Question

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一些“HeapWorker被楔入”错误。

Logcat

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

Answer 1

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。所以像下面这样的层次结构

<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, or DELETE语句时，将获取RESERVED锁。在内存高速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，系统会阻止阻止对文件文件的读访问，直到最后一刻。

当数据库处于事务

时，我刚从代码中删除了选择查询行

修改的

另外还有一个解决方案是你设置锁定启用假，如

mDb.setLockingEnabled(false);

Answer 2

问题是 终结器 会长时间停留。

如果你可以消除终结器，问题就解决了。如果你不能，你需要消除终结者和终结者之间的相互依存关系慢速运行的线程。

虚拟机假设终结器快速完成，任何事情都可以完成真的很长时间可能陷入僵局。

不是等待VM耗尽资源并神秘地崩溃，而是立即告诉您有关问题的信息，然后在头部射击以确保你发现。 #copied来自Here

如何在Android中解决错误“HeapWorker is wedged”？

2 个答案: