Search Results

Search found 2088 results on 84 pages for 'jobs'.

Page 10/84 | < Previous Page | 6 7 8 9 10 11 12 13 14 15 16 17  | Next Page >

  • background jobs and ssh connections

    - by petrelharp
    This question has come up quite a lot (really a lot), but I'm finding the answers to be generally incomplete. The general question is "Why does/doesn't my job get killed when I exit/kill ssh?", and here's what I've found. The first question is: How general is the following information? The following seems to be true for modern Debian linux, but I am missing some bits; and what do others need to know? All child processes, backgrounded or not of a shell opened over an ssh connection are killed with SIGHUP when the ssh connection is closed only if the huponexit option is set: run shopt huponexit to see if this is true. If huponexit is true, then you can use nohup or disown to dissociate the process from the shell so it does not get killed when you exit. If huponexit is false, which is the default on at least some linuxes these days, then backgrounded jobs will not be killed on normal logout. But even if huponexit is false, then if the ssh connection gets killed, or drops (different than normal logout), then backgrounded processes will still get killed. This can be avoided by disown or nohup as in (2). There is some distinction between (a) processes whose parent process is the terminal and (b) processes that have stdin, stdout, or stderr connected to the terminal. I don't know what happens to processes that are (a) and not (b), or vice versa. Final question: How can I avoid behavior (3)? In other words, by default in Debian backgrounded processes run along merrily by themselves after logout but not after the ssh connection is killed. I'd like the same thing to happen to processes regardless of whether the connection was closed normally or killed. Or, is this a bad idea?

    Read the article

  • Scheduling jobs from a web environment on Linux

    - by Anders Feder
    Hi. I am developing an application in PHP on Linux/Apache. I want to be able to schedule PHP jobs (scripts) for execution at some specific time in the future from within the application. I know that many people will recommend cron and at, but first of all I don't need recurrence (cron) and secondly and most importantly, I need the solution to be able to scale. At was not designed with race condititions in mind, and if two users try to add a job at the same time one or both may fail. It's also important that jobs are executed at their specified time, and not just 'polled' once per minute or so. Can anyone please suggest solutions for this task? Thank you.

    Read the article

  • php cron jobs overlapping

    - by naveen gupta
    Hi I wrote few months back a script in perl for checking overlapping of jobs use Fcntl ':flock'; INIT { my $waitcount=12; # possible attemtps to run script my $waitseconds=300; # wait for $waitseconds each attempt my $lockstatus=0;#no lock was attained while ($waitcount > 0){ if (open LH, $0){ while ($waitcount > 0){ if (flock LH, LOCK_EX|LOCK_NB){ $waitcount=0;#signal end of waiting $lockstatus=1;#lock was attained } else{ --$waitcount;#decrement waitcount print "waiting to be able to lock $0\n"; sleep $waitseconds; }#end else }#end while }#end if else{ --$waitcount;#decrement waitcount print "waiting to be able to open $0\n"; sleep $waitseconds; }#end else }#end while if ($lockstatus == 0){ die "no lock was attained\n"; }#end if } I wanted to know if we can do similar thing in php .. How to integrate with your current php code which is running a part of php jobs?

    Read the article

  • Developing Job References

    - by Joe Smith
    How do you develop references for jobs? I have 6 years of programming experience spanning two jobs, but sadly I don't have a lot of people I can draw on as references. It's been several years since I left my last job, which was at a small company, and I've lost touch with the few people I knew there. I now work at another small company. I think I've gone as far as I can in my current position, and would like to look for greener pastures, but I can't exactly use my current boss as a reference, even though I have a very good repore with him. I'm sure he'd make a great reference down the road, but I'm afraid I'd insult him or jeopardize my current job by mentioning that I'm thinking of leaving and would like him to help me. I've applied to some jobs, and I have gotten several replies like, "Oh, you're exactly what we're looking for. Send us a couple references and we'll schedule an interview. Oh, no references? You must be a psychopath, nevermind." I've tried doing some small freelance work on the side, just so I can have a contact who can vouch for my work, but the competition for even small projects is pretty fierce and I can rarely devote adequate time to freelancing while holding a full time job. In addition, I often encounter a Catch-22 where a lot of freelancing jobs also require references. So how do programmers maintain existing references and develop new ones, especially while holding a full time job?

    Read the article

  • How to find an entry-level job after you already have a graduate degree?

    - by Uri
    Note: I asked this question in early 2009. A couple of months later, I found a great job. I've previously updated this question with some tips for whoever ends up in a similar situation, and now cleaned it up a little for the benefit of the fresh batch of graduates. Original post: In my early 20s I abandoned a great C++ development career path in a major company to go to graduate school and get a research masters (3 years). I did another year in industrial research, and then moved to the US to attend graduate school again, getting another masters and a Ph.D in software engineering from a top school (another 6 years down the drain). I was coding the whole way throughout my degrees (core Java and Eclipse plug-ins) and working on research related to software engineering (usability of APIs). I ended up graduating the year of the recession, with a son on the way and the prospects of no healthcare. Academic jobs and industrial research jobs are quite scarce. Initially, I was naive, thinking that with my background, I could easily find a coding job. Big mistake. It turns out that I'm in a complicated position. Entry level positions are usually offered to college undergraduates. I attended my school's career fairs, but you could immediately see signs of Ph.D. aversion and overqualification issues. Some of the recruiters I spoke with explicitly told me that they wanted 20 year olds with clean slates, and some were looking for interns since they are in various forms of hiring freezes. I managed to get a couple of interviews from these career fairs and through recruiters. However, since I've been out of school for a long time and programming primarily in Java, I am also no longer proficient in C/C++ and the usual range of college-level interview questions that everyone uses. I had no problems with this when I was 19 and interviewing for my first job since a lot of what you do in C is manipulate pointers and I was coding C++ for fun and for school. Later I was routinely doing pointer manipulation on the job, and during my first masters taught college courses with data structures and C++. But even though I remember many properties of C++ well, it's been close to ten years since I regularly used C++ and pointers. As a Java developer I rarely had to work at this level, but experience in OOD and in writing good maintainable code is meaningless for C++ interviews. Reading books as a refresh and looking at sample code did not do the trick. I also looked at mid-to-senior level Java positions, but most of them focused on J2EE APIs rather than on core Java and required a certain number of years in industrial positions. Coding research tools and prior C++ experience doesn't count. So that sends me back to entry-level jobs that are posted through job-boards, and these are not common (mostly they are Monster junk), and small companies are even less likely to answer a Ph.D. compared to the giants who participate in top-10 career fairs. Even worse, in many companies initial screening is done by HR folks who really don't want to deal with anything anomalous like a Ph.D. Any tips on how I should approach this intractable position? For example, what should I write in cover letters? Note that while immigration is not an issue for me, I cannot go freelance as I need the benefits (and in particular group health insurance). During my studies I had no time to contribute to open-source projects or maintain a popular blog, so even if I invested in that now there would be no immediate benefit. Updates: In the two months after posting this I received several offers to work as a core Java developer in the financial industry and accepted one from a firm where I am working to this day. For those who find themselves in similar situations, here are my tips: Give up on trying to find an entry level positions. You can't undo time. Accept the fact that there is Ph.D. discrimination in the job market (some might say rightfully so). It is legal to discriminate based on education. No point fighting it. The most important tip is to focus on the language you are comfortable with. The sad truth about programming in a particular language is that it is not like riding a bike. If you haven't used a language in the last few years, and can't actually apply it routinely (not just as a refresher) before you start your search, it is going to be very difficult to do well in an interview. Now that I'm interviewing others, I routinely see it in folks with a mixed C++/Java background. We maintain "a shadow" of the old language but end up with a weird mix that makes it hard to interview on either. Entry-level folks are at an advantage here since they usually have one language. Memory can help you do great in a screening interview, but without recent day-to-day experience, code tests will be difficult. Despite the supposed relation, core Java programming and J2EE programming are two different things with different skillsets. If you come from academia, you likely have very little J2EE experience and may find it hard to get accepted for a J2EE job. J2EE jobs seem to have a larger list of acronyms in their requirements. In addition, from interviewing J2EE developers it seems that for many there is a focus on mastering specific APIs and architectures, whereas core Java development tends to be secondary. In the same way that I can no longer manipulate pointers well, a J2EE developer may have difficulties doing low level Java manipulation. This puts you at a relative advantage in competing for core Java jobs! If you are able to work for startups (in terms of family life and stability) or migrate to startup-rich areas such as the west coast, you can find many exciting opportunities where advanced degrees are a benefit. I've since been approached by several startups, although I had to decline. Work through a recruiter if possible. They have direct contacts with the hiring parties, allowing you to "stand out". It is better to get a clear yes/no confirmation from a recruiter on whether a company might be interested in interviewing you, than it is to send your resume and hope that someone will ever see it. Recruiters are also a great way of bypassing HR. However, also beware of recruiters. They have a vested interest and will go to various shady practices and pressure tactics. To find a good recruiter, talk to a friend who declined a job offer he got through a recruiter. A good recruiter, to me, is measured in how they handle that. Interview for the jobs that require your core strength. If you're rusty or entirely unfamiliar with a technology around which the job revolves, you're probably not a good match. Yes, you probably have the talent to master them, but most companies would want "instant gratification". I got my offers from companies that wanted core Java developer. I didn't do well on places that wanted advance C++ because I am too rusty and not up to date on recent libraries. I also didn't hear from companies that wanted lots of J2EE experience, and that's ok. Finding companies that want core Java without web is harder, but exists in specific industries (e.g., finance, defense). This requires a lot more legwork in terms of search, but these jobs do exist. There are different interview styles. Some companies focus on puzzles, some companies focus on algorithms, and some companies focus on design and coding skills. I had the most success in places where the questions were the most related to the function I would have been performing. Pick companies accordingly as well.

    Read the article

  • How to avoid becoming a programmer while still beign closely involved with computer science/Industry

    - by WeShallOvercome
    I am studying computer science (A masters at an Ivy league), however most of the jobs i find involve way too much of programming. And frankly programming is not an issue, however programming without a meaning (read financial institution (non trading), other non mainstream jobs) bore me to death! I dont want to end up becoming a .NET,C#, Java kind of programmer. Can someone tell where i should look for jobs if i wish to do some real computer science work such as Machine Learning etc. I don't mind programming but becoming a Financial Software dev at Bloomeberg or an SDET at Microsoft isn't actually one of my goals. [note: I have interviewed for intern both positions listed above, and thankfully i got an intern for a data mining position in a top 750 Alexa rank web company] Sorry if angered anyone with a subjective question

    Read the article

  • "no such file to load -- treetop/runtime" running "rake jobs:work"

    - by Ryan Marshall
    when i try and run the "rails server" or "rake jobs:work" i get the error: "no such file to load -- treetop/runtime" full trace: macbook-pro-2:domain ryan$ rake jobs:work --trace(in /Applications/htdocs/domain) rake aborted! no such file to load -- treetop/runtime /opt/local/lib/ruby/gems/1.8/gems/mail-2.2.14/lib/mail.rb:68:in require' /opt/local/lib/ruby/gems/1.8/gems/mail-2.2.14/lib/mail.rb:68 /opt/local/lib/ruby/gems/1.8/gems/mail-2.2.14/lib/mail.rb:61:ineach' /opt/local/lib/ruby/gems/1.8/gems/mail-2.2.14/lib/mail.rb:61 /opt/local/lib/ruby/gems/1.8/gems/delayed_job-2.1.2/lib/delayed/performable_mailer.rb:1:in require' /opt/local/lib/ruby/gems/1.8/gems/delayed_job-2.1.2/lib/delayed/performable_mailer.rb:1 /opt/local/lib/ruby/gems/1.8/gems/delayed_job-2.1.2/lib/delayed_job.rb:5:inrequire' /opt/local/lib/ruby/gems/1.8/gems/delayed_job-2.1.2/lib/delayed_job.rb:5 /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in require' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:inrequire' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in each' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:inrequire' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in each' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:inrequire' /opt/local/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler.rb:112:in require' /ApApplications/htdocs/domain/config/application.rb:7 /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:ingem_original_require' /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in require' /Applications/htdocs/domain/Rakefile:4 /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:inload' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:in raw_load_rakefile' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2017:inload_rakefile' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2016:inload_rakefile' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2000:in run' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:instandard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in run' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 /opt/local/bin/rake:19:inload' /opt/local/bin/rake:19 in my Gemfile i have: "gem 'delayed_job'"

    Read the article

  • Task Scheduler permissions error for some jobs

    - by MaseBase
    I have recently moved to a 64-bit Windows Server 2008 R2. I setup my Scheduled Tasks to run under one user (TaskUser) specifically created for the scheduler and most run just fine. However some of them do not run under TaskUser but will for my own credentials. Here is the Event Log entry I found, which from my research points me to believe that it doesn't have permissions, but it does. It also has the option "Run with highest privileges" checked on. I have seen this particular checkbox work wonders on some tasks, but I have a number of them that it's not helping for. The error is ERROR_ELEVATION_REQUIRED but the user is a member of the administrators group and has folder/file permission and is set to "Run with highest privileges" Log Name: Microsoft-Windows-UAC/Operational Source: Microsoft-Windows-UAC Date: 4/27/2010 2:21:44 PM Event ID: 1 Task Category: (1) Level: Error Keywords: User: LIVE\TaskUser Computer: www2 Description: The process failed to handle ERROR_ELEVATION_REQUIRED during the creation of a child process. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-UAC" Guid="{E7558269-3FA5-46ED-9F4D-3C6E282DDE55}" /> <EventID>1</EventID> <Version>0</Version> <Level>2</Level> <Task>1</Task> <Opcode>0</Opcode> <Keywords>0x8000000000000000</Keywords> <TimeCreated SystemTime="2010-04-27T21:21:44.407053800Z" /> <EventRecordID>19</EventRecordID> <Correlation /> <Execution ProcessID="2460" ThreadID="5960" /> <Channel>Microsoft-Windows-UAC/Operational</Channel> <Computer>www2</Computer> <Security UserID="S-1-5-21-4017510424-2083581016-1307463562-1640" /> </System> <EventData></EventData> </Event> The errors shown in the Task Scheduler History tab display these results and states This operation requires an interactive window station. (0x800705B3) EventID 103 Task Scheduler failed to launch action "F:\App\Path\ConsoleApp.exe" in instance "{1a6d3450-b85a-40c0-b3db-72b98c1aa395}" of task "\taskFolder\taskName". Additional Data: Error Value: 2147943859. EventID 203 Task Scheduler failed to start instance "{1a6d3450-b85a-40c0-b3db-72b98c1aa395}" of "\taskFolder\taskName" task for user "LIVE\TaskUser" . Additional Data: Error Value: 2147943859.

    Read the article

  • SQL Server 2005 jobs running twice in a row - using LiteSpeed

    - by Malnizzle
    Howdy! I have a SQL server (2005) backing up to a network share, who has a group of maintenance plans setup through LiteSpeed to backup different DBs. They were just set up to run two sub plans on different schedules for full/diff backups and did that just fine for a couple of months. Then I added "Clean Up" task to the subplans. Ever since that point, the backup creates another bak right after the first bak job is completed. I removed the clean up item from the subplan, and it still creates two baks when ran. Both the SQL Activity Monitor and the machine's windows application log show just one job being executed. I did this same thing to a couple of other servers backing up to the same location, and they are behaving correctly. Thoughts?

    Read the article

  • Group readable cron jobs a security risk?

    - by Ibrahim
    Hi, I was just wondering, is using a cron job that is group readable a security risk? In this case, the script is chmod 755, and the group is basically a group of the sysadmins on the machine. The permissions seem to be fine, but I'm just wondering whether it's a bad idea to keep this script in a group or world readable place because it's a backup script that needs to be run as root. Thanks!

    Read the article

  • Parallel Environment (PE) on Sun Grid Engine (6.2u5) won't run jobs: "only offers 0 slots"

    - by Peter Van Heusden
    I have Sun Grid Engine set up (version 6.2u5) on a Ubuntu 10.10 server with 8 cores. In order to be able to reserve multiple slots, I have a parallel environment (PE) set up like this: pe_name serial slots 999 user_lists NONE xuser_lists NONE start_proc_args /bin/true stop_proc_args /bin/true allocation_rule $pe_slots control_slaves FALSE job_is_first_task TRUE urgency_slots min accounting_summary FALSE This is associated with the all.q on the server in question (let's call the server A). However, when I submit a job that uses 4 threads with e.g. qsub -q all.q@A -pe serial 4 mycmd.sh, it never gets scheduled, and I get the following reasoning from qstat: cannot run in PE "serial" because it only offers 0 slots Why is SGE saying "serial" only offers 0 slots, since there are 8 slots available on the server I specified (server A)? The queue in question is configured thus (server names changed): qname all.q hostlist @allhosts seq_no 0 load_thresholds np_load_avg=1.75 suspend_thresholds NONE nsuspend 1 suspend_interval 00:05:00 priority 0 min_cpu_interval 00:05:00 processors UNDEFINED qtype BATCH INTERACTIVE ckpt_list NONE pe_list make orte serial rerun FALSE slots 1,[D=32],[C=8], \ [B=30],[A=8] tmpdir /tmp shell /bin/sh prolog NONE epilog NONE shell_start_mode posix_compliant starter_method NONE suspend_method NONE resume_method NONE terminate_method NONE notify 00:00:60 owner_list NONE user_lists NONE xuser_lists NONE subordinate_list NONE complex_values NONE projects NONE xprojects NONE calendar NONE initial_state default s_rt INFINITY h_rt 08:00:00 s_cpu INFINITY h_cpu INFINITY s_fsize INFINITY h_fsize INFINITY s_data INFINITY h_data INFINITY s_stack INFINITY h_stack INFINITY s_core INFINITY h_core INFINITY s_rss INFINITY h_rss INFINITY s_vmem INFINITY h_vmem INFINITY,[A=30g], \ [B=5g]

    Read the article

  • Jobs with anacron won't run

    - by mareser
    I would like to run two bash scripts daily using anacron in order to backup some data. Unfortunately I can't figure out why said scripts are not executed. For test purposes I let cron execute the scripts and it worked fine. cat /etc/anacrontab gives # /etc/anacrontab: configuration file for anacron # See anacron(8) and anacrontab(5) for details. SHELL=/bin/sh PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin # These replace cron's entries 1 5 cron.daily nice run-parts --report /etc/cron.daily 7 10 cron.weekly nice run-parts --report /etc/cron.weekly @monthly 15 cron.monthly nice run-parts --report /etc/cron.monthly 1 5 TB_bak /bin/sh /home/vasco2/Dropbox/Scripts/backup_TB.sh 1 5 key_db_bak /bin/sh /home/vasco2/Dropbox/Scripts/bak_key_db.sh The output of ls ~/Dropbox/Scripts/ is backup_TB.sh bak_key_db.sh I use Linux Mint Katya. uname -a gives Linux vasco2 2.6.38-8-generic-pae #42-Ubuntu SMP Mon Apr 11 05:17:09 UTC 2011 i686 i686 i386 GNU/Linux I would be very happy if somebody could point me in the right direction on why those scripts won't get executed. P.S.: There is no anacron tag on superuser.com. Maybe somebody wants to change that.

    Read the article

  • Sendmail Tuning For Batch Mail Jobs

    - by Kyle Brandt
    I have a webservers that send out emails to a sendmail relay server as a batch job. The emails need to be accepted by the relay sendmail server as fast as possible, however, they do not need to go out (be relayed) very quickly. I am seeing a couple timeouts once and a while from the webserver trying to connect to the relay server. The load currently is about 30 emails a second for a couple minutes. There are quite a few tuning options for sendmail in the sendmail tuning guide. What I am focusing on now is the Delivery Mode: Delivery Mode There are a number of delivery modes that sendmail can operate in, set by the DeliveryMode ( d) configuration option. These modes specify how quickly mail will be delivered. Legal modes are: i deliver interactively (synchronously) b deliver in background (asynchronously) q queue only (don't deliver) d defer delivery attempts (don't deliver) There are tradeoffs. Mode i gives the sender the quickest feedback, but may slow down some mailers and is hardly ever necessary. Mode b delivers promptly but can cause large numbers of processes if you have a mailer that takes a long time to deliver a message. Mode q minimizes the load on your machine, but means that delivery may be delayed for up to the queue interval. Mode d is identical to mode q except that it also prevents lookups in maps including the -D flag from working during the initial queue phase; it is intended for ``dial on demand'' sites where DNS lookups might cost real money. Some simple error messages (e.g., host unknown during the SMTP protocol) will be delayed using this mode. Mode b is the usual default. If you run in mode q (queue only), d (defer), or b (deliver in background) sendmail will not expand aliases and follow .forward files upon initial receipt of the mail. This speeds up the response to RCPT commands. Mode i should not be used by the SMTP server. I currently have the CentOS default modes: Sendmail.cf: DeliveryMode=background Submit.cf: DeliveryMode=i Is sendmail.cf/mc for outgoing email from relay (to the intertubes) and sumbit.cf/mc for incoming eamil (from my webservers). Would it make sense to change the outgoing delivery mode to queue? If I did, what would the outbound email flow behave like? If this is the right thing to do, can anyone show me example mc configurations for this change? If it isn't, what recommendations are there for these constraints?

    Read the article

  • Avoiding syslog-ng noise from cron jobs [closed]

    - by Eyal Rozenberg
    Possible Duplicate: How can I prevent cron from filling up my syslog? On my small Debian squeeze web server, I have syslog-ng installed. Generally, my logs are nice and quiet, with nice -- MARK -- lines. My syslog, however, is littered with this Sep 23 23:09:01 bookchin /USR/SBIN/CRON[24885]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete > /dev/null) Sep 23 23:09:01 bookchin /USR/SBIN/CRON[24886]: (root) CMD ( [ -d /var/lib/php4 ] && find /var/lib/php4/ -type f -cmin +$(/usr/lib/php4/maxlifetime) -print0 | xargs -r -0 rm > /dev/null) Sep 23 23:17:01 bookchin /USR/SBIN/CRON[24910]: (root) CMD ( cd / && run-parts /etc/cron.hourly) kind of garbage. What's the clean way to avoid it?

    Read the article

  • Scheduled Jobs during hours of autumn time change

    - by NealWalters
    I'm wondering how other people deal with this scenario. What if you have a job scheduled to run at 1:30 am. In the autumn, when time changes, the hour of 1:00:00 to 1:59:59 repeats itself and so that job would run twice. Could be Windows Task Scheduler, SQL Agent or any other scheduling tool. Most of these tools seem to be based on machine time, not UTC time. If I told it to run the job at UTC time each night, then I wouldn't have the duplicate hour issue.

    Read the article

  • Queue'ing cron jobs up to 10 times

    - by webnoob
    Hi All, This kind of touches on another post I made but is different so I have posted it as a new question. I have a script that runs that may take just over 1 minute to process, and my cron is set to run every minute. I can stop another cron job executing the script if the first one hasn't finished by using flock (php) in the file, however, this means that I would lose one iteration of the routine and have to wait nearly a minute before it is triggered again (as my understanding leads me to believe). What I would like to do is if the script is locked, not bomb out, but wait. Over time however, this could get quite high so I would also like to limit the amount of queued cron's to 10. I am a real newbie with Linux (had a Linux VPS for 3 days now) so I am not sure if my solution is even practical. Thanks.

    Read the article

  • Is there any way to distribute x264 encoding jobs across multiple computers (to increase the encodin

    - by Breakthrough
    Does anyone know of a current, active solution to encoding x264 videos across many computers (via the network) to increase encoding FPS? I heard in the past of the project x264farm; unfortunately, it is not actively developed anymore, and isn't compatible with newer x264 builds. I'm looking for a current solution, which is compatible with newer builds of x264. Just to note this, I'm a Windows user, so I'm only looking for Windows solutions (or at the very least, Linux). I've also seen the ELDER distributed encoder, but the quality varies depending on the settings you use - I'd prefer a solution similar to x264farm as noted above (the documentation outlines the encoding process), but one that is compatible with new(er) x264 builds, and is preferably actively developed. Final Edit: Unfortunately, the bounty for this question has expired, and I haven't found a decent solution for this. So if at any time someone finds a new, distributed encoding solution for x264 (or any h.264 coded, for that matter) - please answer this question! I'd love to discover an ideal method to make this work!

    Read the article

  • 4.4.1 Timeout in 10 minute intervals SMTP on batch email jobs

    - by TEEKAY
    I am running a job that uses SMTP and it can run in excess of an hour, emailing the entire time. It's not my code but a workflow based app so I just get a form to configure the mail server, subj, msg, etc and can't see it's implementation. I know it is .NET and SmtpClient. I have been seeing 4.4.1 timeouts every 10 minutes being reported by the application as the response from the server. The # of emails in those 10 minute sessions are variable, between 100 and below 150 which leads me to ask about the 10 minute timeout time specifically. I have found there are several exchange properties (though I don't know what version they are running) that set timeout limits. (http://technet.microsoft.com/en-us/library/bb232205%28v=exchg.150%29.aspx) Would those values for ConnectionInactivityTimeOut and ConnectionTimeout be the controlling the timeouts? and finally I would like to ask if exchange considers the consistent connection(s) it kept receiving from the same source as one continuous connection and cause the timeout each 10 minutes and cause the timeout? I am using a static ip of the mail server. Thanks if anyone can shed any light on my problem. EDIT - It is my belief that the library is just keeping the connections around and isn't wrapped in any cleanup code or using statement. That said, I still haven't made any progress on this issue in the last year and just requeue the failed ones as I see them.

    Read the article

  • Cron Jobs unable to deliver email error report

    - by root
    I am sure I have right syntax and I am still unable to receive report emails to my email address. My OS is CentOS 6.4. My Crontab script is MAILTO="[email protected]" * * * * * /usr/bin/php5 /home/myusername/public_html/cron.php /post/find_submit_test/1/ Email address [email protected] is working fine and I tested sendmail from ssh which is too working fine but cron reports are unable to be delivered. I checked WHM for notification settings couldn't even find anything relevant there. Please advice me how to fix this. Thanks

    Read the article

  • Kill all currently running cron jobs

    - by Adelphia
    For some reason my cron job scripts aren't exiting cleanly and they're backing up my server. There are currently a couple hundred processes running for one of my users. I can use the following command to kill all processes by that user, but how can I simplify this to kill only crons? pgrep -U username | while read id ; do kill -6 $id ; done It would be dangerous to run the above command as is, correct? Wouldn't that kill mysql and other important things?

    Read the article

  • Software Engineer, Developer, Programmer - Just a name?

    - by user51229
    I look at ads and the jobs seem to overlap. A lot of software engineer jobs even say CS or related degree so it doesn't seem like a degree in CS = software engineer. It seems like a programmer or developer with experience can transition to the role or become an "engineer". Or is the engineer just the same job with a fancy name... Is there really a difference or is it just HR throwing names around?

    Read the article

  • quartz: preventing concurrent instances of a job in jobs.xml

    - by Jason S
    This should be really easy. I'm using Quartz running under Apache Tomcat 6.0.18, and I have a jobs.xml file which sets up my scheduled job that runs every minute. What I would like to do, is if the job is still running when the next trigger time rolls around, I don't want to start a new job, so I can let the old instance complete. Is there a way to specify this in jobs.xml (prevent concurrent instances)? If not, is there a way I can share access to an in-memory singleton within my application's Job implementation (is this through the JobExecutionContext?) so I can handle the concurrency myself? (and detect if a previous instance is running) update: After floundering around in the docs, here's a couple of approaches I am considering, but either don't know how to get them to work, or there are problems. Use StatefulJob. This prevents concurrent access... but I'm not sure what other side-effects would occur if I use it, also I want to avoid the following situation: Suppose trigger times would be every minute, i.e. trigger#0 = at time 0, trigger #1 = 60000msec, #2 = 120000, #3 = 180000, etc. and the trigger#0 at time 0 fires my job which takes 130000msec. With a plain Job, this would execute triggers #1 and #2 while job trigger #0 is still running. With a StatefulJob, this would execute triggers #1 and #2 in order, immediately after #0 finishes at 130000. I don't want that, I want #1 and #2 not to run and the next trigger that runs a job should take place at #3 (180000msec). So I still have to do something else with StatefulJob to get it to work the way I want, so I don't see much of an advantage to using it. Use a TriggerListener to return true from vetoJobExecution(). Although implementing the interface seems straightforward, I have to figure out how to setup one instance of a TriggerListener declaratively. Can't find the docs for the xml file. Use a static shared thread-safe object (e.g. a semaphore or whatever) owned by my class that implements Job. I don't like the idea of using singletons via the static keyword under Tomcat/Quartz, not sure if there are side effects. Also I really don't want them to be true singletons, just something that is associated with a particular job definition. Implement my own Trigger which extends SimpleTrigger and contains shared state that could run its own TriggerListener. Again, I don't know how to setup the XML file to use this trigger rather than the standard <trigger><simple>...</simple></trigger>.

    Read the article

  • Select Statements in Jobs

    - by Andrew Vogel
    I have inherited a few jobs and I am trying to understand why select statements would be in their steps. I would think that select statements would be pointless in an automated job that displays nothing for an end user.

    Read the article

< Previous Page | 6 7 8 9 10 11 12 13 14 15 16 17  | Next Page >