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doc
java linux virtual-machine oom
I have two virtual servers for hosting my web app. They are identical, running Debian 6 with 1.5GB of RAM. I configure the OS and Tomcat using a script from a fresh install, so I know they are identical.My webapp runs in Tomcat and I set 850M heap and 100M perm size. My app regularly dies on one of the servers. My first instinct was to check for the OOM killer, but there is no evidence of this in the logs.Questions:Can the OOM killer kill apps without leaving an appropriate log message? [Edit] I
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Jaromir Hamala
java memory-leaks websphere out-of-memory oom
I have an application running on Websphere Application Server 6.0 and it crashes nearly every day because of Out-Of-Memory. From verbose GC is certain there are the memory leaks(many of them) Unfortunately the application is provided by external vendor and getting things fixed is slow & painful process. As part of the process I need to gather the logs and heapdumps each time the OOM occurs.Now I’m looking for some way how to automate it. Fundamental problem is how to detect OOM condition. On
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Samsung Apps
c++ outofmemoryerror oom nothrow
When I code as below, it’ll return ‘null’ and no exception occured.Char* pStr = new(std::nothrow)Char(10);What about not using ‘nothrow’ argument on new operator? Does it also returns ‘null’? If so, why is it recommended to use ‘nothrow’ argument?Char* pStr = new Char(10);Thanks for your time.
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jens
java linux oom
just my complete Linux box crashed with OOM (OOM Killer Process killed the wrong processes), due to a java application consumed too much memory and there was no memroy left.My question is, if I use the JVM Paramter -XmX, does this limit Java to no more use Memory as specified by the -XmX option? Or said differently, If I do NOT specify the -XmX than java might allocate more and more memory with the result my linux box is crahsing itself with OOM?Thank you very much! Jens
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DevOfZot
java android oom
One of the first things my app does is read in a text file full of words and build a trie out of it. Testing on an older phone, a Droid X with 512MB RAM, It sometimes crashes with “Out of memory on a 160-byte allocation” while it is building the trie. Weirdly, it doesn’t crash every time. Using an 80K wordlist, it crashes every other time it’s launched. With a list of 20K words, it crashes every fourth time the app is launched. I don’t understand what’s going on that would affect the memory
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Kara
android 2d oom page-curl
in my app i am trying to show page curl effect using 100 images as explained in the following github link – hereIn the sample code they are using only two images but in my app i am using around 90 images. This causes the app to get crashed, saying the following issue in logcatE/dalvikvm-heap(603): Out of memory on a 5529616-byte allocation.When i tried with 7 images it was working good. When i try to increase more than 7, it gets crashed. All my images are in drawable folder. In that github code
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L_?o_??n_??g_??p_?o_??k_??e_??
erlang oom fault-tolerance
With the “let it crash” philosophy of Erlang, one would expect the entire VM not to crash if a process cannot allocate the memory needed to proceed with its operations; indeed, if the system had a heuristic to kill some process to free some memory, some other process would handle this and recover. Root supervisors would probably be unlikely to be killed by the heuristic.This is in direct contrast to most modern popular languages which just die or let the OS choose what to do.How is running out o
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Manju
android-layout inflate oom
I developed an application which supports multiple devices the .apk will run fine in every device but in samsung s3 and s4 crash happens this is the error log for the crash and respective layout code.android.view.InflateException: Binary XML file line #142: Error inflating class <unknown> com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) Caused by: java.lang.OutOfMemoryError at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at a
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Gael
linux arch-linux swap out-of-memory oom
I have no swap partition on my disk because I prefer having the OOM reaper kill anything it wants quickly rather than having to wait 10 minutes for my swap partition to get filled + 5 other minutes to launch the OOM reaper + crash. Basically, my problem is:launch “eat_all_my_memory”; wait 10 minutes with an unresponsive system (HHD LED always on); in the meantime, try to switch to a TTY; wait a couple of minutes to actually switch; enter the user name and the password; wait a couple of minutes;
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Zaemz
centos dmesg out-of-memory oom
I asked this question:Running `sudo /sbin/service mysqld start` causes system to crashIn the comments of one of the answers, a very helpful individual is asking for more information regarding how much memory processes were using when oom-killer is invoked.The output of dmesg is ~9000 lines, and hundreds of thousands of characters, though.An example of the output that I see multiple times throughout the output is this:Out of memory: Killed process 21000, UID 48, (httpd). mysqld invoked oom-killer
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slhck
linux memory process oom
Doing a bit of research I found it it is possible to tune or even make certain processes immune against the OOM killer by poking a value into /proc/pid/oom_adj I do of course need to find pid for my process using pidof or pgrep or something like that and make a script that I run once all my processes are up and running.The problem with the OOM killer is just like with any other killer. It may look sane and rational on the surface but deep down they are in fact seriously disturbed, quite insane a
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Christian Wolf
memory debian crash xen oom
I recently upgraded my server from Debian squeeze i386 to wheezy amd64 by reinstalling and reconfigurating. Additionally I wanted to be able to start virtual guests, so I installed XEN, too.I got then the problem that from time to time OOM killer destroyed multiple processes on my Dom0. I then restarted and disabled several services (like apache2, mysql, postgresql,…). Now it seems that no processes are destroyed anymore (unsure, as it does not happen regularely but in a stochastic fashion). B
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Peter Eisentraut
linux memory kernel oom
The OOM killer on Linux wreaks havoc with various applications every so often, and it appears that not much is really done on the kernel development side to improve this. Would it not be better, as a best practice when setting up a new server, to reverse the default on the memory overcommitting, that is, turn it off (vm.overcommit_memory=2) unless you know you want it on for your particular use? And what would those use cases be where you know you want the overcommitting on?As a bonus, since t
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sashar
linux-kernel oom
I am facing an issue on my system related to the out of memory (OOM) error. Under this condition, the oom kill utility of the linux kills a process (called “the bad process”) using a specific algorithm to free up the space. I want to print the memory, process stats just before this condition happens.mm/oom_kill.c contains the function out_of_memory(). I wanted to print my stats just before this function moves ahead with the killing of “the bad process”. For this i wrote the following bash script
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Aleksandr Levchuk
linux oom
On our cluster we would sometimes have nodes go down when a new process would request too much memory. I was puzzled why the OOM killer does not just kill the guilty process.The reason turned out to be that some processes get -17 oom_adj. That makes them off-limits for OOM killer (unkillabe!).I can clearly see that with the following script:#!/bin/bash for i in `grep -v 0 /proc/*/oom_adj | awk -F/ ‘{print $3}’ | grep -v self`; dops -p $i | grep -v CMD doneOK, it makes sense for sshd, udevd, and
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Ronnie Jespersen
memory ubuntu-10.04 oom
We use Nagios to monitor our servers. Now.. linux uses all the RAM we give them so there is no way to detect if we are about to run out of memory. We have a couple of times had some server crashes due to excessive memory usage.Is there any way to detect if ubuntu(linux) launches the OOM killer? I know its written in the log files but is there anyway to detect when it is launched?/RJ
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karlcyr
java jvm oom outofmemoryerror heapdump
My team is running into difficulties when trying to take good heap dumps triggered by OutOfMemoryErrors. For specific reasons we are currently taking the dumps with jmap called from a bash script instead of using the HeapDumpOnOutOfMemoryError flag. We’re using a 64-bit 1.6 JVM with a heap size around 3 GB. Our heap dumps fail 90% of the time (guesstimate). Is there anything we can do to improve our odds of getting a clean heap dump we can use to troubleshoot memory problems? I have read that jm
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maestrojed
mysql oom mysqltuner
My server keeps crashing from OOM errors cause by MySQL. I am convinced there is a query on this site that is wrong, too long and causes this issue. My server and MySQL logs show very little strain until the spike and issue happens. I would really, really like to identify this problematic query and fix the query. I feel like mysql tuning an otherwise good production server to survive a bad query, which I want to remove anyways, is a weird way to go about it. I have slow query logs set up but thi
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chutz
centos6 troubleshooting server-crashes memory-leak oom
The problemA server crashed after multiple “Out of memory” messages and I am trying to pinpoint the culprit. If it is in userland – which process. If it is in the kernel – which kernel module.DetailsI am trying to find out how to use the crash utility to investigate what triggered an OOM on a server.As part of the installation of a fresh pair of servers, I started the initialization of a 14TB DRBD device. Around that time, while playing with the DRBD syncer rate configuration, and bringing some
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ddhuy
mysql crash oom
On my website VPS the MySQL goes down quite often, once a day lately.I’ve looked in my syslog and seems like it is an Out Of Memory error. Is my MySQL not configured the right way or is does my VPS not have enough memory for what I’m running on it?Here are free and top:$ free -mtotal used free shared buffers cached Mem: 512 360 151 0 0 42 -/+ buffers/cache: 317 194 Swap: 0 0 0top –
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Aaron S
android android-emulator crash oom
I test a mobile app and have been struggling with constant crashes of the app when I use an Android emulator. I have no problem on physical Android devices, but emulators crash several times per day. The app will crash quite consistently once I find a crash-prone part of the app’s “workflow”. But exactly where in the app will trigger a crash seems to vary from version to version.Here is the crash report:Android: 2.3.7 Model: Full Android on x86 Emulatorjava.lang.OutOfMemoryError: bitmap size exc
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ray
android upload oom
I want to upload a file to net server use the codes. but when the size > 6M ,throw a FATAL EXCEPTION java.lang.OutOfMemoryErrorHttpURLConnection conn;URL url = new URL(mServerUrl);conn = (HttpURLConnection) url.openConnection();conn.setDoOutput(true);conn.setDoInput(true);conn.setUseCaches(false);conn.setRequestMethod(“POST”);conn.setRequestProperty(“Content-Type”, file.getContentType());conn.setRequestProperty(“Connection”, “close”);conn.setRequestProperty(“Charset”, “UTF-8”);conn.connect
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John J. Emerson
android bitmap oom
On Android 2.2, the following program produces an OOM. In summary, the program does the following:Allocates a big array that requires native heap to grow close to its maximum size. Garbage collects the array. Attempts to create a bitmap of size larger than the remaining native free heap.Why does this fail with an OOM? It’s as if the native heap will only allocate memory for bitmaps in memory previously unallocated.The output appears below the program. Thanks in advance.public class OomTest exten
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Alex
android bitmap oom
i tried writing some camera intent handler for taking pictures and post-precessing them (if needed). If i take some pictures on high-resolution my programm break with “allocation too large”. if i take some with lower resolution i’m able to take more but it’ll break too. After some search i found out that i have to recycle bitmaps i’d made manualy. but the problem didn’t disapear. my main problem is that i don’t know if there is 1. a memory leak in my code 2. i don’t know why it’s trying to alloc
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Crow
query configuration nosql cassandra oom
There is a need to read ~2.5Gb of records from cassandra 1.1.6 database running on CentOS release 6.3 virtual machine. When daemon with default out-of-the-box configuration is queried, i get error :INFO [Thread-2] 2012-10-30 20:05:13,345 CassandraDaemon.java (line 212) Listening for thrift clients…WARN [ScheduledTasks:1] 2012-10-30 20:06:27,076 GCInspector.java (line 145) Heap is 0.8434091049049706 full. You may need to reduce memtable and/orWARN [ScheduledTasks:1] 2012-10-30 20:06:27,077 Sto
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dioholic
android outofmemoryerror ormlite oom
I’m getting this error when trying to query up to 30 objects, each object has field byte[] which weights 100×100 ARGB_8888 bitmap data ~ 39kbI’m using OrmLite 4.45 version. Device – Samsung GT n8000 tablet (max heap size 64mb)here’s stacktrace:android.database.sqlite.SQLiteException: unknown error (code 0): Native could not create new byte[]at android.database.CursorWindow.nativeGetBlob(Native Method)at android.database.CursorWindow.getBlob(CursorWindow.java:403)at android.database.AbstractWindo