"error code 5: database is locked" when using ContentProvider

Question

I have an application that launches an action with a service in a separate process that launches and binds to activity. The service contains a handler that sends runnable to start after a delay.

I want each component to register with the database, so I implemented a content provider that accesses the database, and I call it from a service or activity through AsyncTask extended subclasses.

All this works fine on the emulator, but when I run it when debugging on my phone, I get a sporadic error with a locked database in my database record:

UPDATE

I made some changes to the processing of my database, and the error changed a bit.

ERROR/Database(15235): Error inserting MY_MESSAGE
ERROR/Database(15235): android.database.sqlite.SQLiteException: error code 5: database is locked
ERROR/Database(15235):     at android.database.sqlite.SQLiteStatement.native_execute(Native Method)
ERROR/Database(15235):     at android.database.sqlite.SQLiteStatement.execute(SQLiteStatement.java:61)
ERROR/Database(15235):     at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1591)
ERROR/Database(15235):     at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1435)
ERROR/Database(15235):     at mypackagename.DatabaseHelper.insertLogging(DatabaseHelper.java:190)
ERROR/Database(15235):     at mypackagename.ContentProvider.insert(ContentProvider.java:139)
ERROR/Database(15235):     at android.content.ContentProvider$Transport.insert(ContentProvider.java:198)
ERROR/Database(15235):     at android.content.ContentResolver.insert(ContentResolver.java:604)
ERROR/Database(15235):     at mypackagename.Activity$LogToDatabase.doInBackground(Activity.java:642)
ERROR/Database(15235):     at mypackagename.Activity$LogToDatabase.doInBackground(Activity.java:1)
ERROR/Database(15235):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
ERROR/Database(15235):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
ERROR/Database(15235):     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
ERROR/Database(15235):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
ERROR/Database(15235):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
ERROR/Database(15235):     at java.lang.Thread.run(Thread.java:1019)

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1) , ContentProvider?
2) API 2.3.3?
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private void logDatabaseMessage(String status, String message)
{
    String[] args = {status, message};
    LogToDatabase logTask = new LogToDatabase();
    logTask.execute(args);      
}

private class LogToDatabase extends AsyncTask<String, Integer, Void>
{
    @Override
    protected Void doInBackground(final String... args) 
    {
        try
        {
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS"); 
            String dateText = dateFormat.format(new Date());

            ContentValues loggingValues = new ContentValues();
            loggingValues.put(MyContentProvider.LOGGING_DATETIME, dateText);
            loggingValues.put(MyContentProvider.LOGGING_STATUS, args[0]);
            loggingValues.put(MyContentProvider.LOGGING_MESSAGE, args[1]);
            getContentResolver().insert(MyContentProvider.LOGGING_CONTENT_URI, loggingValues);
        }
        catch (Exception ex)
        {
            Log.e(TAG, "LogToDatabase.doInBackground threw exception: " + ex.getMessage());
            ex.printStackTrace();
        }               

        return null;
    }
}

ContentProvider:

@Override
public Uri insert(Uri uri, ContentValues values) 
{
    Uri _uri = null;
    long rowID = 0;

    try
    {
        switch (uriMatcher.match(uri))
        {
            case LOGGING:
                rowID = dbHelper.insertLogging(values);
                if (rowID == 0)
                    throw new SQLException("Failed to insert row into " + uri);

                _uri = ContentUris.withAppendedId(LOGGING_CONTENT_URI, rowID);
                break;

            default: throw new SQLException("Failed to insert row into " + uri);
        }

        if (rowID != 0)
            getContext().getContentResolver().notifyChange(_uri, null);    
    }
    catch (Exception ex)
    {
        Log.e(TAG, LogPrefix + "insert threw exception: " + ex.getMessage());
        ex.printStackTrace();
    }

    return _uri;    
}

DatabaseHelper:

public long insertLogging(ContentValues values)
{
    long rowID = 0;

    try
    {
        rowID = db.insert(LOGGING_TABLE, null,  values);
    }
    catch (Exception ex)
    {
        Log.e(TAG, LogPrefix + "ERROR: Failed to insert into logging table: " + ex.getMessage());
        ex.printStackTrace();
    }

    return rowID;
}

Answer 1

, SQLiteDatabase (, , SQLiteOpenHelper)?

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Answer 2

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