So basically in our case the server goes down mysteriously and we often restart it and it starts to work fine. Till now we haven't been able to establish a pattern. Looking at thread dump did help but we want to analyse memory usage too. Can these tools be set up to run at regular intervals (so they keep saving snapshots at regular intervals) or whenever it detects an exception or crash
Can I set up profiles like jhat or jmap to take snapshots at regular intervals or whenever exception is detected
209 views Asked by Smiles in a Jar At
2
There are 2 answers
0
Fakrudeen
On
run jmap in a cron?
Another option is to attach jdb to the process. It will stop on uncaught exception and you can take a heap dump using jmap in that state. Unfortunately jdb itself doesn't support taking a heap dump.
Related Questions in JMAP
- Borrow mutable and immutable reference in the same block
- Linking to a static lib compiled with MSVC
- Using a no-method trait implementation in a different module
- No error for two traits implementing the same method
- How are the generic functions and types stored in an rlib?
- Is it possible to find an element in a Vec<T> and remove it?
- What does & actually do?
- unresolved name rand::thread_rng
- Use of undeclared type that is defined in another file
- Creating byte buffers in rust
Related Questions in JHAT
- Borrow mutable and immutable reference in the same block
- Linking to a static lib compiled with MSVC
- Using a no-method trait implementation in a different module
- No error for two traits implementing the same method
- How are the generic functions and types stored in an rlib?
- Is it possible to find an element in a Vec<T> and remove it?
- What does & actually do?
- unresolved name rand::thread_rng
- Use of undeclared type that is defined in another file
- Creating byte buffers in rust
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
It won't produce a complete dump, but
jstat
can be run continuously to provide sumamry statistics of memory over time at regular intervals:for instance, will produce memory pool and garbage collection statistics every minute until you kill it with
Ctrl-C
.jstat
can do a lot more than memory and garbage collection. See the jstat manpage for more information:http://docs.oracle.com/javase/6/docs/technotes/tools/share/jstat.html