cas

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279 discussions

General setup questions
by Mike Moore 14 Nov '11

14 Nov '11

I'm struggling through getting my first cas instance setup and am having issues with what I think is related to SSH. Is there any documentation detailing how to setup users / ssh or how to setup cas in general? (other than what's on the wiki). Specifically, I'm trying to do a cas-admin -s to build my initial database (right). Using any other user than root here (although that appears to be "recommended") errors out. But to use root, I need to allow root ssh, create a key, etc... none of which is ideal, right? Also, even after doing that, I still get the error: [root@host1 .ssh]# cas-admin -s [.cas.] :: Building CAS Server DB instance. [.cas.][debug] :: Failed to connect to tchsacas01: Authentication failed. I can keep trying different things, but I feel like there's some critical piece of documentation I must be missing. Any guidance you can provide would be great. </pre> <P><hr size=1></P> <P><STRONG><font color=green>Please consider the environment before printing this email.</font></STRONG></P> <P><STRONG>Visit our website at <a href="http://www.nyse.com">http://www.nyse.com</a> <br> ***************************************************************************** <br> Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. </STRONG></P><pre>

2 1

feature request: output to file
by marc pascual 22 Jun '10

22 Jun '10

Hi Adam, Would be nice if cas can write to stdout or file, apart from sending email. Thanks! Marc

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Branch 'devel' - overseer/command.py
by Adam Stokes 27 May '10

27 May '10

overseer/command.py | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) New commits: commit 38839318610e70fa499645e9d12f6179d21699cf Author: adam stokes <astokes(a)fedoraproject.org> Date: Thu May 27 11:30:01 2010 -0400 conditional on status_query diff --git a/overseer/command.py b/overseer/command.py index fe50562..fa60728 100755 --- a/overseer/command.py +++ b/overseer/command.py @@ -102,10 +102,11 @@ class Root: session = Session() status_query = session.query(Job).filter_by(jobId=data['id']).first() logfile_m = "Log started." - logfile_path = str(status_query.path) - if os.path.isfile(logfile_path): - logfile = open(logfile_path) - logfile_m = logfile.readlines()[-1].strip('\n') + if status_query: + logfile_path = str(status_query.path) + if os.path.isfile(logfile_path): + logfile = open(logfile_path) + logfile_m = logfile.readlines()[-1].strip('\n') mytemplate = mylookup.get_template("status.html") session.close()

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Branch 'devel' - cas.spec
by Adam Stokes 27 May '10

27 May '10

cas.spec | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) New commits: commit e0e3c6018c8270ff37f652df6de6a68d32306db4 Author: adam stokes <astokes(a)fedoraproject.org> Date: Thu May 27 10:15:07 2010 -0400 1.1 release diff --git a/cas.spec b/cas.spec index 6660ecd..efc6581 100644 --- a/cas.spec +++ b/cas.spec @@ -2,7 +2,7 @@ Name: cas Summary: Tool to analyze and configure core file environment -Version: 1.0 +Version: 1.1 Release: 0%{?dist} Source0: https://fedorahosted.org/releases/c/a/cas/%{name}-%{version}.tar.gz License: GPLv3+ @@ -93,6 +93,11 @@ fi %config %{_initrddir}/cas-server %changelog +* Thu May 27 2010 Adam Stokes <ajs at redhat dot com> - 1.1 +- 1.1 release +- Multiprocess debug query dependant on X number of cpu +- Improved logging + * Tue May 20 2010 Adam Stokes <ajs at redhat dot com> - 1.0 - Create 1.0 release

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Branch 'devel' - cas.conf doc/genindex.html doc/index.html doc/objects.inv doc/search.html doc/searchindex.js doc/_sources README
by Adam Stokes 27 May '10

27 May '10

README | 470 +++++++++++++++++++++++++++++++++++++++++++++---- cas.conf | 2 doc/_sources/index.txt | 31 +++ doc/genindex.html | 10 - doc/index.html | 39 +++- doc/objects.inv | 2 doc/search.html | 10 - doc/searchindex.js | 2 8 files changed, 515 insertions(+), 51 deletions(-) New commits: commit 9a512da1dd23bcb5e5b66e7be68e45a2c8a7eb44 Author: adam stokes <astokes(a)fedoraproject.org> Date: Thu May 27 10:06:54 2010 -0400 doc updates diff --git a/README b/README index dc8ed76..c1fe7fa 100644 --- a/README +++ b/README @@ -1,49 +1,459 @@ -CAS.README +.. CAS documentation master file, created by + sphinx-quickstart on Wed May 6 22:44:40 2009. + You can adapt this file completely to your liking, but it should at least + contain the root `toctree` directive. -* Other documentation check the wiki http://fedorahosted.org/cas +Core Analysis System +==================== -Requirements +:Author: Adam Stokes +:Release: |release| +:Date: |today| -/etc/cas.conf - This needs to be modified with your directory specifics. -Comments in the conf file are pretty straight forward. +.. image:: cas_logo.png -A cas database needs to be prepared which houses all the build timestamps -of the debug kernels you wish to use. +Overview +-------- +CAS provides a user the ability to configure an environment for core analysis +quickly. All the hassles of matching kernel versions and machine architecture +types to core dumps are automatically detected and processed. -As root run: +Prerequisites +^^^^^^^^^^^^^ -# cas-admin -b +CAS needs at least **Python 2.6** to run. If running RHEL 6 it may require +the EPEL repo to be installed. Visit `EPEL <https://fedoraproject.org/wiki/EPEL>`_ +to enable this repository. -Build your server database: +``Note``: It is assumed (and untested) to run in python 2.4/2.5 as long as the +backported multiprocessing library is installed. Please +see `Multiprocessing backport <http://pypi.python.org/pypi/multiprocessing>`_ -# cas-admin -s +Other package requirements: -Running CAS +- python-urlgrabber +- python-sqlalchemy +- python-cherrypy +- python-simplejson +- python-mako -Once completed take a generated kernel dump and send it through cas: +The amount of storage needed can be determined base on the following +information: -# cas -i <ID> -f vmcore -m username(a)example.com +- The number of kernel debug packages needed +- How many core dumps will be processed. -The vmcore may be in the form of http/ftp (e.g. http://myhost.com/files/vmcore.tar.gz). +Typically it is recommended to have at least 1TB for cores and another 500GB for +the debuginfo packages. -The compression scheme for a vmcore should be in the form of one of the following: +Since analyzing cores requires the same architecture specific systems the core +was generated on there will need to be systems available of those same types +in order for analyzation to work properly. -# tar cvzf vmcore.tar.gz vmcore -# tar cvjf vmcore.tar.bz2 vmcore -# gzip vmcore -# bzip2 vmcore +.. _config-cas-conf: -or you may pass it an uncompressed vmcore. +Configuration - cas.conf +^^^^^^^^^^^^^^^^^^^^^^^^ -Please do not _double compress_! For example, do not do a gzip vmcore, -then a tar cvzf vmcore.tar.gz vmcore.gz as you will not gain anything -from this. CAS will also fail to detect the decompression type. +CAS comes with one main configuration file which is located at ``/etc/cas.conf``. +The overall contents of this file is shown below, further down we will break up +each section and describe its meaning:: -Once complete results should be emailed to the address specified or if -processed locally should be prepared for you to do further analyzation -within crash. + [settings] + casuser=root + sshkey=dss + kernels=/mnt/kernels + regexExcludeDir=*data*,*src* + # regexExcludeFile=*tmp* + regexType=posix-extended + rpmFilter=.*kerne.+-debuginfo-[0-9].*\.rpm + debugLevel=DEBUG + workDirectory=/cores/processed + smtphost=mail.example.com + database=/var/db/cas/cas.db + [maintenance] + purgeLimit=90 + autoPurge=Yes + [advanced] + # crash_32=/usr/local/i386/crash + # buffersize=None -If any problem occurs please check the log within -/your/core/processed_dir/identifier/identifier.log +``casuser``: (**Required**) User to run cas, recommended to run as someone other than root. + +``sshkey``: (**Required**) Used for ssh negotiation, these are generated with ``ssh-keygen``. + +``kernels``: (**Required**) Describes the location of where kernel-debuginfo packages are to be +stored. This can range anywhere from an nfs mount, samba share, local disk or +any other type of media the cas server can access. + +``regexExcludeDir``: Directories that may be within the search path that doesn't need to be +included. This is a shell format so globs like ``*/*/data`` are accepted. + +``regexExcludeFile``: Any files that need to be excluded from the search path. This is also +a shell format ``*/*/badfile.txt``. + +``regexType``: (**Required**) Defines the regex syntax to use within ``find``. Doing a +``man find`` and searching for regextype will give you the allowable syntaxes. + +``rpmFilter``: (**Required**) This is a emacs based regular expression which is essentially +passed to a find command to locate the various kernel-debuginfo packages defined +in ``kernels`` directive. + +``debugLevel``: As the name suggest it will set the debug level for CAS output. +Currently the only accepted values are ``DEBUG|INFO``. + +``workDirectory``: (**Required**) Defines where all processed cores will be placed. This mount +point will need to have the most storage assigned to it. Depending on how many +cores are processed in a given timeframe this area will fill up quickly. + +``smtphost``: If wanting output of CAS processing email to a certain address +this directive needs to be set. ``Note`` that the mail server should not +require smtp authentication. + +``database``: (**Required**) Define where the sqlite database will reside. ``Note`` the ``casuser`` +will need to have read/write access to this database. + +``purgeLimit``: Define amount of day(s) back wish to keep physical data on +system. + +``autoPurge``: Yes/No setting if wanting cas-admin to auto purge stale data on +each run. + +``crash_32``: Primarily used on x86_64 systems to process x86 cores. If x86 +version of crash is installed this directive can be set to the crash binary +and CAS will automatically process x86 cores on a x86_64 machine. ``Note`` this +is only available if the CAS server is a x86_64 machine. + +``buffersize``: Extend the read buffer when analyzing a core for a timestamp. +``Note`` this is normally needed for itanium cores, otherwise, the default is +fine. + +CAS - Overseer +---------- + +Description +^^^^^^^^^^^ +``Package name``: `cas-server` + +Web user interface to the core analysis system that allows a user to process cores +via http, ftp, or file protocols. Other features include ability to view a job's progress +and if needed re-schedule that job. + +Configure & Execution +^^^^^^^^^^^^^^^^^^^^^^^ + +This should run `out of the box` by typing:: + + # service cas-server start + +It will load a self contained http server located at **http://localhost:8112**. If the port +needs to be changed the `site.conf` is located ``/usr/share/cas/overseer/site.conf``. Under +the [global] section change `server.socket_port` to an appropriate port. + +CAS - Administration +-------------------- + +Description +^^^^^^^^^^^ +``Package``: `cas-admin` + +The administration application will build the necessary debug database in order +to match coredumps with the proper debugging kernel. In addition, this application +builds a list of accessible servers and their architecture for CAS to use in cases +where the host system is not suitable to process the core. + +Configure & Execution +^^^^^^^^^^^^^^^^^^^^^ + +The following options need to be set appropriately in ``/etc/cas.conf``, see :ref:`config-cas-conf`. + +- kernels +- rpmFilter + +Optionally: + +- regexExcludeFile +- regexExcludeDir +- regexType + +To populate the database run:: + + # cas-admin + +Once complete CAS will be able to match coredumps with kernel debugs. + +In order to query accessible CAS servers simply run:: + + # cas-admin --server + +If several systems are deployed for CAS to use, ssh keys must be setup between the host (CAS) and +the clients:: + + (cas-server) $ ssh-keygen -t dsa + Cas supports passwordless entries at this time. + (cas-server) $ ssh-copy-id -i ~/.ssh/id_dsa casuser(a)cas-client-system.com + +Please note that in order for cas to function properly it is required that only the cas +user on the system has only those entries in its ssh hostkey file that are accessible +with cas. Cas will error with ``Authentication Failed`` and exit cleanly if it runs +into any system that it can not communicate with. + +There are options to autopurge old/stale data, see :ref:`maintenance` + +CAS - Command Interface +----------------------- + +Description +^^^^^^^^^^^ +``Package``: `cas` + +The command line interface gives more flexibility to the administrator or user +when analyzing a core. The interface is what is used by all CAS components when +accessing anything core related. + +Execution +^^^^^^^^^ + +CAS prepares its directory hierarchy based on the ``identifier`` this option is +therefore required. ``filename`` is also required as it tells CAS exactly which +core to process and associate with ``identifier``. If wanting email results from +CAS simply pass it the email parameter. + +An example, of a user wanting to process a corefile named ``vmcore.12345``:: + + $ cas -i 12345 -f vmcore.12345 -e user(a)cas-server.com --job 1 + +In the above example an assumption is made that ``12345`` is associated to some +form of ticketing system so to keep things organized an identifier was set of +that number along with the ``job`` to be processed. + +The directory hierarchy for the current job should look like ``/cores/1/datetime``. +In addition to the processing of core files there is also a ``job.log`` contained +within this directory for each job processed. If multiple jobs for the same identifier +are issued they are placed within a sub directory marked by the current timestamp +and the relevant data associated with it. + +The last option worth mentioning is for core analyst who are needing to work +within the core that requires one of the kernel modules loaded during the crash. +This can be extracted by passing the ``modules`` parameter in the CAS execution +statement. ``Note`` the ``modules`` parameter is not heavily used but can be +useful when analyzing filesystem issues and the like. + +From this point on CAS will download, process, and email the results of its +initial analysis to the specified email address. From there further instructions +are provided in either the email or the ``job.log`` on how to access and analyze +the core. + +.. _maintenance: + +Maintenance +=========== + +Purging data +------------ +It is possible to purge old data to help with keeping storage capacity under control. The default +purge days is 90, however, this can be altered with the command:: + + # cas-admin -p -d 180 + +The above will then only purge data older than 180 days. + +Another possibility is to set the ``purgeLimit`` within the configuration file. + +Additional Tips +=============== + +Compressing Cores +----------------- + +To compress a file using ``xz`` run:: + + $ cas -f vmcore --compress + +Proxying cas-server through Apache +---------------------------------- + +Proxy **cas-server** through apache a vhost needs to be setup:: + + NameVirtualHost *:80 + + <VirtualHost *:80> + ServerAdmin casadmin(a)mydomain.com + DocumentRoot /var/www/cas + ServerName cas.mydomain.com + ErrorLog logs/cas-error_log + CustomLog logs/cas-access_log common + + <IfModule mod_proxy.c> + ProxyRequests On + ProxyPass / http://127.0.0.1:8112/ + ProxyPassReverse / http://127.0.0.1:8112/ + </IfModule> + </VirtualHost> + +``Note``: If running with SELinux enabled a problem may arise with permission +denied when accessing localhost through the proxy. To fix this issue run:: + + $ setsebool httpd_can_network_connect 1 + + +Analyzing +--------- + +Continuing with the previous example the results of CAS processing should be emailed +and look something similar to:: + + Subject: CAS results for 1 + Date: Tue, 06 May 2009 08:41:20 -0500 + + Location: Location: /cores/1/2009.05.06.08.41.20 + Server: x86_64.cas-server.com + Output data: + PID: 0 TASK: ffffffff803e9b80 CPU: 0 COMMAND: "swapper" + #0 [ffffffff8047a0a0] smp_call_function_interrupt at ffffffff8011d191 + #1 [ffffffff8047a0b0] call_function_interrupt at ffffffff80110bf5 + --- <IRQ stack> --- + #2 [ffffffff80529f08] call_function_interrupt at ffffffff80110bf5 + [exception RIP: default_idle+32] + RIP: ffffffff8010e7a9 RSP: ffffffff80529fb8 RFLAGS: 00000246 + RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000018 + RDX: ffffffff8010e789 RSI: ffffffff803e9b80 RDI: 0000010008001780 + RBP: 0000000000000000 R8: ffffffff80528000 R9: 0000000000000080 + R10: 0000000000000100 R11: 0000000000000004 R12: 0000000000000000 + R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 + ORIG_RAX: fffffffffffffffa CS: 0010 SS: 0018 + #3 [ffffffff80529fb8] cpu_idle at ffffffff8010e81c + + PID: 0 TASK: 100f57cb030 CPU: 1 COMMAND: "swapper" + #0 [1000107bfa0] smp_call_function_interrupt at ffffffff8011d191 + #1 [1000107bfb0] call_function_interrupt at ffffffff80110bf5 + --- <IRQ stack> --- + #2 [10001073e98] call_function_interrupt at ffffffff80110bf5 + [exception RIP: default_idle+32] + RIP: ffffffff8010e7a9 RSP: 0000010001073f48 RFLAGS: 00000246 + RAX: 0000000000000000 RBX: 0000000000000e86 RCX: 0000000000000018 + RDX: ffffffff8010e789 RSI: 00000100f57cb030 RDI: 00000102000a4780 + RBP: 0000000000000001 R8: 0000010001072000 R9: 0000000000000040 + R10: 0000000000000000 R11: 0000000000000008 R12: 0000000000000000 + R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 + ORIG_RAX: fffffffffffffffa CS: 0010 SS: 0018 + #3 [10001073f48] cpu_idle at ffffffff8010e81c + + PID: 6122 TASK: 101f3658030 CPU: 2 COMMAND: "gfs_quotad" + #0 [101f21efb20] start_disk_dump at ffffffffa03183ff + #1 [101f21efb50] try_crashdump at ffffffff8014cc1d + #2 [101f21efb60] die at ffffffff80111c90 + #3 [101f21efb80] do_invalid_op at ffffffff80112058 + #4 [101f21efc40] error_exit at ffffffff80110e1d + [exception RIP: do_dlm_lock+366] + + ... snip ... + +From this email a ``location`` is provided ``Location: /cores/1/2009.05.06.08.41.20`` +and the server in which further analyzation can be continued ``x86_64.cas-server.com``. + +Normally from a support perspective this email should contain enough information +for a kernel engineer to begin debugging the problem. Assuming more is needed +the information provided previously will prove beneficial for anyone wishing +to access this data. + +Logging into the stated server and changing into the directory defined several +files are presented:: + + $ pwd + Location: /cores/1/2009.05.06.08.41.20 + $ ls + 1.log crash crash.in crash.out usr vmcore.12345 log memory modules sys traceback + +``1.log``: contains any informational messages presented during the processing +of the core. Everything from informational to debug statements are provided here. + +``crash``: a script autogenerated to provide an automated way of gathering intial +data from the coredump. ``Note`` if wanting to use this crash wrapper in a more +manual approach some alterations to the script need to occur. + +crash wrapper in its original form:: + + #!/bin/sh + /usr/bin/crash \ + /cores/1/2009.05.06.08.41.20/vmcore.12345 \ + usr/*/*/*/*/2.6.9*largesmp/vmlinux $* + +``Note`` Running the crash wrapper manually will result in an interactive instance. + +**Alternative to using the crash wrapper** + +It is possible to specify the vmlinux and corefile with crash on the command line:: + + $ crash /cores/1/2009.05.06.08.41.20/usr/*/*/*/*/2.6.9*largesmp/vmlinux \ + /cores/1/2009.05.06.08.41.20/vmcore.12345 + +``crash.in``: a list of commands to be read into crash during the automated +analysis:: + + bt >> traceback + bt -a >> traceback + sys >> sys + sys -c >> sys + log >> log + mod >> modules + kmem >> memory + kmem -f >> memory + exit + +This can be extended by adding more snippets into ``/var/lib/cas/snippets``. Please see +that directory for examples. + +``crash.out``: output of initial crash analysis and the same data which +is sent in an email if defined. + +``usr``: directory structure from the extraction of the vmlinux file +from the associated kernel-debuginfo rpm for use within crash:: + + /cores/1/2009.05.06.08.41.20/ + usr/lib/debug/lib/modules/2.6.9-78.18.ELlargesmp/vmlinux + +``vmcore.12345``: corefile from which was either defined or extracted from +a compressed archive during CAS initialization. + +Troubleshooting +--------------- + +Some of the major problems that arise when using CAS usually boils down to some +improper usage of the compression and archiving tools. + +When compressing a core which may need to be sent over the network to a CAS server +one of the proper ways to do so is:: + + $ tar cvjf vmcore.12345.tar.bz2 vmcore.12345 + +Other various ways of compressing archive are as follows:: + + $ tar cvzf vmcore.tar.gz vmcore + $ gzip vmcore + $ bzip2 vmcore + $ xz vmcore + +``Note``: please do not double compress or CAS will fail. + +Another issue, which isn't primarily a fault of CAS, are +incomplete or corrupted cores. If either of these occur +there is a chance that CAS will not be able to process +the data needed to associate a debug kernel or do any +sort of automated analysis. Unfortunately, there is not +much that can be done to resolve these sort of issues +other than verifying that the process which happens when +a system coredump and when that dump reaches the +system specified for retrieval is solid and are seeing +no errors. + + +Resources +========= + +* `CAS Wiki <http://fedorahosted.org/cas>`_ +* `CAS FAQ <https://fedorahosted.org/cas/wiki/CasFAQ>`_ +* `Mailing list <https://fedorahosted.org/mailman/listinfo/cas>`_ +* `Upstream releases <https://fedorahosted.org/releases/c/a/cas/>`_ +* Checkout latest from Git, ``git clone git://git.fedorahosted.org/cas.git`` -Other documentation check the wiki http://fedorahosted.org/cas diff --git a/cas.conf b/cas.conf index b692b71..18df098 100644 --- a/cas.conf +++ b/cas.conf @@ -48,7 +48,7 @@ workDirectory=/cores smtphost=mail.example.com # database connection info -database=/var/tmp/cas.db +database=/var/db/cas.db # send notifications automatically notify=True diff --git a/doc/_sources/index.txt b/doc/_sources/index.txt index 5e72f86..dd33e7d 100644 --- a/doc/_sources/index.txt +++ b/doc/_sources/index.txt @@ -264,11 +264,39 @@ Additional Tips =============== Compressing Cores ----------------- +----------------- + To compress a file using ``xz`` run:: $ cas -f vmcore --compress +Proxying cas-server through Apache +---------------------------------- + +Proxy **cas-server** through apache a vhost needs to be setup:: + + NameVirtualHost *:80 + + <VirtualHost *:80> + ServerAdmin casadmin(a)mydomain.com + DocumentRoot /var/www/cas + ServerName cas.mydomain.com + ErrorLog logs/cas-error_log + CustomLog logs/cas-access_log common + + <IfModule mod_proxy.c> + ProxyRequests On + ProxyPass / http://127.0.0.1:8112/ + ProxyPassReverse / http://127.0.0.1:8112/ + </IfModule> + </VirtualHost> + +``Note``: If running with SELinux enabled a problem may arise with permission +denied when accessing localhost through the proxy. To fix this issue run:: + + $ setsebool httpd_can_network_connect 1 + + Analyzing --------- @@ -419,6 +447,7 @@ a system coredump and when that dump reaches the system specified for retrieval is solid and are seeing no errors. + Resources ========= diff --git a/doc/genindex.html b/doc/genindex.html index e5987d5..a5fa227 100644 --- a/doc/genindex.html +++ b/doc/genindex.html @@ -5,13 +5,13 @@ <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> - <title>Index — CAS v1.0 documentation</title> + <title>Index — CAS v1.1 documentation</title> <link rel="stylesheet" href="_static/default.css" type="text/css" /> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '#', - VERSION: '1.0', + VERSION: '1.1', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true @@ -19,7 +19,7 @@ </script> <script type="text/javascript" src="_static/jquery.js"></script> <script type="text/javascript" src="_static/doctools.js"></script> - <link rel="top" title="CAS v1.0 documentation" href="index.html" /> + <link rel="top" title="CAS v1.1 documentation" href="index.html" /> </head> <body> <div class="related"> @@ -28,7 +28,7 @@ <li class="right" style="margin-right: 10px"> <a href="#" title="General Index" accesskey="I">index</a></li> - <li><a href="index.html">CAS v1.0 documentation</a> »</li> + <li><a href="index.html">CAS v1.1 documentation</a> »</li> </ul> </div> @@ -78,7 +78,7 @@ <li class="right" style="margin-right: 10px"> <a href="#" title="General Index" >index</a></li> - <li><a href="index.html">CAS v1.0 documentation</a> »</li> + <li><a href="index.html">CAS v1.1 documentation</a> »</li> </ul> </div> <div class="footer"> diff --git a/doc/index.html b/doc/index.html index 2e8ee32..fbb25aa 100644 --- a/doc/index.html +++ b/doc/index.html @@ -5,13 +5,13 @@ <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> - <title>Core Analysis System — CAS v1.0 documentation</title> + <title>Core Analysis System — CAS v1.1 documentation</title> <link rel="stylesheet" href="_static/default.css" type="text/css" /> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '#', - VERSION: '1.0', + VERSION: '1.1', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true @@ -19,7 +19,7 @@ </script> <script type="text/javascript" src="_static/jquery.js"></script> <script type="text/javascript" src="_static/doctools.js"></script> - <link rel="top" title="CAS v1.0 documentation" href="#" /> + <link rel="top" title="CAS v1.1 documentation" href="#" /> </head> <body> <div class="related"> @@ -28,7 +28,7 @@ <li class="right" style="margin-right: 10px"> <a href="genindex.html" title="General Index" accesskey="I">index</a></li> - <li><a href="#">CAS v1.0 documentation</a> »</li> + <li><a href="#">CAS v1.1 documentation</a> »</li> </ul> </div> @@ -45,9 +45,9 @@ <tbody valign="top"> <tr class="field"><th class="field-name">Author:</th><td class="field-body">Adam Stokes</td> </tr> -<tr class="field"><th class="field-name">Release:</th><td class="field-body">1.0</td> +<tr class="field"><th class="field-name">Release:</th><td class="field-body">1.1</td> </tr> -<tr class="field"><th class="field-name">Date:</th><td class="field-body">May 21, 2010</td> +<tr class="field"><th class="field-name">Date:</th><td class="field-body">May 27, 2010</td> </tr> </tbody> </table> @@ -270,6 +270,30 @@ purge days is 90, however, this can be altered with the command:</p> <div class="highlight-python"><pre>$ cas -f vmcore --compress</pre> </div> </div> +<div class="section" id="proxying-cas-server-through-apache"> +<h2>Proxying cas-server through Apache<a class="headerlink" href="#proxying-cas-server-through-apache" title="Permalink to this headline">¶</a></h2> +<p>Proxy <strong>cas-server</strong> through apache a vhost needs to be setup:</p> +<div class="highlight-python"><pre>NameVirtualHost *:80 + +<VirtualHost *:80> + ServerAdmin casadmin(a)mydomain.com + DocumentRoot /var/www/cas + ServerName cas.mydomain.com + ErrorLog logs/cas-error_log + CustomLog logs/cas-access_log common + + <IfModule mod_proxy.c> + ProxyRequests On + ProxyPass / http://127.0.0.1:8112/ + ProxyPassReverse / http://127.0.0.1:8112/ + </IfModule> +</VirtualHost></pre> +</div> +<p><tt class="docutils literal"><span class="pre">Note</span></tt>: If running with SELinux enabled a problem may arise with permission +denied when accessing localhost through the proxy. To fix this issue run:</p> +<div class="highlight-python"><pre>$ setsebool httpd_can_network_connect 1</pre> +</div> +</div> <div class="section" id="analyzing"> <h2>Analyzing<a class="headerlink" href="#analyzing" title="Permalink to this headline">¶</a></h2> <p>Continuing with the previous example the results of CAS processing should be emailed @@ -450,6 +474,7 @@ no errors.</p> </li> <li><a class="reference external" href="#additional-tips">Additional Tips</a><ul> <li><a class="reference external" href="#compressing-cores">Compressing Cores</a></li> +<li><a class="reference external" href="#proxying-cas-server-through-apache">Proxying cas-server through Apache</a></li> <li><a class="reference external" href="#analyzing">Analyzing</a></li> <li><a class="reference external" href="#troubleshooting">Troubleshooting</a></li> </ul> @@ -485,7 +510,7 @@ no errors.</p> <li class="right" style="margin-right: 10px"> <a href="genindex.html" title="General Index" >index</a></li> - <li><a href="#">CAS v1.0 documentation</a> »</li> + <li><a href="#">CAS v1.1 documentation</a> »</li> </ul> </div> <div class="footer"> diff --git a/doc/objects.inv b/doc/objects.inv index 0540417..1aedcb9 100644 --- a/doc/objects.inv +++ b/doc/objects.inv @@ -1,3 +1,3 @@ # Sphinx inventory version 1 # Project: CAS -# Version: 1.0 +# Version: 1.1 diff --git a/doc/search.html b/doc/search.html index 228ae2b..d7e3692 100644 --- a/doc/search.html +++ b/doc/search.html @@ -5,13 +5,13 @@ <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> - <title>Search — CAS v1.0 documentation</title> + <title>Search — CAS v1.1 documentation</title> <link rel="stylesheet" href="_static/default.css" type="text/css" /> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '#', - VERSION: '1.0', + VERSION: '1.1', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true @@ -20,7 +20,7 @@ <script type="text/javascript" src="_static/jquery.js"></script> <script type="text/javascript" src="_static/doctools.js"></script> <script type="text/javascript" src="_static/searchtools.js"></script> - <link rel="top" title="CAS v1.0 documentation" href="index.html" /> + <link rel="top" title="CAS v1.1 documentation" href="index.html" /> </head> <body> <div class="related"> @@ -29,7 +29,7 @@ <li class="right" style="margin-right: 10px"> <a href="genindex.html" title="General Index" accesskey="I">index</a></li> - <li><a href="index.html">CAS v1.0 documentation</a> »</li> + <li><a href="index.html">CAS v1.1 documentation</a> »</li> </ul> </div> @@ -77,7 +77,7 @@ <li class="right" style="margin-right: 10px"> <a href="genindex.html" title="General Index" >index</a></li> - <li><a href="index.html">CAS v1.0 documentation</a> »</li> + <li><a href="index.html">CAS v1.1 documentation</a> »</li> </ul> </div> diff --git a/doc/searchindex.js b/doc/searchindex.js index e9fe264..a363f87 100644 --- 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1 0

Branch 'devel' - doc/index.rst
by Adam Stokes 26 May '10

26 May '10

doc/index.rst | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) New commits: commit 4aa7b30ab8378615682d6818e98fcbedb08e0a9c Author: adam stokes <astokes(a)fedoraproject.org> Date: Wed May 26 13:10:36 2010 -0400 updated tips on running through apache proxy diff --git a/doc/index.rst b/doc/index.rst index 5e72f86..dd33e7d 100644 --- a/doc/index.rst +++ b/doc/index.rst @@ -264,11 +264,39 @@ Additional Tips =============== Compressing Cores ----------------- +----------------- + To compress a file using ``xz`` run:: $ cas -f vmcore --compress +Proxying cas-server through Apache +---------------------------------- + +Proxy **cas-server** through apache a vhost needs to be setup:: + + NameVirtualHost *:80 + + <VirtualHost *:80> + ServerAdmin casadmin(a)mydomain.com + DocumentRoot /var/www/cas + ServerName cas.mydomain.com + ErrorLog logs/cas-error_log + CustomLog logs/cas-access_log common + + <IfModule mod_proxy.c> + ProxyRequests On + ProxyPass / http://127.0.0.1:8112/ + ProxyPassReverse / http://127.0.0.1:8112/ + </IfModule> + </VirtualHost> + +``Note``: If running with SELinux enabled a problem may arise with permission +denied when accessing localhost through the proxy. To fix this issue run:: + + $ setsebool httpd_can_network_connect 1 + + Analyzing --------- @@ -419,6 +447,7 @@ a system coredump and when that dump reaches the system specified for retrieval is solid and are seeing no errors. + Resources =========

1 0

Branch 'devel' - cas-server startup/cas-server
by Adam Stokes 25 May '10

25 May '10

cas-server | 2 +- startup/cas-server | 51 ++++++++++++++++++--------------------------------- 2 files changed, 19 insertions(+), 34 deletions(-) New commits: commit ae48b20c63030551a58643c00e18eb130a92e6f2 Author: adam stokes <astokes(a)fedoraproject.org> Date: Tue May 25 17:49:58 2010 -0400 initscripts working diff --git a/cas-server b/cas-server index 5d84b8b..d77ed8d 100755 --- a/cas-server +++ b/cas-server @@ -1,3 +1,3 @@ #!/bin/sh -exec python "/usr/share/cas/overseer/command.py" "$@" +python "/usr/share/cas/overseer/command.py" diff --git a/startup/cas-server b/startup/cas-server index ab420ca..deb1ee8 100755 --- a/startup/cas-server +++ b/startup/cas-server @@ -1,6 +1,6 @@ #!/bin/sh # -*- mode: sh; -*- -# cas-server Start/Stop the cas-server. +# cas-server Start/Stop the cas-server. # # chkconfig: 2345 90 60 # description: cas-server is the web frontend to CAS ( core analysis system ) @@ -25,27 +25,21 @@ prog="cas-server" [ -f /etc/cas.conf ] || exit 0 # bin -SERVER="/usr/share/cas/overseer/command.py" -LOCK_FILE="/var/lock/subsys/cas-server" +SERVER=/usr/share/cas/overseer/command.py +LOCK_FILE=/var/lock/subsys/cas-server RETVAL=0 -start () { +start() { echo -n "Starting $prog: " - status -p $LOCK_FILE $SERVER &> /dev/null - STATUS=$? - if [ $STATUS -eq 0 ]; then - echo -n "Cas server already running." - echo_failure - RETVAL=0 + daemon $SERVER 2> /dev/null + RETVAL=$? + if [ $RETVAL -eq 0 ]; then + success else - if [ $STATUS -eq 1 ]; then - echo -n "Stray lockfile, removing." - rm -f $LOCK_FILE - fi - daemon $SERVER - RETVAL=$? + failure fi + echo } stop() { @@ -53,24 +47,13 @@ stop() { RETVAL=$? if [ -f "$LOCK_FILE" ]; then killproc -p $LOCK_FILE $SERVER - sleep 1 RETVAL=$? - echo [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE - echo_success + success else - echo_failure + failure fi -} - -restart() { - stop - start -} - -status() { - status -p $LOCK_FILE $SERVER - RETVAL=$? + echo } case "$1" in @@ -81,13 +64,15 @@ case "$1" in stop ;; restart) - restart + stop + sleep 1 + start ;; status) - status + status $SERVER ;; *) - echo $"Usage: $0 {start|stop|status|restart|}" + echo $"Usage: $0 {start|stop|status|restart}" exit 1 esac exit $RETVAL

1 0

Branch 'devel' - cas-server overseer/command.py startup/cas-server
by Adam Stokes 25 May '10

25 May '10

cas-server | 2 - overseer/command.py | 3 ++ startup/cas-server | 65 ++++++++++++++++++++-------------------------------- 3 files changed, 29 insertions(+), 41 deletions(-) New commits: commit d81b76389efb986c892f3e527e62b26b9a7f68a1 Author: adam stokes <astokes(a)fedoraproject.org> Date: Tue May 25 15:25:49 2010 -0400 more work to daemonize cas-server properly diff --git a/cas-server b/cas-server index e85ea52..5d84b8b 100755 --- a/cas-server +++ b/cas-server @@ -1,3 +1,3 @@ #!/bin/sh -python /usr/share/cas/overseer/command.py +exec python "/usr/share/cas/overseer/command.py" "$@" diff --git a/overseer/command.py b/overseer/command.py index 53fcc8f..fe50562 100755 --- a/overseer/command.py +++ b/overseer/command.py @@ -24,6 +24,7 @@ if sys.version_info[:2] < (2,6): import os import cherrypy +from cherrypy.process.plugins import Daemonizer, PIDFile import simplejson from caslib.db import * from mako.template import Template @@ -137,6 +138,8 @@ class Root: def main(): root = Root() + Daemonizer(cherrypy.engine).subscribe() + PIDFile(cherrypy.engine, "/var/lock/subsys/cas-server").subscribe() cherrypy.config.update(current_dir + "/site.conf") cherrypy.tree.mount(root, '/', current_dir + "/site.conf") cherrypy.engine.start() diff --git a/startup/cas-server b/startup/cas-server index 81f158b..ab420ca 100755 --- a/startup/cas-server +++ b/startup/cas-server @@ -25,50 +25,42 @@ prog="cas-server" [ -f /etc/cas.conf ] || exit 0 # bin -CASSERVER="/usr/bin/cas-server" +SERVER="/usr/share/cas/overseer/command.py" +LOCK_FILE="/var/lock/subsys/cas-server" RETVAL=0 -getpid() { - pid=`ps -eo pid,comm | grep cas- | awk '{ print $1 }'` -} - start () { echo -n "Starting $prog: " - getpid - if [ -z "$pid" ]; then - $CASSERVER 2> /dev/null - RETVAL=$? - fi - if [ $RETVAL eq 0 ]; then - touch /var/lock/subsys/cas-server - echo_success - else + status -p $LOCK_FILE $SERVER &> /dev/null + STATUS=$? + if [ $STATUS -eq 0 ]; then + echo -n "Cas server already running." echo_failure + RETVAL=0 + else + if [ $STATUS -eq 1 ]; then + echo -n "Stray lockfile, removing." + rm -f $LOCK_FILE + fi + daemon $SERVER + RETVAL=$? fi - echo - return $RETVAL } stop() { echo -n "Stopping $prog: " - getpid RETVAL=$? - if [ -n "$pid" ]; then - killproc $pid - sleep 1 - getpid - if [ -z "$pid" ]; then - rm -f /var/lock/subsys/cas-server + if [ -f "$LOCK_FILE" ]; then + killproc -p $LOCK_FILE $SERVER + sleep 1 + RETVAL=$? + echo + [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE echo_success else echo_failure fi - else - echo_failure - fi - echo - return $RETVAL } restart() { @@ -77,14 +69,8 @@ restart() { } status() { - getpid - if [ -n "$pid" ]; then - echo "$prog is running ..." - else - RETVAL=1 - echo "$prog is stopped" - fi - return $RETVAL + status -p $LOCK_FILE $SERVER + RETVAL=$? } case "$1" in @@ -98,11 +84,10 @@ case "$1" in restart ;; status) - status $prog - ret=$? + status ;; *) echo $"Usage: $0 {start|stop|status|restart|}" - exit 2 + exit 1 esac -exit $? +exit $RETVAL

1 0

Branch 'devel' - cas.spec
by Adam Stokes 24 May '10

24 May '10

cas.spec | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) New commits: commit fdf3b9e4ad32ba0ade2cc7b21841c4f4148cca3f Author: adam stokes <astokes(a)fedoraproject.org> Date: Mon May 24 11:20:12 2010 -0400 spec changes for init.d diff --git a/cas.spec b/cas.spec index de99c42..6660ecd 100644 --- a/cas.spec +++ b/cas.spec @@ -42,9 +42,7 @@ Requires: cas-admin = %{version}-%{release} Requires: python-cherrypy Requires: python-simplejson Requires: python-mako -Requires(post): /sbin/chkconfig -Requires(preun): /sbin/chkconfig -Requires(preun): /sbin/service +Requires(post): chkconfig %description server Provides web frontend to CAS to allow for a much simpler user experience when @@ -65,12 +63,11 @@ for i in `find ${RPM_BUILD_ROOT} -iname Makefile`; do rm $i; done rm -rf ${RPM_BUILD_ROOT} %post -/sbin/chkconfig --add %{name} +/sbin/chkconfig --add %{name}-server %preun if [ $1 = 0 ]; then - /sbin/service %{name} stop > /dev/null 2>&1 - /sbin/chkconfig --del %{name} + /sbin/chkconfig --del %{name}-server fi %files

1 0

Branch 'devel' - cas.spec startup/Makefile
by Adam Stokes 24 May '10

24 May '10

cas.spec | 3 +-- startup/Makefile | 4 ++-- 2 files changed, 3 insertions(+), 4 deletions(-) New commits: commit 41ea187e81e4b37c7a818c548eda8c8befb9086e Author: adam stokes <astokes(a)fedoraproject.org> Date: Mon May 24 11:16:39 2010 -0400 initd setup diff --git a/cas.spec b/cas.spec index 7f12411..de99c42 100644 --- a/cas.spec +++ b/cas.spec @@ -1,5 +1,4 @@ %{!?python_sitelib: %define python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")} -%global _initdir %{_sysconfdir}/rc.d/init.d Name: cas Summary: Tool to analyze and configure core file environment @@ -94,7 +93,7 @@ fi %defattr(-,root,root,-) %{_datadir}/%{name}/overseer %{_bindir}/cas-server -%{_initdir}/cas-server +%config %{_initrddir}/cas-server %changelog * Tue May 20 2010 Adam Stokes <ajs at redhat dot com> - 1.0 diff --git a/startup/Makefile b/startup/Makefile index 9788846..ccb93bf 100644 --- a/startup/Makefile +++ b/startup/Makefile @@ -6,5 +6,5 @@ clean: echo "clean" install: - mkdir -p $(DESTDIR)/etc/init.d - install -p -m755 $(NAME) $(DESTDIR)/etc/init.d/. + mkdir -p $(DESTDIR)/etc/rc.d/init.d + install -p -m755 $(NAME) $(DESTDIR)/etc/rc.d/init.d/.

1 0

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