Android Room 数据库出现几种不同的崩溃 - 不知道为什么

Question

Android Room 数据库出现几种不同的崩溃 - 不知道为什么

das*_*ima 5 android android-cursor android-room android-livedata

我们最近在使用 Android 的 Room 数据库时遇到了一些问题。

崩溃只发生在某些用户身上，但我无法在我的测试设备或模拟器上重现它。（这有时也会发生在 Firebase 测试设备上）

有一些例外似乎都是相关的。

所有这些异常都发生在我们由 Room 生成的 Dao 的不同行中。

（无论是查询、插入、更新还是删除）。

CursorWindowAllocationException: Cursor window allocation of 2048 kb failed.

IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase: ‘/whatever/database’

SQLiteDiskIOException: disk I/O error (code 266)

SQLiteDiskIOException: disk I/O error (code 778)

SQLiteDatabaseCorruptException: file is encrypted or is not a database (code 26)

SQLiteException: Failed to change locale for db ‘/whatever/database' to 'fr_FR'.

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我试过的：

带有 'detectLeakedClosableObjects()' 的 StrictMode
增加光标的WindowSize
将几乎所有数据库调用移动到顺序执行器（除 LiveData 的查询实现之外的所有）

这些方法都没有帮助，错误仍然存在。

该LiveData的查询是唯一一个这是不卸载默认的数据库执行者，因为我无法找到一个方法来做到这一点。我怀疑这可能是问题所在，但我不完全确定。

这是 LiveData 查询

@Query("SELECT * FROM alarms WHERE deleted =0 ORDER BY isActive DESC, hourOfDay, minuteOfHour")
LiveData<List<Alarm>> getLiveAlarmList();

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异常示例：

Fatal Exception: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed. 
       at android.database.CursorWindow.(CursorWindow.java:108)
       at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:198)
       at android.database.sqlite.SQLiteCursor.clearOrCreateWindow(SQLiteCursor.java:300)
       at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:138)
       at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:132)
       at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:219)
       at android.database.AbstractCursor.moveToNext(AbstractCursor.java:268)
       at android.arch.persistence.room.InvalidationTracker$1.checkUpdatedTable(SourceFile:358)
       at android.arch.persistence.room.InvalidationTracker$1.run(SourceFile:329)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:762)

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这个似乎源自 Room 的 LiveData InvalidationTracker 类。

Fatal Exception: android.database.CursorWindowAllocationException: Cursor window allocation of 2048 kb failed. # Open Cursors=1 (# cursors opened by this proc=1)
        at android.database.CursorWindow.(CursorWindow.java:108)
        at android.database.AbstractWindowedCursor.clearOrCreateWindow(AbstractWindowedCursor.java:225)
        at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:149)
        at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:143)
        at com.sofaking.moonworshipper.database.room.AlarmDao_Impl.getAllAlarms(SourceFile:458)
        at com.sofaking.moonworshipper.database.AlarmHelper.getAllAlarms(SourceFile:29)
        at com.sofaking.moonworshipper.registration.DefaultAlarmRegistrationImpl.onCancelPendingAlarms(SourceFile:36)
        at com.sofaking.moonworshipper.registration.BaseAlarmRegistrationImpl$start$runnable$1.run(SourceFile:26)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:761)

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虽然这个来自查询“所有警报”的服务。请注意，'AlarmDao_Impl.getAllAlarms' 是由 Room 生成的，并且在完成后确实关闭了光标。

Fatal Exception: android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 266)
       at android.database.sqlite.SQLiteConnection.nativeExecuteForCursorWindow(SQLiteConnection.java)
       at android.database.sqlite.SQLiteConnection.executeForCursorWindow(SQLiteConnection.java:1015)
       at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:836)
       at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62)
       at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:147)
       at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:136)
       at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:197)
       at android.database.AbstractCursor.moveToFirst(AbstractCursor.java:237)
       at android.arch.persistence.room.RoomOpenHelper.checkIdentity(SourceFile:127)
       at android.arch.persistence.room.RoomOpenHelper.onOpen(SourceFile:115)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.onOpen(SourceFile:151)
       at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:266)
       at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.getWritableSupportDatabase(SourceFile:96)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper.getWritableDatabase(SourceFile:54)
       at android.arch.persistence.room.RoomDatabase.query(SourceFile:233)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl$4.compute(SourceFile:555)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl$4.compute(SourceFile:541)
       at android.arch.lifecycle.ComputableLiveData$2.run(SourceFile:100)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
       at java.lang.Thread.run(Thread.java:818)

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另一个 LiveData 查询崩溃。

Fatal Exception: android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 778)
       at android.database.sqlite.SQLiteConnection.nativeExecute(SQLiteConnection.java)
       at android.database.sqlite.SQLiteConnection.execute(SQLiteConnection.java:561)
       at android.database.sqlite.SQLiteSession.endTransactionUnchecked(SQLiteSession.java:437)
       at android.database.sqlite.SQLiteSession.endTransaction(SQLiteSession.java:401)
       at android.database.sqlite.SQLiteDatabase.endTransaction(SQLiteDatabase.java:528)
       at android.arch.persistence.db.framework.FrameworkSQLiteDatabase.endTransaction(SourceFile:90)
       at android.arch.persistence.room.RoomDatabase.endTransaction(SourceFile:261)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl.update(SourceFile:188)
       at com.sofaking.moonworshipper.registration.DefaultAlarmRegistrationImpl.onCalculateAlarms(SourceFile:58)
       at com.sofaking.moonworshipper.registration.BaseAlarmRegistrationImpl$start$runnable$1.run(SourceFile:37)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
       at java.lang.Thread.run(Thread.java:764)

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这来自更新对象实例（也由 Room 处理）

Fatal Exception: android.database.sqlite.SQLiteDatabaseCorruptException: file is encrypted or is not a database (code 26)
       at android.database.sqlite.SQLiteConnection.nativeExecuteForCursorWindow(SQLiteConnection.java)
       at android.database.sqlite.SQLiteConnection.executeForCursorWindow(SQLiteConnection.java:845)
       at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:836)
       at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62)
       at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
       at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:132)
       at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:219)
       at android.database.AbstractCursor.moveToFirst(AbstractCursor.java:258)
       at android.arch.persistence.room.RoomOpenHelper.hasRoomMasterTable(SourceFile:155)
       at android.arch.persistence.room.RoomOpenHelper.checkIdentity(SourceFile:123)
       at android.arch.persistence.room.RoomOpenHelper.onOpen(SourceFile:115)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.onOpen(SourceFile:151)
       at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:266)
       at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.getWritableSupportDatabase(SourceFile:96)
       at android.arch.persistence.db.framework.FrameworkSQLiteOpenHelper.getWritableDatabase(SourceFile:54)
       at android.arch.persistence.room.RoomDatabase.query(SourceFile:233)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl$4.compute(SourceFile:321)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl$4.compute(SourceFile:307)
       at android.arch.lifecycle.ComputableLiveData$2.run(SourceFile:100)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

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同样，似乎来自 LiveData 的 AlarmDao_Impl$4.compute() 方法

Fatal Exception: android.database.sqlite.SQLiteException: Failed to change locale for db '/data/user_de/0/com.sofaking.moonworshipper/databases/alarm-database' to 'fr_FR'.
       at android.database.sqlite.SQLiteConnection.setLocaleFromConfiguration(SQLiteConnection.java:402)
       at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:223)
       at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:198)
       at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
       at android.database.sqlite.SQLiteConnectionPool.tryAcquireNonPrimaryConnectionLocked(SQLiteConnectionPool.java:899)
       at android.database.sqlite.SQLiteConnectionPool.waitForConnection(SQLiteConnectionPool.java:609)
       at android.database.sqlite.SQLiteConnectionPool.acquireConnection(SQLiteConnectionPool.java:348)
       at android.database.sqlite.SQLiteSession.acquireConnection(SQLiteSession.java:894)
       at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:586)
       at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:58)
       at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:37)
       at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
       at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1353)
       at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1328)
       at android.arch.persistence.db.framework.FrameworkSQLiteDatabase.query(SourceFile:161)
       at android.arch.persistence.room.RoomDatabase.query(SourceFile:233)
       at com.sofaking.moonworshipper.database.room.AlarmDao_Impl.getAllAlarms(SourceFile:438)
       at com.sofaking.moonworshipper.database.AlarmHelper.getAllAlarms(SourceFile:29)
       at com.sofaking.moonworshipper.registration.DefaultAlarmRegistrationImpl.onCancelPendingAlarms(SourceFile:36)
       at com.sofaking.moonworshipper.registration.BaseAlarmRegistrationImpl$start$runnable$1.run(SourceFile:26)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

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与第二个 CursorWindowAllocationException 相同的区域，但有不同的崩溃

Answer 1

das*_*ima 3

最后，错误与数据库本身无关。我有一些图像资源未调整为 MDPI、HDPI 或 XHDPI。它们仅以 XXHDPI 形式提供。

引用另一个线程的答案： /sf/answers/1810290471/

如果你查一下它的来源，CursorWindowAllocationException它是这样写的：

当无法分配 CursorWindow 时会引发此异常，很可能是由于内存不可用。

显然，由于图像占用了应用程序的大量堆内存，因此光标无法自行分配。

现在我没有发生这些崩溃了。

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