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  • Talking JavaOne with Rock Star Raghavan Srinivas

    - by Janice J. Heiss
    Raghavan Srinivas, affectionately known as “Rags,” is a two-time JavaOne Rock Star (from 2005 and 2011) who, as a Developer Advocate at Couchbase, gets his hands dirty with emerging technology directions and trends. His general focus is on distributed systems, with a specialization in cloud computing. He worked on Hadoop and HBase during its early stages, has spoken at conferences world-wide on a variety of technical topics, conducted and organized Hands-on Labs and taught graduate classes.He has 20 years of hands-on software development and over 10 years of architecture and technology evangelism experience and has worked for Digital Equipment Corporation, Sun Microsystems, Intuit and Accenture. He has evangelized and influenced the architecture of numerous technologies including the early releases of JavaFX, Java, Java EE, Java and XML, Java ME, AJAX and Web 2.0, and Java Security.Rags will be giving these sessions at JavaOne 2012: CON3570 -- Autosharding Enterprise to Social Gaming Applications with NoSQL and Couchbase CON3257 -- Script Bowl 2012: The Battle of the JVM-Based Languages (with Guillaume Laforge, Aaron Bedra, Dick Wall, and Dr Nic Williams) Rags emphasized the importance of the Cloud: “The Cloud and the Big Data are popular technologies not merely because they are trendy, but, largely due to the fact that it's possible to do massive data mining and use that information for business advantage,” he explained. I asked him what we should know about Hadoop. “Hadoop,” he remarked, “is mainly about using commodity hardware and achieving unprecedented scalability. At the heart of all this is the Java Virtual Machine which is running on each of these nodes. The vision of taking the processing to where the data resides is made possible by Java and Hadoop.” And the most exciting thing happening in the world of Java today? “I read recently that Java projects on github.com are just off the charts when compared to other projects. It's exciting to realize the robust growth of Java and the degree of collaboration amongst Java programmers.” He encourages Java developers to take advantage of Java 7 for Mac OS X which is now available for download. At the same time, he also encourages us to read the caveats.

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  • GWB | 30 in 60 Update &ndash; Enrique is almost there!

    - by Staff of Geeks
    We are very close to having our first blogger to reach 30 posts, Enrique Lima.  Stuart Brierley is over the hump with 16 posts and Dave Campbell and Eric Nelson are definitely in the running.  If you don’t know what I am talking about, we are running a contest for our bloggers.  Anyone who blogs on Geekswithblogs who creates 30 posts from May 15th to July 13th will receive a custom Geekswithblogs.net t-shirt with their URL on the back.  This could be their Geekswithblogs.net address or their custom domain.  It is definitely not too late to get started and with TechEd or WWDC right around the corner, there is definitely a lot to talk about. Current Standings: Enrique Lima (28 posts) - http://geekswithblogs.net/enriquelima StuartBrierley (16 posts) - http://geekswithblogs.net/StuartBrierley Dave Campbell (12 posts) - http://geekswithblogs.net/WynApseTechnicalMusings Eric Nelson (10 posts) - http://geekswithblogs.net/iupdateable Christopher House (10 posts) - http://geekswithblogs.net/13DaysaWeek mbcrump (7 posts) - http://geekswithblogs.net/mbcrump Chris Williams (6 posts) - http://geekswithblogs.net/cwilliams Michael Stephenson (5 posts) - http://geekswithblogs.net/michaelstephenson Steve Michelotti (5 posts) - http://geekswithblogs.net/michelotti Liam McLennan (5 posts) - http://geekswithblogs.net/liammclennan Follow Us On Twitter: @StaffOfGeeks Technorati Tags: Geekswithblogs,30 in 60,Standings

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  • links for 2010-06-17

    - by Bob Rhubart
    Live Webcast: Alcatel-Lucent Delivers Modern Customer User Experience with New Interactive Portal Saeed Hosseiniyar (CIO of Alcatel-Lucent’s Enterprise Products Group) and Andy MacMillan  (VP of Product Management for Oracle’s Enterprise 2.0 Solutions) discuss how  Alcatel used Oracle’s Enterprise 2.0 solutions to build a community and  give customers a rich interactive experience. (tags: oracle otn webcast enterprise2.0) Up Next, More Browser Tools for WebCenter Sharing | The AppsLab On the heels of our bookmarklet for sharing to WebCenter, today we were designing another other way to help people interact with WebCenter from the browser (tags: ping.fm oracle e20) BPM 11gR1 now available on Amazon EC2 "This is a fully configured image which requires absolutely no installation and lets you get hands on experience with the software within minutes," says  Prasen Palvankar. "This image has all the required software installed and configured." (tags: oracle otn bpm amazon ec2) Webcast: Introducing Next-Generation Business Process Management Hasan Rizvi, Senior Vice President, Oracle Product Development, discusses innovations in Oracle's new BPM Suite 11g in this webcast. (tags: oracle otn webcast bpm) Tim Pinchetti: Architecture as a navigation system "Metaphors have value in communicating different aspects of architecture. So I’d like to explore different perspectives on architecture using different metaphors, starting with: navigation!" -- Tim Pinchetti  (tags: architecture enterprisearchitecture entarch) Oracle Fusion Middleware Innovation Awards 2010 Nominate your organization today for a chance to be recognized for your cutting-edge solution using Oracle Fusion Middleware products. (tags: oracle openworld fusionmiddleware innovation) Oracle OpenWorld Key Financials Sessions Theresa Hickman with highlights on the some of the 70 financial sessions scheduled for Oracle Open World,  crossing all the financials product lines: e-Business Suite, JD Edwards, PeopleSoft, and Fusion. (tags: oracle otn openworld financials) Liberate Your Laptops! The Return of Virtual Developer Day Details on the upcoming Oracle Technology Network Virtual Developer Day - Tuxedo. (English-language version scheduled for July 27th.)  (tags: oracle tuxedo virtualbox otn) Webcast: Effective Smart Data Grid Management David Haak (Accenture), Brad Williams (Oracle), and Chris Foretich (Southern) discuss the strategy behind and the application of smart data grid technology in this on-demand webcast.  (tags: ping.fm oracle bpm)

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  • CSO Summit @ Executive Edge

    - by Naresh Persaud
    If you are attending the Executive Edge at Open World be sure to check out the sessions at the Chief Security Officer Summit. Former Sr. Counsel for the National Security Agency, Joel Brenner ,  will be speaking about his new book "America the Vulnerable". In addition, PWC will present a panel discussion on "Crisis Management to Business Advantage: Security Leadership". See below for the complete agenda. TUESDAY, October 2, 2012 Chief Security Officer Summit Welcome Dave Profozich, Group Vice President, Oracle 10:00 a.m.–10:15 a.m. America the Vulnerable Joel Brenner, former Senior Counsel, National Security Agency 10:15 a.m.–11:00 a.m. The Threats are Outside, the Risks are Inside Sonny Singh, Senior Vice President, Oracle 11:00 a.m.–11:20 a.m. From Crisis Management to Business Advantage: Security Leadership Moderator: David Burg, Partner, Forensic Technology Solutions, PwC Panelists: Charles Beard, CIO and GM of Cyber Security, SAIC Jim Doggett, Chief Information Technology Risk Officer, Kaiser Permanente Chris Gavin, Vice President, Information Security, Oracle John Woods, Partner, Hunton & Williams 11:20 a.m.–12:20 p.m. Lunch Union Square Tent 12:20 p.m.–1:30 p.m. Securing the New Digital Experience Amit Jasuja, Senior Vice President, Identity Management and Security, Oracle 1:30 p.m.–2:00 p.m. Securing Data at the Source Vipin Samar, Vice President, Database Security, Oracle 2:00 p.m.–2:30 p.m. Security from the Chairman’s Perspective Jeff Henley, Chairman of the Board, Oracle Dave Profozich, Group Vice President, Oracle 2:30 p.m.–3:00 p.m.

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  • BPM PS6 video showing process lifecycle in more detail (30min) by Mark Nelson

    - by JuergenKress
    If the five minute video I shared last week has whet your appetite for more, then this might be just what you are looking for! The same international team that has made that video - Andrew Dorman, Tanya Williams, Carlos Casares, Joakim Suarez and James Calise – have also created a thirty minute version that walks through in much more detail and shows you, from the perspective of various business stakeholders involved in process modeling, exactly how BPM PS6 supports the end to end process lifecycle. The video centres around a Retail Leasing use case, and follows how Joakim the Business Analyst, Pablo the Process Owner, and James the Process Analyst take the process from conception to runtime, solely through BPM Composer, without the need for IT or the use of JDeveloper. Joakim, the Business Analyst, models the process, designs the user interaction forms, and creates business rules, Pablo, the Process Owner, reviews the process documentation and tests the process using the new ‘Process Player’, James, the Process Analyst, analyses the process and identifies potential bottle necks using ‘Process Simulation’. Read the full article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: BPM PS6,BPM,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Thank you South Florida for a successful SPSouthFLA

    - by Leonard Mwangi
    I wanted to officially thank the organizers, speakers, volunteers and the attendees of SharePoint Saturday South Florida. Being the first event in South Florida the reception was phenomenon and the group of speakers from keynote by Joel Oleson to session’s speakers from well renowned speakers like John Holliday, Randy Disgrill, Richard Harbridge, Ameet Phadnis, Fabian Williams, Chris McNulty, Jaime Velez to organizers like Michael Hinckley amongst others. With my Business Intelligence (BI) presentation being on the last track of the day, I spent very quality time networking with these great guys and getting the insider scope on International SharePoint Community from Joel and his son which was mesmerizing. I had a very active audience to a point where we couldn’t accommodate all the contents within the 1hr allocated time because they were very engaged and wanted a deep dive session on news features like PowerPivot, enhancements on PerformancePoint, Excel Services amongst others in order to understand the business value and how SharePoint 2010 is making the self-service BI become a reality. These community events allows the attendees experience technology first hand and network with MVPs, authors, experts providing high quality educational sessions usually for free which is a reason to attend. I have made the slides for my session available for download for those interested http://goo.gl/VaH5x

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  • ArchBeat Link-o-Rama for 2012-09-20

    - by Bob Rhubart
    Attend OTN Architect Day – by Architects, for Architects – October 25 You won't need 3D glasses to take in these live presentations (8 sessions, two tracks) on Cloud computing, SOA, and engineered systems. And the ticket price is: Zero. Nothing. Absolutely free. Register now for Oracle Technology Network Architect Day in Los Angeles. Thursday October 25, 2012, 8:00am – 5:00pm Sofitel Los Angeles8555 Beverly BoulevardLos Angeles, CA 90048 Loving VirtualBox 4.2… | The ORACLE-BASE Blog Is it wrong for a man to love a technology? Oracle ACE Director Tim Hall has several very good reasons for his feelings… Running RichFaces on WebLogic 12c | Markus Eisele "With all the JMS magic and the different provider checks in the showcase this has become some kind of a challenge to simply build and deploy it," says Oracle ACE Director Markus Eisele. His detailed post will help you to meet that challenge. Oracle ADF Coverage at OOW | Frank Nimphius Frank Nimphius shares a comprehensive and well-organized list of Oracle ADF sessions and activities scheduled for Oracle OpenWorld in San Francisco. OIM 11g R2 Catalog Customization Example | Daniel Gralewski Oracle Fusion Middleware A-Team member Daniel Gralewski's post shows "how OIM catalog can be customized by using OIM UI capabilities such as managed beans and EL expressions. The post first describes the use case and the solution to address the use case; then it describes the solution details as well as provides links to the artifacts." New Book: Oracle BPM Suite 11g: Advanced BPMN Topics | Mark Nelson Redstack blogger Mark Nelson shares an overview of Oracle BPM Suite 11g: Advanced BPMN Topics, the new book he co-authored with Tanya Williams. Nelson describes the book as "a concise presentation of both theory and practical examples of the areas of BPMN where we have encountered the most widespread confusion and misunderstanding." Thought for the Day "I strive for an architecture from which nothing can be taken away." — Helmut Jahn Source: Brainy Quote

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  • BI&EPM in Focus - November 2011

    - by Mike.Hallett(at)Oracle-BI&EPM
    Enterprise Performance Management A Thing of Beauty, by Alison WeissAvon’s enterprise performance management system delivers accurate information and critical insight to managers at every level of the organization Oracle Crystal Ball Helps Managers Guard Against Volatility, by Alison Weiss The Insight Game, by Aaron LazenbyEnterprise performance management can deliver insights crucial to navigating the volatility of the global economy—and that’s no game of checkers. KPI vs. the Bottom Line, by Edward RoskeFor managers, is tracking the key metrics for their departments enough to ensure success for the entire business? The CEO for Oracle partner interRel shares his opinion. Deep Integration, by Aaron LazenbyThe synthesis of Oracle Hyperion applications and core Oracle technologies can deliver deep benefits to analytics-driven businesses. Oracle Crystal Ball. Oracle's #1 Solution for Risk Management Follow EPM Documentation at Hyperion EPM Info for news about EPM documentation releases and updates (twitter | facebook | Linkedin) Whitepaper: Integrating XBRL Into Your Financial Reporting Process Oracle Hyperion Disclosure Management Customer Story: StealthGas Inc. Saves 12 Accountant Days Yearly, Validates XBRL-Compliant Financial Filing Data in One Day Sherwin-Williams Argentina I.C.S.A. Accelerates Budget Preparation Process by 75% BBDO Germany GmbH Consolidates Financial and Planning Processes for More Than 50 Agencies StealthGas Inc. Saves 12 Accountant Days Yearly, Validates XBRL-Compliant Financial Filing Data in One Day Business Intelligence Webcast Replay: Oracle Data Mining & BI EE - Predictive Analytics (Part 2) Innovation Award Winners - BI/EPM: HealthSouth, State of MD, Clorox Company, Telenor and Dunkin Brands Leeds Teaching Hospitals National Health Service Trust Builds Budget Reports Six Times Faster, Achieves 100% ROI in 12 Months with Oracle Business Intelligence Home Credit Group Consolidates Reporting and Saves Time across All Business Units w/ Oracle Essbase & OBIEE Autoglass Improves Business Visibility and Services to Customers and Partners with Oracle Business Intelligence Events Download Oracle OpenWorld Oct 2011 Presentations select Middleware - BI or Applications - Hyperion Oracle Business Analytics Summits:learn about the latest trends, best practices, and innovations in business intelligence, analytics applications, and data warehousing Webcast Nov 15 9am PST: Running the Last Mile, Beyond Financial Consolidations - Streamlining the Close and Addressing the SEC's XBRL Mandate Webcast Dec 13 1pm PST: Defining Your Mobile BI Strategy (BICG) New Training Available: Oracle BI Publisher 11g R1: Fundamentals Webcast Replay: How to Expand the Usage of Analytics in your Organization while Driving Down IT Spend Webcast Replay: Real-Time Decisions (RTD) Updated Use Cases for Ecommerce Personalization in Financial Services & Retail

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  • PCI Compliance Book Suggestion

    - by Joel Weise
    I am always looking for good books on security, compliance and of course, PCI.  Here is one I think you will find very useful. "PCI Compliance, Third Edition: Understand and Implement Effective PCI Data Security Standard Compliance" by Branden Williams and Anton Chuvakin.  [Fair disclosure - Branden and I work together on the Information Systems Security Association Journal's editorial board.]   The primary reason I like this book is that the authors take a holistic architectural approach to PCI compliance and that to me is the most safe and sane way to approach PCI.  Using such an architectural approach to PCI is, in my humble opinion, the underlying intent of PCI.  Don't create a checklist of the PCI DSS and then map a solution to each.  That is a recipe for disaster.  Instead, look at how the different components and their configurations work together in a synergistic fashion.  In short, create a security architecture and governance framework (the ISO 27000 series is a good place to start) that begins with an evaluation of the requirements laid down in the PCI DSS, as well as your other applicable compliance, business and technical requirements.  By developing an integrated security architecture you should be able to not only address current requirements, but also be in a position to quickly address future ones as well.

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  • Using the Java SE 8 Date Time API with JPA 2.1

    - by reza_rahman
    Most of you are hopefully aware of the new Date Time API included in Java SE 8. If you are not, you should check them out right now using the Java Tutorial Trail dedicated to the topic. It is a significantly leap forward in processing temporal data in Java. For those who already use Joda-Time the changes will look very familiar - very simplistically speaking the Java SE 8 feature is basically Joda-Time standardized. Quite naturally you will likely want to use the new Date Time APIs in your JPA domain model to better represent temporal data. The problem is that JPA 2.1 will not support the new API out of the box. So what are you to do? Fortunately you can make use of fairly simple JPA 2.1 Type Converters to use the Date Time API in your JPA domain classes. Steven Gertiser shows you how to do it in an extremely well written blog entry. Besides explaining the problem and the solution the entry is actually very good for getting a better understanding of JPA 2.1 Type Converters as well. I think such a set of converters may be a good fit for Apache DeltaSpike as a Java EE 7 extension? In case you are wondering about Java SE 8 support in the JPA specification itself, Nick Williams has already entered an excellent, well researched JIRA entry asking for such support in a future version of the JPA specification that's well worth looking at. Another possibility of course is for JPA providers to start supporting the Date Time API natively before anything is formalized in the specification. What do you think?

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  • procdump on w3wp.exe: Only part of a ReadProcessMemory or WriteProcessMemory request was completed.

    - by JakeS
    I'm having a problem with an IIS application that occasionally spikes up in CPU usage, and am trying to use procdump to get a memory dump for examination. I'm running "procdump.exe -64 -mA 9999" where 9999 is the pid of the process. But every time I do it, I get an error: Only part of a ReadProcessMemory or WriteProcessMemory request was completed. Doing this also recycles the apppool, relieving the CPU spike, so I can't keep trying until I get it right. Does anyone know what is going wrong?

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  • Are there any tools for monitoring individual Apache virtual hosts in real-time?

    - by Dave Forgac
    I'm looking for a way to monitor and record Apache traffic, separated by virtual host. I am currently using Munin to capture this and other data for the entire server however I can't seem to find a way to do this by vhost. This link describes using a module called mod_watch which is apparently no longer in development: http://www.freshnet.org/wordpress/2007/03/08/monitoring-apaches-virtualhost-with-munin/ The file that is listed as being compatible with Apache 2.x is reported to have problems with missing vhosts an reporting data correctly. Does anyone know of a reliable way to determine real-time traffic per vhost? If I can find this it should be easy enough to write a new Munin plugin. Edit: What I'd really like to see is something similar to the Apache server-status scoreboard page with the number of connections / requests separated by virtual host. This would give me the ability to check which vhost may be experiencing a spike in traffic in real time and would also provide the data needed for a Munin module (or some alternative performance monitoring / analysis system.)

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  • Postgres 9.0 locking up, 100% CPU

    - by Jake
    We are having a problem where our Postgres 9.0 server occasionally locks up and kills our webapp. Restarting Postgres fixes the problem. Here's what I've been able to observe: First, usage of one CPU jumps to 100% for a few minutes Disk operations drop to ~0 during this time Database operations drop to 0 (blocks and tuples per sec) Logs show during this time: WARNING: worker took too long to start; cancelled WARNING: worker took too long to start; cancelled No Queries in logs (only those over 200ms are logged) No unusually long-running queries logged before or during Then the second CPU jumps to 100% The number of postgres processes jumps from the usual 8-10 to ~20 Matched by a spike in Postgres Blocks per second (about twice normal) Logs show LOG: could not accept SSL connection: EOF detected Queries are running but slow Restarting postgres returns everything to normal Setup: Server: Amazon EC2 Large Ubuntu 10.04.2 LTS Postgres 9.0.3 Dedicated DB server Does anyone have any idea what's causing this? Or any suggestions about what else I should be checking out?

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  • High server load - [jbd2/md1-8] using 99.99% IO

    - by Alex
    I've been having spike in load over the last week. This usually occurs once or twice a day. I've managed to identify from iotop that [jbd2/md1-8] is using 99.99 % IO. During the high load times there is no high traffic to the server. Server specs are: AMD Opteron 8 core 16 GB RAM 2x2.000 GB 7.200 RPM HDD Software Raid 1 Cloudlinux + Cpanel Mysql is properly tuned Apart from the spikes, the load usually is around 0.80 at most. I've searched around but can't find what [jbd2/md1-8] does exactly. Has anyone had this problem or does anyone know a possible solution? Thank you. UPDATE: TIME TID PRIO USER DISK READ DISK WRITE SWAPIN IO COMMAND 16:05:36 399 be/3 root 0.00 B/s 38.76 K/s 0.00 % 99.99 % [jbd2/md1-8]

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  • Linux halts every few seconds

    - by Zeppomedio
    We're having an issue where one our Linux boxes (Ubuntu 10.04 LTS, running on EC2 with a quadruple-large size, 68GB of RAM and 8 virtual cores with 3.25GHz each) freezes up every few seconds. Typing in an ssh session will freeze, and running strace on one of the Postgresql processes that's running usually shows: 02:37:41.567990 semop(7831581, {{3, -1, 0}}, 1 for a few seconds before it proceeds (it always gets stuck at that semop). OProfile shows that most of the time is spent in the kernel (60%) versus 37% in Postgresql. The result of these halts (which began suddenly a day ago) is that load on the box has gone from 0.7 to 10+, and causes our entire stack to slow done. Any ideas on how to track down what's going on? iostat doesn't show the disks being particularly slow or overloaded, and top shows user cpu % spike from 8% to about 40% whenever these back-ups happen.

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  • Where are ethernet errors logged?

    - by Matt
    Munin is showing me a graph like this: During that spike, I was unable to access my server through the eth0 port (I could access it through my IPMI port). I'm trying to figure out what happened, but I can't seem to locate any log files for eth0. I don't see anything in /var/log/(kern|syslog|messages) that is out of the ordinary. And I don't see a log file specifically for eth0. Are there logs for eth0, and if so, where can I find them? I am running Ubuntu 10.04 LTS.

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  • 'inode table usage' spiking every morning at 8am

    - by Harry Wood
    I installed munin on my ubuntu server. It's showing my 'inode table usage' spiking every morning at 8am. It then rapidly curves down and settles over the course of several hours. What might cause this? I thought it might be something running in /etc/cron.daily but this was set to run at 6a.m. and I've changed it to 4am. The spike remains at 8am. I also enabled cron logging, but can't see anything getting launched at 8a.m. It's a virtual server hosted by memset. Could it be caused by something happening on the virtual host?

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  • What are some good, free tools to run automated security audits for PHP code?

    - by James Simpson
    I've been looking for some time now and have come up short. The most promising I found was Spike PHP, which seems to no longer work. I'm looking to scan my code for potential risks of SQL Injection, XSS, etc. I've gone through most of my code manually, but with a few hundred thousand lines of code, I'm sure I missed things. If possible, are there any tools that can be downloaded and analyze code on my local machine rather than installing to the live server (this isn't a requirement if not)?

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  • Monitoring Maximum Process Network Activity

    - by user125973
    We have a collocated server on which we run some OpenVZ hosts. Recently, we have had to pay a lot extra we keep exceeding our bandwidth quota. Our quota is 5 Mb/s but we have spike to almost 50. I looked at the graphs and there are some spikes happening at some intervals. I want to know which process is causing this so I need a tool that monitors the processes and gives me the one with the maximum instant traffic (It doesn't matter how much traffic we have as long as we don't exceed the 5Mb/s quota). Does anyone have a recommendation for this? My hosts are CentOS 5 with OpenVZ so I can see all the containter processes from the host, if that helps in any way.

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  • Can Resource Governor for SQL Server 2008 be scripted?

    - by blueberryfields
    I'm looking for a method to, in real-time, automatically, adjust Resource Governor settings. Here's an example: Imagine that I have 10 applications, each hitting a different database on the same database machine. For normal operations, they do not hit the database very hard, so I might want each one to have 10% CPU power reserved. Occasionally, though, one or two of them might spike, and run an operation which could really use the extra power to run faster. I'd like to be able to adjust to compensate (say, reducing the non-spiking apps to 3%, and splitting the difference between the spiking apps). This is a kind of poor man's method of trying to dynamically adjust resource allocation and priorities. Scripts (or something script-like) is preferred, since the requirement is for meta-level adjustments to be possible in real-time, also.

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  • Downstream to server periodically dropping and spiking

    - by dauphic
    I have a server located in Canada. I'm experiencing that, when connecting from the south-eastern US (southern California, Arizona), I see my downstream on connections to this server periodically drop to 0 for 1-3 seconds, then spike in the next second and receive all of the data that should have been received during the drop off period. This doesn't happen in regular intervals, but it does happen often, usually once every 5-10 seconds. I've gotten trace routes from users with various ISPs and locations, but I'm not seeing any spikes or drop offs in response times, or any sort of packet loss. I'm guessing this is because ICMP is prioritized, though. It seems like a misbehaving router along the way, but I have no idea how to figure out where the problem lies (let alone if there's any way to work around it). Is there any way for me to diagnose this problem?

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  • Get source and destination of outbound traffic in pfSense

    - by maxsilver
    I'm looking at the traffic graph in pfSense (Version 1.2.2), which we're using as a router / NAT / ect on our network. Recently, I'm seeing a sudden, constant spike of 15 - 30kbps traffic outbound, that is unusual for our network (normally its below 2kbps, we're mostly all inbound traffic) Is there any way to determine what the source of this traffic is, or where it's going? (Just an internal IP address for source, and external IP address for destination would be all I need) I've already tried switching the traffic graph to 'LAN' and watching the host list on the right side, but it seems ... flakey. The numbers it shows seem to fade in and out at random, and the values never add up to anywhere near the graph values. I'm not allowed to post the image, but a photo is available at - http://imgur.com/QYjKI.png

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  • Disable Offline Files (mobsync.exe) on Windows 7 Home

    - by Synetech
    This morning I was watching the CPU graph of a Windows 7 Home laptop and noticed that every few seconds, the CPU would spike several percent. I watched the processes and determined that it was mobsync.exe (Offline Files) that was the culprit. I tried the usual steps that Googling turns up, and clicking the Manage Offline Files link to bring up the Offline Files dialog to click Disable Synch does not work because the dialog will not display. This makes sense since everything I have read indicates that Offline Files is not even included/supported in the Home version, so I am at a loss as to why it is running at all, let alone why it is sucking up CPU cycles. (My best guess is that it was started when they pressed Win+X to access the Mobility Center.) Of course I can just kill mobsync, but it could always just come back. How/why would mobsync be running on a Home version and how can it be disabled (of course the Group Policy editor is not available on a Home version).

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  • Funnelling http traffic

    - by spencer p
    I have a situation where a large batch of servers (X), on demand, need to request data from a smaller set of web servers (Y). The worst case scenario is if all servers in X decide to fetch different requests to one server in Y. That would be X amount of connections, which could be a very large burst of traffic. The best case scenario is if 1 server in X hit 1 server in Y in tandem. Life does not work like this. One idea to entertain is placing a proxy, similar to squid between X and Y. All of X servers can connect to this proxy, but would result in a few persistent (http keepalive) connections to Y. If The few were say, 3 or 4, then it would funnel. If we could then rate limit those connections and traffic decides to spike unusually high, we wouldn't hurt anyone but ourselves. Thoughts?

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  • perfmon reporting higher IOPs than possible?

    - by BlueToast
    We created a monitoring report for IOPs on performance counters using Disk reads/sec and Disk writes/sec on four servers (physical boxes, no virtualization) that have 4x 15k 146GB SAS drives in RAID10 per server, set to check and record data every 1 second, and logged for 24 hours before stopping reports. These are the results we got: Server1 Maximum disk reads/sec: 4249.437 Maximum disk writes/sec: 4178.946 Server2 Maximum disk reads/sec: 2550.140 Maximum disk writes/sec: 5177.821 Server3 Maximum disk reads/sec: 1903.300 Maximum disk writes/sec: 5299.036 Server4 Maximum disk reads/sec: 8453.572 Maximum disk writes/sec: 11584.653 The average disk reads and writes per second were generally low. I.e. for one particular server it was like average 33 writes/sec, but when monitoring in real-time it would often spike up to several hundreds and also sometimes into the thousands. Could someone explain to me why these numbers are significantly higher than theoretical calculations assuming each drive can do 180 IOPs? Additional details (RAID card): HP Smart Array P410i, Total cache size of 1GB, Write cache is disabled, Array accelerator cache ratio is 25% read and 75% write

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