我从服务器中获取大量数据.我使用Get方法来获得响应,我能够得到响应,但问题是在解析应用程序之间崩溃是因为某些“HeapWorker被楔入”错误.
logcat的
12-20 10:02:55.111: ERROR/dalvikvm(277): HeapWorker is wedged: 10194ms spent inside Landroid/database/sqlite/SQLiteCursor;.finalize()V 12-20 10:02:55.111: INFO/dalvikvm(277): DALVIK THREADS: 12-20 10:02:55.111: INFO/dalvikvm(277): "main" prio=5 tid=3 NATIVE 12-20 10:02:55.111: INFO/dalvikvm(277): | group="main" sCount=1 dsCount=0 s=Y obj=0x4001b268 self=0xbd00 12-20 10:02:55.111: INFO/dalvikvm(277): | sysTid=277 nice=0 sched=0/0 cgrp=default handle=-1344001384 12-20 10:02:55.111: INFO/dalvikvm(277): at android.graphics.NinePatch.nativeDraw(Native Method) 12-20 10:02:55.111: INFO/dalvikvm(277): at android.graphics.NinePatch.draw(NinePatch.java:104) 12-20 10:02:55.111: INFO/dalvikvm(277): at android.graphics.drawable.NinePatchDrawable.draw(NinePatchDrawable.java:188) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.View.draw(View.java:6520) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.widget.FrameLayout.draw(FrameLayout.java:352) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.drawChild(ViewGroup.java:1531) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.View.draw(View.java:6538) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.widget.FrameLayout.draw(FrameLayout.java:352) 12-20 10:02:55.121: INFO/dalvikvm(277): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1830) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewRoot.draw(ViewRoot.java:1349) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewRoot.performTraversals(ViewRoot.java:1114) 12-20 10:02:55.121: INFO/dalvikvm(277): at android.view.ViewRoot.handleMessage(ViewRoot.java:1633) 12-20 10:02:55.132: INFO/dalvikvm(277): at android.os.Handler.dispatchMessage(Handler.java:99) 12-20 10:02:55.132: INFO/dalvikvm(277): at android.os.Looper.loop(Looper.java:123) 12-20 10:02:55.132: INFO/dalvikvm(277): at android.app.ActivityThread.main(ActivityThread.java:4363) 12-20 10:02:55.132: INFO/dalvikvm(277): at java.lang.reflect.Method.invokeNative(Native Method) 12-20 10:02:55.132: INFO/dalvikvm(277): at java.lang.reflect.Method.invoke(Method.java:521) 12-20 10:02:55.132: INFO/dalvikvm(277): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 12-20 10:02:55.132: INFO/dalvikvm(277): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 12-20 10:02:55.132: INFO/dalvikvm(277): at dalvik.system.NativeStart.main(Native Method) 12-20 10:02:55.132: INFO/dalvikvm(277): "AsyncTask #1" prio=5 tid=15 RUNNABLE 12-20 10:02:55.132: INFO/dalvikvm(277): | group="main" sCount=0 dsCount=0 s=N obj=0x44dd0bd0 self=0x125a30 12-20 10:02:55.132: INFO/dalvikvm(277): | sysTid=283 nice=0 sched=0/0 cgrp=default handle=1203016 12-20 10:02:55.132: INFO/dalvikvm(277): at java.io.BufferedWriter.<init>(BufferedWriter.java:~67) 12-20 10:02:55.132: INFO/dalvikvm(277): at uk.co.dodec.ukrcmobileapp.helper.UDFHelper.createHtml(UDFHelper.java:167) 12-20 10:02:55.132: INFO/dalvikvm(277): at uk.co.dodec.ukrcmobileapp.helper.XMLParser.parseUpdates(XMLParser.java:510) 12-20 10:02:55.132: INFO/dalvikvm(277): at uk.co.dodec.ukrcmobileapp.Homepage$getUpdateTask.doInBackground(Homepage.java:170) 12-20 10:02:55.132: INFO/dalvikvm(277): at uk.co.dodec.ukrcmobileapp.Homepage$getUpdateTask.doInBackground(Homepage.java:1) 12-20 10:02:55.132: INFO/dalvikvm(277): at android.os.AsyncTask$2.call(AsyncTask.java:185) 12-20 10:02:55.132: INFO/dalvikvm(277): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 12-20 10:02:55.132: INFO/dalvikvm(277): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 12-20 10:02:55.141: INFO/dalvikvm(277): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 12-20 10:02:55.141: INFO/dalvikvm(277): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 12-20 10:02:55.141: INFO/dalvikvm(277): at java.lang.Thread.run(Thread.java:1096) 12-20 10:02:55.141: INFO/dalvikvm(277): "Binder Thread #2" prio=5 tid=13 NATIVE 12-20 10:02:55.141: INFO/dalvikvm(277): | group="main" sCount=1 dsCount=0 s=N obj=0x44da1c38 self=0x11d3c8 12-20 10:02:55.141: INFO/dalvikvm(277): | sysTid=282 nice=0 sched=0/0 cgrp=default handle=1343552 12-20 10:02:55.141: INFO/dalvikvm(277): at dalvik.system.NativeStart.run(Native Method) 12-20 10:02:55.141: INFO/dalvikvm(277): "Binder Thread #1" prio=5 tid=11 NATIVE 12-20 10:02:55.141: INFO/dalvikvm(277): | group="main" sCount=1 dsCount=0 s=N obj=0x44d9dea8 self=0x14d8d0 12-20 10:02:55.141: INFO/dalvikvm(277): | sysTid=281 nice=0 sched=0/0 cgrp=default handle=1366160 12-20 10:02:55.141: INFO/dalvikvm(277): at dalvik.system.NativeStart.run(Native Method) 12-20 10:02:55.141: INFO/dalvikvm(277): "JDWP" daemon prio=5 tid=9 VMWAIT 12-20 10:02:55.141: INFO/dalvikvm(277): | group="system" sCount=1 dsCount=0 s=N obj=0x44d9b2a0 self=0x145338 12-20 10:02:55.141: INFO/dalvikvm(277): | sysTid=280 nice=0 sched=0/0 cgrp=default handle=1331744 12-20 10:02:55.141: INFO/dalvikvm(277): at dalvik.system.NativeStart.run(Native Method) 12-20 10:02:55.141: INFO/dalvikvm(277): "Signal Catcher" daemon prio=5 tid=7 VMWAIT 12-20 10:02:55.141: INFO/dalvikvm(277): | group="system" sCount=1 dsCount=0 s=N obj=0x44d9b1e8 self=0x145108 12-20 10:02:55.141: INFO/dalvikvm(277): | sysTid=279 nice=0 sched=0/0 cgrp=default handle=1262808 12-20 10:02:55.141: INFO/dalvikvm(277): at dalvik.system.NativeStart.run(Native Method) 12-20 10:02:55.151: INFO/dalvikvm(277): "HeapWorker" daemon prio=5 tid=5 WAIT 12-20 10:02:55.151: INFO/dalvikvm(277): | group="system" sCount=1 dsCount=0 s=N obj=0x4369a188 self=0x1343c0 12-20 10:02:55.151: INFO/dalvikvm(277): | sysTid=278 nice=0 sched=0/0 cgrp=default handle=1208016 12-20 10:02:55.151: INFO/dalvikvm(277): at java.lang.Object.wait(Native Method) 12-20 10:02:55.151: INFO/dalvikvm(277): - waiting on <0x3362f0> (a java.lang.VMThread) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.lang.Thread.parkFor(Thread.java:1535) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48) 12-20 10:02:55.151: INFO/dalvikvm(277): at sun.misc.Unsafe.park(Unsafe.java:317) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.LockSupport.park(LockSupport.java:131) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:790) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:823) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1153) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.ReentrantLock$FairSync.lock(ReentrantLock.java:200) 12-20 10:02:55.151: INFO/dalvikvm(277): at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:261) 12-20 10:02:55.151: INFO/dalvikvm(277): at android.database.sqlite.SQLiteDatabase.lock(SQLiteDatabase.java:305) 12-20 10:02:55.151: INFO/dalvikvm(277): at android.database.sqlite.SQLiteProgram.close(SQLiteProgram.java:219) 12-20 10:02:55.151: INFO/dalvikvm(277): at android.database.sqlite.SQLiteQuery.close(SQLiteQuery.java:141) 12-20 10:02:55.151: INFO/dalvikvm(277): at android.database.sqlite.SQLiteCursor.close(SQLiteCursor.java:507) 12-20 10:02:55.151: INFO/dalvikvm(277): at android.database.sqlite.SQLiteCursor.finalize(SQLiteCursor.java:586) 12-20 10:02:55.151: INFO/dalvikvm(277): at dalvik.system.NativeStart.run(Native Method) 12-20 10:02:55.151: ERROR/dalvikvm(277): VM aborting 12-20 10:02:55.296: INFO/DEBUG(28): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 12-20 10:02:55.296: INFO/DEBUG(28): signal 11 (SIGSEGV),fault addr deadd00d 12-20 10:02:55.296: INFO/DEBUG(28): r0 00000354 r1 afe1331d r2 0000000c r3 deadd00d 12-20 10:02:55.296: INFO/DEBUG(28): r4 00000026 r5 400091e8 r6 ad065714 r7 003fca30 12-20 10:02:55.296: INFO/DEBUG(28): r8 00000344 r9 00000001 10 ad080c00 fp 00000000 12-20 10:02:55.296: INFO/DEBUG(28): ip ad080160 sp 46a32c58 lr afe142dd pc ad035452 cpsr 20000030 12-20 10:02:55.391: INFO/DEBUG(28): #00 pc 00035452 /system/lib/libdvm.so 12-20 10:02:55.391: INFO/DEBUG(28): #01 pc 000440d8 /system/lib/libdvm.so 12-20 10:02:55.391: INFO/DEBUG(28): #02 pc 0001680c /system/lib/libdvm.so 12-20 10:02:55.391: INFO/DEBUG(28): #03 pc 000170c4 /system/lib/libdvm.so 12-20 10:02:55.391: INFO/DEBUG(28): #04 pc 0001724c /system/lib/libdvm.so 12-20 10:02:55.401: INFO/DEBUG(28): #05 pc 00055b52 /system/lib/libdvm.so 12-20 10:02:55.401: INFO/DEBUG(28): #06 pc 00055c80 /system/lib/libdvm.so 12-20 10:02:55.401: INFO/DEBUG(28): #07 pc 00055d80 /system/lib/libdvm.so 12-20 10:02:55.401: INFO/DEBUG(28): #08 pc 0001353c /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #09 pc 00019888 /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #10 pc 00018d5c /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #11 pc 0004d6d0 /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #12 pc 0004d702 /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #13 pc 00041c78 /system/lib/libdvm.so 12-20 10:02:55.411: INFO/DEBUG(28): #14 pc 00010000 /system/lib/libc.so 12-20 10:02:55.411: INFO/DEBUG(28): #15 pc 0000fad4 /system/lib/libc.so 12-20 10:02:55.411: INFO/DEBUG(28): code around pc: 12-20 10:02:55.411: INFO/DEBUG(28): ad035440 4808ecb6 6b9b5823 d0002b00 4b064798 12-20 10:02:55.411: INFO/DEBUG(28): ad035450 701c2426 ed28f7d9 0004ab1c fffe57c4 12-20 10:02:55.411: INFO/DEBUG(28): ad035460 fffe8c30 00000354 deadd00d b510b40e 12-20 10:02:55.411: INFO/DEBUG(28): code around lr: 12-20 10:02:55.422: INFO/DEBUG(28): afe142cc 220ce008 2b005eab 1c28d003 47889901 12-20 10:02:55.422: INFO/DEBUG(28): afe142dc 35544306 d5f43f01 2c006824 b003d1ee 12-20 10:02:55.422: INFO/DEBUG(28): afe142ec bdf01c30 00024b44 000000b4 1c0fb5f0 12-20 10:02:55.422: INFO/DEBUG(28): stack: 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c18 00000015 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c1c afe1334d /system/lib/libc.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c20 afe3902c /system/lib/libc.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c24 afe38fd8 /system/lib/libc.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c28 00000000 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c2c afe142dd /system/lib/libc.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c30 46a32c44 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c34 afe1331d /system/lib/libc.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c38 ad065714 /system/lib/libdvm.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c3c ad07ff50 /system/lib/libdvm.so 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c40 400091e8 /dev/ashmem/mspace/dalvik-heap/zygote/0 (deleted) 12-20 10:02:55.422: INFO/DEBUG(28): 46a32c44 ad065714 /system/lib/libdvm.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c48 003fca30 [heap] 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c4c afe1337f /system/lib/libc.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c50 df002777 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c54 e3a070ad 12-20 10:02:55.431: INFO/DEBUG(28): #00 46a32c58 ad06ccd7 /system/lib/libdvm.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c5c ad0440dd /system/lib/libdvm.so 12-20 10:02:55.431: INFO/DEBUG(28): #01 46a32c60 000027d2 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c64 00000000 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c68 42a58733 /data/dalvik-cache/system@framework@framework.jar@classes.dex 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c6c 42ad950b /data/dalvik-cache/system@framework@framework.jar@classes.dex 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c70 003fca30 [heap] 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c74 0000011b 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c78 ad080f8c /system/lib/libdvm.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c7c afe0f3b0 /system/lib/libc.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c80 009b8cc3 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c84 00000000 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c88 00000354 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c8c 400091e8 /dev/ashmem/mspace/dalvik-heap/zygote/0 (deleted) 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c90 ad07ff50 /system/lib/libdvm.so 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c94 00000354 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c98 0000000a 12-20 10:02:55.431: INFO/DEBUG(28): 46a32c9c ad016810 /system/lib/libdvm.so
解决方法
我找到了解决问题的方法
我在解析数据和将数据插入数据库时使用事务.
但在这之间我试图从数据库中获取一些值.
这样的层次结构如下
我在解析数据和将数据插入数据库时使用事务.
但在这之间我试图从数据库中获取一些值.
这样的层次结构如下
<transaction> <Insert> <select> <insert> </transaction>
我正在尝试在数据库上运行select查询,而数据库在事务中.
实际上这里有一个关于concurrent transaction的解决方案
SQL命令“BEGIN TRANSACTION”(TRANSACTION关键字是可选的)用于使SQLite脱离自动提交模式.请注意,BEGIN命令不会获取数据库上的任何锁定.在BEGIN命令之后,执行第一个SELECT语句时将获取SHARED锁.执行第一个INSERT,UPDATE或DELETE语句时将获取RESERVED锁.在内存缓存填满并且必须溢出到磁盘或事务提交之前,不会获取EXCLUSIVE锁.通过这种方式,系统延迟阻止对文件文件的读访问,直到最后一刻.
我只是在数据库处于事务中时从代码中删除了选择查询行
编辑
另外还有一个解决方案是你设置锁定启用false就像
mDb.setLockingEnabled(false);
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