindow: Could not allocate CursorWindow '/data/data/com.imincode.meniti/databases/meniti' of size 2097152 due to error -12.
E/CursorWindow: Could not allocate CursorWindow '/data/data/com.imincode.meniti/databases/meniti' of size 2097152 due to error -12.
E/CursorWindow: Could not allocate CursorWindow '/data/data/com.imincode.meniti/databases/meniti' of size 2097152 due to error -12.
W/libc: pthread_create failed: couldn't allocate 1064960-byte stack: Out of memory
W/libc: pthread_create failed: couldn't allocate 1064960-byte stack: Out of memory
W/System.err: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.
W/System.err: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.
W/System.err: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.
E/CursorWindow: Could not allocate CursorWindow '/data/data/com.imincode.meniti/databases/meniti' of size 2097152 due to error -12.
W/System.err: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.
E/CursorWindow: Could not allocate CursorWindow '/data/data/com.imincode.meniti/databases/meniti' of size 2097152 due to error -12.
W/System.err: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.
E/art: Throwing OutOfMemoryError "pthread_create (1040KB stack) failed: Try again"
E/art: Throwing OutOfMemoryError "pthread_create (1040KB stack) failed: Try again"
W/System.err: at at android.database.CursorWindow.<init>(CursorWindow.java:108)
W/System.err: at at android.database.CursorWindow.<init>(CursorWindow.java:108)
W/System.err: at at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
W/System.err: at android.database.CursorWindow.<init>(CursorWindow.java:108)
W/System.err: at at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
W/System.err: at android.database.CursorWindow.<init>(CursorWindow.java:108)
W/System.err: at android.database.CursorWindow.<init>(CursorWindow.java:108)
W/System.err: at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:139)
W/System.err: at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
W/System.err: at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:139)
W/System.err: at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
W/System.err: at com.imincode.meniti.db.DbHelper$6.call(DbHelper.java:438)
W/System.err: at com.imincode.meniti.db.DbHelper$6.call(DbHelper.java:431)
W/System.err: at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:69)
W/System.err: at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.emit(OperatorOnBackpressureLatest.java:165)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.onNext(OperatorOnBackpressureLatest.java:131)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestSubscriber.onNext(OperatorOnBackpressureLatest.java:211)
W/System.err: at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:224)
W/System.err: at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
W/System.err: android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
W/System.err: at at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:139)
W/System.err: at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
W/System.err: at com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:368)
W/System.err: at com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:361)
W/System.err: at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:69)
W/System.err: at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.emit(OperatorOnBackpressureLatest.java:165)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.onNext(OperatorOnBackpressureLatest.java:131)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestSubscriber.onNext(OperatorOnBackpressureLatest.java:211)
W/System.err: at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:224)
W/System.err: at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
W/System.err: at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:139)
W/System.err: at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
W/System.err: at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
W/System.err: at com.imincode.meniti.db.DbHelper$6.call(DbHelper.java:438)
W/System.err: at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
W/System.err: at com.imincode.meniti.db.DbHelper$6.call(DbHelper.java:431)
W/System.err: at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:69)
W/System.err: at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.emit(OperatorOnBackpressureLatest.java:165)
W/System.err: android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:139)
W/System.err: at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
W/System.err: at com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:368)
W/System.err: at com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:361)
W/System.err: at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:69)
W/System.err: at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.emit(OperatorOnBackpressureLatest.java:165)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.onNext(OperatorOnBackpressureLatest.java:131)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestSubscriber.onNext(OperatorOnBackpressureLatest.java:211)
W/System.err: at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:224)
W/System.err: at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
W/System.err: at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.onNext(OperatorOnBackpressureLatest.java:131)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestSubscriber.onNext(OperatorOnBackpressureLatest.java:211)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:368)
W/System.err: at com.imincode.meniti.db.DbHelper$4.call(DbHelper.java:361)
W/System.err: at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:69)
W/System.err: at rx.observers.Subscribers$5.onNext(Subscribers.java:235)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.emit(OperatorOnBackpressureLatest.java:165)
W/System.err: rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:224)
W/System.err: at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
W/System.err: at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestEmitter.onNext(OperatorOnBackpressureLatest.java:131)
W/System.err: at rx.internal.operators.OperatorOnBackpressureLatest$LatestSubscriber.onNext(OperatorOnBackpressureLatest.java:211)
W/System.err: at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.call(OperatorObserveOn.java:224)
W/System.err: at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
W/System.err: at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
W/System.err: rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
W/System.err: at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)
W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
W/System.err: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)
W/libc: pthread_create failed: couldn't allocate 1064960-byte stack: Out of memory
E/art: Throwing OutOfMemoryError "pthread_create (1040KB stack) failed: Try again"
W/libc: pthread_create failed: couldn't allocate 1064960-byte stack: Out of memory
E/art: Throwing OutOfMemoryError "pthread_create (1040KB stack) failed: Try again"
其中一個片段的具有約50可觀察其然後使用Observable.combineLatest組合。以下是片段的代碼片段（其他片段具有類似的代碼）。下面是我的代碼的簡化版本。
public class MenuSummary extends Fragment{
private DbHelper dbHelper;
private Observable<?> incomeFromParentJar, getIncomeNecessities, getIncomeSavings, getIncomeEntertainment, getIncomeInvestment, getIncomeEducation, getIncomeCharity;
private Observable<?> getExpensesNecessities, getExpensesSavings, getExpensesEntertainment, getExpensesInvestment, getExpensesEducation, getExpensesCharity;
private Observable<?> getTotalUnpaidMonthlyRecurringExpensesNecessities, getTotalUnpaidMonthlyRecurringExpensesSavings;
private Observable imin;
private Subscription s;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
dbHelper = new DbHelper(getContext());
}
@Override
public void onPause(){
super.onPause();
dbHelper.close();
s.unsubscribe();
}
@Override
public void onResume(){
super.onResume();
displaySummary(selectedYear,selectedMonth);
}
@Override
public void onStop() {
super.onStop();
}
@Override
public void onActivityCreated(Bundle savedInstanceState){
super.onActivityCreated(savedInstanceState);
}
private void displaySummary(final int selectedYear, final int selectedMonth){
incomeFromParentJar = dbHelper.getParentJarIncomeUpTo(selectedYear,selectedMonth);
getIncomeNecessities = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_NECESSITIES);
getIncomeSavings = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_SAVINGS);
getIncomeEntertainment = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_ENTERTAINMENT);
getIncomeInvestment = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_INVESTMENT);
getIncomeEducation = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_EDUCATION);
getIncomeCharity = dbHelper.getIndividualJarIncomeUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_CHARITY);
getExpensesNecessities = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_NECESSITIES);
getExpensesSavings = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_SAVINGS);
getExpensesEntertainment = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_ENTERTAINMENT);
getExpensesInvestment = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_INVESTMENT);
getExpensesEducation = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_EDUCATION);
getExpensesCharity = dbHelper.getJarExpensesUpTo(selectedYear,selectedMonth,MySQLiteHelper.JAR_CHARITY);
List<Observable<?>> myObservables = Arrays.asList(incomeFromParentJar,getIncomeNecessities,getIncomeSavings,getIncomeEntertainment, getIncomeInvestment,getIncomeEducation,getIncomeCharity,getExpensesNecessities,getExpensesSavings,getExpensesEntertainment,getExpensesInvestment, getExpensesEducation,getExpensesCharity);
imin = Observable.combineLatest(myObservables, new FuncN<List<BigDecimal>>() {
@Override
public List<BigDecimal> call(Object... args) {
BigDecimal incomeTotal, incomeNecessities, incomeSavings, incomeEntertainment;
BigDecimal incomeInvestment, incomeEducation, incomeCharity;
List<BigDecimal> incomeFromParentJar = (List<BigDecimal>) args[0];
List<BigDecimal> expensesAndBalance = new ArrayList<BigDecimal>();
incomeTotal = incomeFromParentJar.get(0);
incomeNecessities = incomeFromParentJar.get(1);
incomeSavings = incomeFromParentJar.get(2);
incomeEntertainment = incomeFromParentJar.get(3);
incomeInvestment = incomeFromParentJar.get(4);
incomeEducation = incomeFromParentJar.get(5);
incomeCharity = incomeFromParentJar.get(6);
incomeNecessities = incomeNecessities.add((BigDecimal) args[1]);
.....
.....
.....
}
}
).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread());
s = imin.subscribe(new Action1<List<BigDecimal>>() {
@Override
public void call(List<BigDecimal> expensesAndBalance) {
//do plenty of view.settext here
}});
}
下面是DbHelper類的外觀。請注意，我只顯示其中一個被調用函數的代碼..其他函數幾乎相同（除了查詢當然）..
任何人都可以查明我哪裏出錯了？
public class DbHelper {
private MySQLiteHelper mySQLiteHelper;
SqlBrite sqlBrite = new SqlBrite.Builder().build();
BriteDatabase briteDb;
Subscription subscription;
private static DbHelper instance;
public DbHelper(Context context) {
mySQLiteHelper = new MySQLiteHelper(context);
sqlBrite = new SqlBrite.Builder().build();
}
public Observable<BigDecimal> getIndividualJarIncomeUpTo(final int endYear, final int endMonth, final int moneyJar){
briteDb = sqlBrite.wrapDatabaseHelper(mySQLiteHelper,Schedulers.io());
final String[] args = new String[]{moneyJar + "", endYear + "", endMonth + "", endYear + "", };
Observable<BigDecimal> myObservable;
myObservable = briteDb.createQuery(MySQLiteHelper.TABLE_INCOME, "SELECT total FROM " + MySQLiteHelper.TABLE_INCOME +
" WHERE moneyJar = ? AND ((year = ? AND month <= ?) OR (year < ?)) and isDeleted = 0", args)
.map(new Func1<SqlBrite.Query, BigDecimal>() {
@Override
public BigDecimal call(SqlBrite.Query query) {
Cursor cursor = query.run();
BigDecimal income, incomeTotal = new BigDecimal(0);
if (cursor != null) {
try {
if (cursor.getCount() > 0 && cursor.moveToFirst()) {
do {
income = new BigDecimal(cursor.getString(cursor.getColumnIndex("total")));
incomeTotal = incomeTotal.add(income);
} while (cursor.moveToNext());
}
} catch (Exception e) {
e.printStackTrace();
} finally {
cursor.close();
}
if (moneyJar == 1) {
Log.v(FILE_NAME, "imini " + endYear + " " + endMonth + " incomeTotal: " + incomeTotal);
}
}
return incomeTotal;
}
});
return myObservable;
}
public void close(){
if (briteDb != null) {
briteDb.close();
}
}
}
看起來像一般的android遊標/內存問題，我會建議確保所有遊標都正確關閉，儘管代碼似乎很好（可能取消訂閱不處理遊標關閉權限？），您應該嘗試使用StrictMode跟蹤打開的遊標。除此之外它可能是一個普遍的內存不足問題，請嘗試確定進程大小以查看它是否有關聯。 – yosriz
@yosriz。當我啓用嚴格模式時，當方向更改時，應用程序會崩潰，並顯示一些打開的遊標未關閉的消息。正如你所看到的，我已經在最後添加了cursor.close（）。我不知道我知道任何其他方法來關閉遊標。 – imin
爲了確保達到cursor.close（），我在調試中運行應用程序，並在所有cursor.close（）中放置制動點，並且達到所有制動點。 – imin