由于错误-24,无法分配大小为2097152的CursorWindow'/ pos-db'

Question

例外信息

cannot open file at line 30176 of [00bb9c9ce4]
 (14) os_unix.c:30176: (24) open(/data/data/c/databases/pos-db-journal) - 
 (14) cannot open file at line 30176 of [00bb9c9ce4]
 (14) os_unix.c:30176: (24) open(/data/data/c/pos-db-journal) - 
 (14) statement aborts at 14: [SELECT T."_id",T."PRINTDATA",T."POSITION",T."DOUBLEFORMAT",
 T."PRINTERMODE",T."INSERTTIME" FROM "PRINT_DATA_ITEM" T] unable to open database file
 E/SQLiteQuery: exception: unable to open database file (code 14); query: SELECT T."_id",T.
 "PRINTDATA",T."POSITION",T."DOUBLEFORMAT",T."PRINTERMODE",T."INSERTTIME" FROM "PRINT_DATA_ITEM" T

零件代码:

 private PrinterTask(Context context) {
        this.mContext = context;
        helper = new DaoMaster.DevOpenHelper(context, "pos-db", null);
        db = helper.getWritableDatabase();
        mDaoMaster = new DaoMaster(db);
        mDaoSession = mDaoMaster.newSession();
        mPrintDataItemDao = mDaoSession.getPrintDataItemDao();
        mRequestDataItemDao = mDaoSession.getRequestDataItemDao();
    }
//
 public void startPrintThread() {
        dataIsExist = true;
        //
        if (!threadIsRuning) {
            thread = new Thread() {
                @Override
                public void run() {
                    super.run();
                    threadIsRuning = true;
                    List<PrintDataItem> list; 
                    while (dataIsExist) {
                        list = mPrintDataItemDao.loadAll();
                         if (list != null && list.size() > 0) {
                        KLog.d("startPrintThread", String.valueOf(++count) + "  " + String.valueOf(list.size()));
                    }
                    threadIsRuning = false;
                }
            };
            thread.start();
        }

当计数被添加到大约600000时,app将存在而没有任何预兆.然后logcat输出这些信息.

日志输出:

?1?Could not create epoll instance. errno=24
?2?CursorWindow(26673): Could not allocate CursorWindow of size 2097152 due to error -24
?3?F/Looper  (26673): Could not create wake pipe.  errno=24
I/qtaguid (20825): Failed write_ctrl(s 0 10051) res=-1 errno=1
 FATAL EXCEPTION: Thread-118`enter code here`

我能做什么才能解决这个问题？我会很感激的!

Answer 1

这些代码是好的。我发现其他代码加载这些异常。\n我使用intentservice和AlarmManager来进行循环服务。\n我放弃AlarmManager。然后像这样更改代码：\n它可以工作。不再出现异常。

\n\n

new Thread(new Runnable() {\n        @Override\n        public void run() {\n            mRequestDataItem = DBHelper.getInstance(getApplicationContext()).getTopFailedNetRequestInDataBase();\n            while (isRunning) {\n                CommonUtilLog.d("reRequestTask Loop", String.valueOf(countLoop++));\n                if (!isPosting) {\n                    if (reRequestTask == null) {\n                        if (mRequestDataItem != null) {\n                            CommonUtilLog.d("reRequestTask", String.valueOf(count++));\n                            reRequestTask = new ReRequestTask(mRequestDataItem);\n                        }\n                    }\n                }\n                try {\n                    Thread.sleep(CommonConstant.THREAD_SLEEP_RETRY_REQUEST_SERVICE);\n                } catch (InterruptedException e) {\n                    e.printStackTrace();\n                }\n                mRequestDataItem = DBHelper.getInstance(getApplicationContext()).getTopFailedNetRequestInDataBase();\n            }\n        }\n    }).start();\n

\n\n

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\n