Is this outofmemory error on series 40 phones?
Hi all,
I am trying to port my MIDLet application to series 40 phones. My application works fine with 7210MIDP SDK. However, when I play on the phones(6800, 7210, 6100), sometimes I could go through the application, sometimes after I go through a couple of screens then it is freezing. This freezing problem happens randomly, I can't predict when it is going to occure.
I am thinking it might be running out of memory heap because I have got lot of images. According to some postings in this forum, I have computed the heap size used by my images, it is 2bytes/pixel and total about 50KB for images only, and the official heap size for series 40 phones is 200KB . However, when I set heapsize in java wtk2.1 to be 100K and run my application, I get a "unable to run application" error message which is different from what I get on the phones.
Could running out of memory cause phone freezing problems?. I really appreciate any advice. Thanks!!!
Hi forum,
i would like to aska Q related to the same ISSUE thatis why i intended to put it here not in a new thread
i have a MIDP application that deal with only one JPEG at a atime but i hav ea obut 4 different jpegs
- frankly i can setup the MIDLET with only one jpeg -
that is not the deal
- the problem is i find the emulator exits when i runt he app.
- i tried using thememory monitor i found o/t outofmemoryerror
- i began debugging the source using the java studio mobility and in a specific line it game me that exception
i admit the program uses alot alot of arrays and hashtable but the gc is working an di get rid of any non-used objects..
the application works in TWO threads
to take the whole view.. while im monitoring the object creation - using the memory monitoring -
be4 the exit i found alot alot of strings objects to be created, but the line i stopped at in debugging was allocating arrays of bytes (of big size ) so i guess the strings is in the other thread
last i printed out the free VS total memory using
Runtime.getruntime().freememory() , Runtime.getruntime().totalmemory();
i found the total memory is only 500000
i tried changing the IDE file in the bin directory of the studio to use the max availabe memory
but no difference
any help PLZ
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Edited by: rei_xanther on Jun 28, 2010 12:01 AM
Edited by: rei_xanther on Jun 28, 2010 12:37 AMrei_xanther wrote:
..But the maximum value of the int data type is 2,147,483,647. That is the maximum positive integer value that can be stored in (the 4 bytes of) a signed int, but..
..The value that I passed in the int array size is only 90,189,840...its only connection with RAM is that each int requires 4 bytes of memory to hold it.
new int[size] -- size is 90,189,840Sure. So the number of bytes required to hold those 90,189,840 ints is 360,759,360.
I assumed that one element in the int array is 1 byte. ..Your assumption is wrong. How could it be possible to store 32 bits (4 bytes) in 8 bits (1 byte)? (a)
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2006-10-13 16:46:57 0. Name: CachedLayerTimer
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2006-10-13 16:46:57 0. Priority: 5
2006-10-13 16:46:57 0. Parent: SMT Refreshing Threads
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Software runs well until I get the DataFactory.createPCVPPMforSiemens function in my code ->
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2006-10-13 16:47:01 Thread count: 4
2006-10-13 16:47:01 Active count: 4
2006-10-13 16:47:01 Active group count: 0
2006-10-13 16:47:01 Daemon: false
2006-10-13 16:47:01 Priority: 5
2006-10-13 16:47:02 Free memory: 189,253,304 bytes
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2006-10-13 16:47:02 Memory in use: 143,735,112 bytes
2006-10-13 16:47:02 ---------------------------------
2006-10-13 16:47:02 0. Name: CachedLayerTimer
2006-10-13 16:47:02 0. Id: 19
2006-10-13 16:47:02 0. Priority: 5
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2006-10-13 16:47:02 net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:997)
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2006-10-13 16:47:06 Active count: 4
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2006-10-13 16:47:06 Priority: 5
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2006-10-13 16:47:15 Free memory: 66,760,208 bytes
2006-10-13 16:47:15 Max memory: 332,988,416 bytes
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2006-10-13 16:47:15 ---------------------------------
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2006-10-13 16:47:15 0. Priority: 5
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2006-10-13 16:47:20 0. Alive: true
2006-10-13 16:47:20 net.sourceforge.jtds.util.TimerThread.setTimer(TimerThread.java:171)
2006-10-13 16:47:20 net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3734)
2006-10-13 16:47:20 net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:997)
2006-10-13 16:47:20 net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:320)
2006-10-13 16:47:20 net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:667)
2006-10-13 16:47:20 xcompany.database.sql.SQLCommandBean.executeQuery(SQLCommandBean.java:91)
2006-10-13 16:47:20 xcompany.smtmonitor.data.SiemensWorks.getPCVPPM(SiemensWorks.java:409)
2006-10-13 16:47:20 xcompany.smtmonitor.data.DataFactory.createPCVPPMforSiemens(DataFactory.java:6103)
2006-10-13 16:47:20 xcompany.smtmonitor.data.DataFactory.refreshProcessControlView(DataFactory.java:5791)
2006-10-13 16:47:20 xcompany.smtmonitor.CachedLayerRefreshenerTask.run(CachedLayerRefreshenerTask.java:514)
2006-10-13 16:47:20 java.util.TimerThread.mainLoop(Unknown Source)
2006-10-13 16:47:20 java.util.TimerThread.run(Unknown Source)
2006-10-13 16:47:23 Name: SMT Refreshing Threads
2006-10-13 16:47:23 Thread count: 4
2006-10-13 16:47:23 Active count: 4
2006-10-13 16:47:23 Active group count: 0
2006-10-13 16:47:23 Daemon: false
2006-10-13 16:47:23 Priority: 5
2006-10-13 16:47:26 Free memory: 4,907,336 bytes
2006-10-13 16:47:26 Max memory: 332,988,416 bytes
2006-10-13 16:47:26 Memory in use: 328,083,768 bytes
2006-10-13 16:47:26 ---------------------------------
2006-10-13 16:47:26 0. Name: CachedLayerTimer
2006-10-13 16:47:26 0. Id: 19
2006-10-13 16:47:26 0. Priority: 5
2006-10-13 16:47:26 0. Parent: SMT Refreshing Threads
2006-10-13 16:47:26 0. State: RUNNABLE
2006-10-13 16:47:26 0. Alive: true
2006-10-13 16:47:26 java.util.LinkedList.addBefore(Unknown Source)
2006-10-13 16:47:26 java.util.LinkedList.access$300(Unknown Source)
2006-10-13 16:47:26 java.util.LinkedList$ListItr.add(Unknown Source)
2006-10-13 16:47:26 net.sourceforge.jtds.util.TimerThread.setTimer(TimerThread.java:175)
2006-10-13 16:47:26 net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3734)
2006-10-13 16:47:26 net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:997)
2006-10-13 16:47:26 net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:320)
2006-10-13 16:47:26 net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:667)
2006-10-13 16:47:26 xcompany.database.sql.SQLCommandBean.executeQuery(SQLCommandBean.java:91)
2006-10-13 16:47:26 xcompany.smtmonitor.data.SiemensWorks.getPCVPPM(SiemensWorks.java:409)
2006-10-13 16:47:26 xcompany.smtmonitor.data.DataFactory.createPCVPPMforSiemens(DataFactory.java:6103)
2006-10-13 16:47:26 xcompany.smtmonitor.data.DataFactory.refreshProcessControlView(DataFactory.java:5791)
2006-10-13 16:47:26 xcompany.smtmonitor.CachedLayerRefreshenerTask.run(CachedLayerRefreshenerTask.java:514)
2006-10-13 16:47:26 java.util.TimerThread.mainLoop(Unknown Source)
2006-10-13 16:47:26 java.util.TimerThread.run(Unknown Source)
2006-10-13 16:47:35 Name: SMT Refreshing Threads
2006-10-13 16:47:37 Thread count: 4
2006-10-13 16:47:38 Active count: 4
2006-10-13 16:47:38 Active group count: 0
2006-10-13 16:47:38 Daemon: false
2006-10-13 16:47:38 Priority: 5
2006-10-13 16:47:42 Free memory: 35,316,120 bytes
2006-10-13 16:47:42 Max memory: 332,988,416 bytes
2006-10-13 16:47:42 Memory in use: 297,672,296 bytes
2006-10-13 16:47:42 ---------------------------------
2006-10-13 16:47:42 0. Name: CachedLayerTimer
2006-10-13 16:47:42 0. Id: 19
2006-10-13 16:47:42 0. Priority: 5
2006-10-13 16:47:42 0. Parent: SMT Refreshing Threads
2006-10-13 16:47:42 0. State: TIMED_WAITING
2006-10-13 16:47:42 0. Alive: true
2006-10-13 16:47:42 java.lang.Object.wait(Native Method)
2006-10-13 16:47:42 java.util.TimerThread.mainLoop(Unknown Source)
2006-10-13 16:47:42 java.util.TimerThread.run(Unknown Source)
4. Tomcat default logging file:
2006-10-13 16:47:36 ERROR CachedLayerRefreshenerTask: external error: Java heap space
5. DbConnectionBroker (connection pooling) logging file:
Handing out connection 1 --> 10/13/2006 04:47:01 PM
Handing out connection 0 --> 10/13/2006 04:47:01 PM
Handing out connection 1 --> 10/13/2006 04:47:01 PM
Handing out connection 0 --> 10/13/2006 04:47:02 PM
Warning. Connection 0 in use for 3141 ms
Warning. Connection 0 in use for 24891 ms
----> Error: Could not free connection!!!
I would appreciate for any help.What does your query bring back from this table?This is the query:
SELECT case sum(c.picked) when 0 then 0 else
((sum(c.picked)-(sum(c.picked)-(sum(c.vacuum)+sum(c.id
ent))))*cast((1000000/cast(sum(c.picked) as float))
as bigint)) end as PPM
FROM sip_comp c
LEFT JOIN sip_pcb pc ON pc.id=c.pcbid
LEFT JOIN sip_period p on p.id=pc.periodid
WHERE p.stationid=? AND pc.time BETWEEN ? AND ?Has anybody who knows SQL tried EXPLAIN PLAN to optimize this table? You're joining on a table with a million rows and you're wondering why the performance is poor?
What is the index situation with these tables?
.> When I execute it from query manager, it takes from 1
to 60 secs depend on servers availability. So how will that be any different for JDBC and Java?
..> You're right. Thats why I am here.
What I mean by that is we can't read minds, either. You need to get some hard data to tell you where the bottleneck is. Asking at a forum won't help.
But tell me, if the java process enters to this query
execution, and doesnt quit until OOM thrown, how can
be the problem in caching?I was guessing about caching, because I didn't know what the query was.
You expect a lot.
.> No.
Then how do you ever expect to solve this?
I tried YourKit Profiler at home, where I'm
developing software, but this OOM never thrown here,
even if I have the same database size.Then you aren't replicating the problem. You have to run it on the system that has the problem if you're going to solve it.
YourKit isn't an industry leader. How well do you know how to use it?
It just happened at the company where the system
runs, and I cannot run this profiler there because
the PC where my tomcat runs dramatically slowed.You have to run something to figure out what the problem is. What about Log4J, some trace logging statements and a batch job to harvest the log?
Bottom line: you've got to be a scientist and get some real data. We can theorize all we want here, but that won't get you to a solution.
% -
Java.lang.OutOfMemory error while retrieving data from a large table
Hi,
i am trying to fetch data using "executeQuery()" into a ResultSet from the database. But since the data in that table is large. i am recieving "java.lang.OutOfMemory" Error. So, to resolve that, i have used "setMaxRows()" for my statement object. This resolved the error but i don't recieve the entire data. If i call "executeQuery()" again, i recieve the same data. I don't even know a filtering criterion where by i can filter the data for each "executeQuery()"..
How can i resolve this problem
Thanx in advance
--ChaitanyaEither use some criteria you develop related to one of the keys on the table or use some sort of record limiting method.
Note the method of limiting will vary related to the database you are using. You will have to look at the documentation.
For example I am told this will work in MySQL to get 200 records starting at record 100.
SELECT * FROM myTable ORDER BY whatever ASC LIMIT 100,200
Because you are running out of memroy I assume the table is large,
I am not sure what the impact of the above will have on performance because if in the above if the order by is not based on an index at the server level all the records will be selected and sorted before the records are limited.
I would make sure you have an appropriate index.
If you use the advanced search over the user forums using "resultset paging" and possibility the database you are using you should be able to get some ideas.
I hope this makes sense to you.
rykk -
I received an error while updating my phone to ios6. Now it's frozen and I can't power down or reconnect it to show in iTunes. What do I do?
You can try contact iTunes support via this page : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption
-
I need to setup 7800 Series IP Phones in the CUCM 8.6.2 which by default are not support but will work after install the software. Anyone have document from Cisco as I remember I seen once before.
Hi Ali,
I'll just add this reference to the good tips from my friend Manish (+5)
Support for the 7800 series in CUCM 8.6.2 was first added with this
Device Pack;
Cisco Unified Communications Manager
Device Package 8.6(2)(24104-1)Release Notes
Cisco Unified Communications Manager Device Package Release 8.6(2)
adds support for the Cisco IP Phones
7821, 7841, and 7861 running SIP firmware release 10.1(1).
The steps are in this doc
http://www.cisco.com/web/software/282074299/107528/cmterm-devicepack-8.6.2.24104-1_Readme.pdf
You might as well install the latest 8.6.2 Device pack
cmterm-devicepack8.6.2.24112-1.cop.sgn
Cheers!
Rob
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