Search results “Locking and latching oracle”
SCPT 41: Types of Locks and Latches in Oracle
Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 20836 Oresoft LWC
Oracle Locks Explained Part 1
Oracle Locks explained. How to Kill a User session in oracle database- Neway IT Solutions
Views: 2056 NewayITSolutions LLC
Oracle Database Memory Serialization Control (latches & mutexes)
Oracle Database Memory Serialization Control (latches & mutexes) teaches Oracle DBAs the ends and outs about Oracle memory structure control. Oracle effectively creates the illusion of simultaneous memory structure manipulation. And it's our job to ensure this illusion remains a mystery to our users. To help you keep this illusion real, in this seminar I will lead you into the mysterious world of Oracle memory structure serialization control by exploring latches and mutexes: what they are, how they work, how we monitor their performance, how we tell if there is a significant problem and how we systematically diagnose the situation. I think you will soon understand why I think Oracle serialization control rocks! For details go to http://www.orapub.com/video-seminar-serialization-control PART ONE of this seminar focuses on why latches and mutexes are so important to Oracle's operations and how Oracle uses latches and mutexes in its kernel code. I also dig into how Oracle's time model relates to latching. This enables you to properly diagnosis and communicate to others why or why not latches/mutexes are a significant performance issue. Finally, I get into how Oracle increases concurrency by effectively using multiple latches of the same type to increase memory structure concurrency. It's fascinating and very important for DBAs who want to pursue a career focused on Oracle performance tuning. PART TWO begins by focusing on advanced latch spin control and detailing three ways to identify the problem latch. Then I'll begin digging deep into mutexes, including why they are important, why Oracle began using them and the acquisition algorithm. I'll even get into advanced mutex control using Oracle instance parameters. We will observe Oracle using mutexes by operating system tracing Oracle processes. It's pretty cool and key for any DBA who wants to become a performance expert. What You Will Learn In Part 1 & 2 - Why Oracle processes must ensure serial access control to Oracle memory structures - What are Oracle latches and mutexes - How Oracle latches are different from mutexes - The latch and mutex acquisition algorithms - How L&M activity relates to Oracle's time model - How to monitor for real L&M problems using Oracle's time model and an AWR report - Steps to methodically approach diagnosing and coming up with performance solutions - The differences between latches and mutexes - How Oracle implement mutexes in its library cache - How to use advanced latch spin control - What options DBAs have to influence mutex behavior L&M = Latches And Mutexes Modules Part 1: 060 Oracle Serialization Control - Part 1 1. Why the simultaneous memory structure illusion must exist and why it works so well 2 Oracle processes, L&M and memory structures, the general L&M acquisition algorithm 3 L&M time accounting and how this relates to the Oracle time model and the AWR report 4. Oracle latch specifics: concurrency limitations, child latches, multiple latches and how latches "back off." Part 2: 062 Oracle Serializatoin Control - Part 2 1. Using latch specific spin count control to your advantage and three ways to identify the problem latch 2. Why mutexes are advantageous to increase concurrency 3. Detailing the Oracle mutex algorithm 4. Advanced mutex control and observering Oracle mutex usage in detail For more information to go www.orapub.com
Views: 2701 OraPub, Inc.
What are Latches
Latch Overview
Views: 3953 Mike
Latches in Oracle
Views: 581 Hemant K Chitale
Understanding And Resolving Oracle CBC Wait/Latch Contention - Introduction
Understanding And Resolving Oracle CBC Wait/Latch Contention When a server process needs to access a buffer it must access the cache buffer chain (CBC) structure to determine if the buffer is already in the buffer cache. With just the right workload mix, performance can be a problem. Learning about the relevant Oracle internals and how to diagnose and solve CBC performance problems is what this seminar is all about. For more information go to www.orapub.com
Views: 990 OraPub, Inc.
Understanding and Optimizing Oracle Latches/Mutexes - Webinar
Understanding and Optimizing Oracle Latches/Mutexes. Oracle memory serialization control is core to Oracle database operations. One of the most fascinating topics in Oracle internals and performance optimization is memory serialization. We will look at the circumstances in which serialization is used, how it works, how to influence its operation, and how to diagnose problems. It's a complex situation; in order to get the upper hand on serialization control, this presentation will explore the lock (a little), the latch (a lot), and the mutex (a whole lot). Topics will include: performance diagnosis, how Oracle implements latches and mutexes, and related internal algorithms. Special attention will be given to the library cache mutex operations. This is a practical, yet deep internals presentation filled with amazing discoveries about how Oracle works. For more information go to www.orapub.com
Views: 236 OraPub, Inc.
19mm LED latching switch wiring
How to wire a halo ring LED light latch switch. Also known as an angel eye led switch. I couldn't find a good tutorial online so I decided to put one up. Link to switch https://ebay.to/2GVYyK0 Diagram here: http://www.velocity-laboratories.com/?p=126 Stuff I need for production! http://a.co/iM4PGFF http://s21.postimg.org/6ukq4uso7/22mm.jpg http://www.tomshardware.com/answers/id-1728604/wiring-setup-blue-led-22mm-12v-stainless-steel-switch-momentary-push-button.html
Views: 104381 Velocity Labs
How to manager Oracle database locks and deadlocks with Oracle Enterprise Manager 12C
Video tutorials on How to manager Oracle database locks and deadlocks with Oracle Enterprise Manager 12C For more Database Administration articles and scripts go to www.aodba.com & www.verticablog.com More Articles, Scripts and How-To Papers on http://www.aodba.com
Views: 3213 AO DBA
momentary latch waterproof metal push button switch
This is Daniel from SHENZHEN LANBOO BUTTON MANUFACTURING CO., LTD. in China We are one the biggest button switch manufacturers in China .We have the large current 15A BUTTON switch- No more to connect relay-Global Origination . All our products are manufactured strictly and provided to over 30 countries already If you interested it ,pls contact with me : [email protected]
Views: 1005 Brush George
Oracle Sessions Monitoring and Tuning Fundamentals 1 of 4
In this tutorial you will learn how to monitor locks, latches, wait events in oracle.
Views: 4764 DBA Pro
How to CAUSE Oracle free buffer waits
This is a snippet from my online video seminar, Understanding And Resolving Oracle Free Buffer Wait Contention. Check it out here: http://www.orapub.com/video-seminar-understanding-eliminating-oracle-free-buffer-waits
Views: 1043 OraPub, Inc.
04 03 Contention and Latch Waits
Views: 300 oracle ocm
Troubleshooting a Complex Oracle Performance Issue
In this session Tanel will walk you through troubleshooting a yet another complex performance issue that he has faced in past. Again, the initial symptoms point to a different direction than the actual root cause, so a systematic approach was needed.
Views: 3389 Tanel Poder
L06 - Index Locking & Latching [CMU Database Systems Spring 2017]
Slides PDF: http://15721.courses.cs.cmu.edu/spring2017/slides/06-latching.pdf Reading List: http://15721.courses.cs.cmu.edu/spring2017/schedule.html#feb-02-2017 Andy Pavlo (http://www.cs.cmu.edu/~pavlo/) 15-721 Database Systems (Spring 2017) Carnegie Mellon University
Views: 1240 CMU Database Group
Klaus Aschenbrenner_Latches, Spinlocks, and Lock Free Data Structures
SQLRally Nordic recording from Klaus Aschenbrenner’s presentation in Copenhagen, Denmark, March 2015
Views: 2036 SQLugSWE
Detecting and Resolving lock conflicts - ETIT 427 - ADBA - IP University Syllabus
Detecting and Resolving lock conflicts - ETIT 427 - ADBA - IP University Syllabus For Students of B.Tech, B.E, MCA, BCA, B.Sc., M.Sc., Courses - As Per IP University Syllabus and Other Engineering Courses
Oracle X$TRACE, Wait Event Internals and Background Process Communication
In this session we will look into some internals of Oracle background process communication and also some special types of wait events that most people aren’t aware of. We will use some exotic tracing for internals research and fun and some of this stuff is actually useful in real life too! I’m not going to reveal everything upfront, as this is a secret internals hacking session after all ;-) We will use various techniques to research what the “reliable message” wait event is about and how reliable background process communication is orchestrated in Oracle. This is a hacking session, not formal structured training, so I’ll just do free form demos and talk (probably no slides, just hacking stuff on the command line). Also, check out my full-week Advanced Oracle Troubleshooting online training at https://blog.tanelpoder.com/seminar
Views: 3164 Tanel Poder
I created this as a reference for wiring the 19mm 5 pin LED switches available on eBay for "Switch On (Light On)-Switch Off (Light Off)
Views: 19432 Gary Bleisch
Lunch n Learn   Important Oracle Wait Events
Oracle Wait Events DB File Scattered Read and DB FIle Sequential Read...tips and techniques...
Views: 4634 Dan Hotka
Last DBA Office Hours before OpenWorld
We're heading into OpenWorld season with this month's DBA Office Hours. We preview OpenWorld and how to get the best out of it, as well as covering - issues with the MERGE command - flashback database - unusual blocking locks - when EXPLAIN PLAN drops table from view blog: https://connor-mcdonald.com twitter: https://twitter.com/connor_mc_d https://developer.oracle.com/ https://cloud.oracle.com/en_US/tryit
Views: 129 Oracle Developers
Fix: Empty Pmag gen 3 doesn't catch/lock bolt
AR platform is new to me, and I hope I don't upset anyone here because I am a noob when it comes to ARs. I recently assembled this Noveske rifle and bought 3 pmags M3 only to realize that most of the time the bolt wouldn't lock back on an empty mag. I then found a solution to the problem. Very simple to fix if you are having a similar problem. Of course not everyone has the same exact issue. When the bolt is closed, the bolt stop lever is prevented from raising by the bolt sitting above it. My brand new pmags had casting burrs on the inside of the body where the back of the follower, that also had a burr would snag. So, I assume that if you just emptied your mag, the follower is snagged on the burr, and the bolt stop is kept down by the bolt. The bolt comes back, the follower doesn't move up (because of the burrs) and doesn't raise the bolt stop - the bolt slams forward even though your mag is empty. Same thing happens when you insert an empty mag. The bolt stop was down, kept by the bolt above it. The bolt stop presses down on the follower as the empty mag is inserted. the follower catches the burr of the mag body, and doesn't come up. Bolt is pulled back, but the follower is not pushing up on the bolt stop, so the bolt slams forward when you release the charging handle. This is what I believe is happening and removing that pesky burr solves this issue, although i haven't fired this rifle yet and cannot know for sure. Let me know if I am completely wrong here.
Views: 39486 MosinVirus
SQL Server Interview | What is Latch, What is the difference between Latch and Lock in SQL Server
SQL Server DBA interview Question "What is Latch? What is the difference between Latch and Lock in SQL Server" Complete list of SQL Server DBA Interview Questions by Tech Brothers http://sqlage.blogspot.com/search/label/SQL%20SERVER%20DBA%20INTERVIEW%20QUESTIONS
Views: 8442 TechBrothersIT
Oracle Sessions Monitoring and Tuning Fundamentals 2 of 4
In this tutorial you will learn how to monitor locks, latches, wait events in oracle.
Views: 1226 DBA Pro
Understanding Locking Resources in Sql server   Part 1
There are resources in sql server on which locks can be placed. Please watch complete video for more detail
Views: 1266 SqlIsEasy
Concurrency Control - Lock Based Protocol in DBMS Transaction Management
DBMS Tutorial in English, Hindi - Concurrency Control - Lock Based Protocol in DBMS Transaction Management for students of IP University Delhi and Other Universities, Engineering, MCA, BCA, B.Sc, M.Sc Colleges.
Views: 202812 Easy Engineering Classes
How to find Oracle Database locked session using Oracle Enterprise Manager 12C
Video tutorial on how to find Oracle Database locked session using Oracle Enterprise Manager 12C. For more Database Administration articles and scripts go to www.aodba.com & www.verticablog.com More Articles, Scripts and How-To Papers on http://www.aodba.com
Views: 4936 AO DBA
Understanding And Resolving Oracle Free Buffer Wait Contention - Seminar Intro
This is the introduction to my video seminar, Understanding And Resolving Oracle Free Buffer Wait Contention. Free buffer waits is one of the most feared of all Oracle wait events. It requires just the right workload mix and configuration to appear. When it does appear, it affects the entire application. As Oracle DBAs, our job is to regain control of the situation and restore application performance. But it is complicated and making the wrong move can make the situation even worse! So, how do you quickly improve performance with a clear understanding of the situation? That's the focus of this seminar. This seminar is designed to take you on a journey. The journey starts with Craig clearly explaining what a free buffer wait is. Then he delves into Oracle's buffer cache, focusing on the least recently used (LRU) lists and the associated algorithms. Craig even role plays as an Oracle foreground process and an Oracle buffer header, locking the details into your brain. Now the details brought together making the cause and effect clear so the presented solutions make perfect sense! Taking it further, two solutions are implemented and the results analyzed. Join Oracle ACE Director Craig Shallahamer as he take you on an unforgettable journey into the Oracle buffer cache zeroing in on understanding and resolving Oracle free buffer waits. For details go to http://www.orapub.com/video-seminar-understanding-eliminating-oracle-free-buffer-waits For more information about OraPub go to www.orapub.com
Views: 1229 OraPub, Inc.
What is enq TX row lock contention
What is enq TX row lock contention Find More details Here: http://oracletech2u.blogspot.com/2014/03/what-is-enq-tx-row-lock-contention.html
Views: 210 oratech ahmed
Oracle Sessions Monitoring and Tuning Fundamentals 4 of 4
In this tutorial you will learn how to monitor locks, latches, wait events in oracle.
Views: 1547 DBA Pro
Performance Days 2017 - Impressions & Insights
Performance Days will provide a lot of valuable and practical information to diagnosing, resolving and avoid performance problems in applications involving Oracle Database with international accredited speakers.
Views: 650 TrivadisAG
the difference between latching pushbutton and momentary pushbutton
1st switch is latching function, also called self-locking, push to switch on, push again to switch off. 2nd is momentary function, also called resettable, push and hold to switch on, release to switch off.
Views: 170 Michael Li
Rugged Ridge Wrangler TJ hood latches
Time to upgrade the 10 year old Daystar hood latches. Lets see if I am as happy with these as I was with the Daystars
Views: 47 scottoffroad
OraPub Oracle BloodHound Toolkit - How To Install And Use
In this webinar Craig will demonstrate how to download, install and use his Oracle ASH based BloodHound toolkit. When you need session-level performance analysis data, you need more than ASH data. You need BloodHound because it can do things like multilevel summarization, visualization, working easily with remote data and has the ability to reference any ASH-like formatted data. You can use this webinar as a guide when you install and begin to use the BloodHound toolkit to diagnose Oracle performance problems using ASH data. Craig will start the webinar by downloading the toolkit live. He will end the webinar by using the core reporting tools using AWR ASH data. The link to our Bloodhound tool-kit can be found here: https://www.orapub.com/tools-bloodhound-toolkit For more information about OraPub, go to www.oraub.com
Views: 69 OraPub, Inc.
Inside SQL Server Latches - Bob Ward
The SQL Server database engine uses latches for internal synchronization to critical operations. So why would you care about what a latch is? Well, if you have ever monitored a SQL Server closely, you know you can't escape latches. Come to this advanced session exploring the internals of how SQL Server uses the concept of latches for synchronization of key internal data structures. This talk is a very advanced "500" session that may include the use of advanced diagnostics such the Windows debugger and discussion of Windows APIs. I will assume the audience has a basic working knowledge of the SQL Server engine including an understanding of some of the more common SQL Server Engine DMVs such as sys.dm_exec_sessions, sys.dm_exec_requests and sys.dm_os_wait_stats.
Views: 2735 PASStv
Expedition Door Lock Actuator
Catch up with us on- Twitter: http://twitter.com/wmcknigify Disclaimer: The information, demonstration and any content contained in this video is for informational purposes only. The user and wmcknigify makes no warranty, express or implied, regarding the effectiveness or safety of the contents of this video. In no way should the contents of the video, including the tools used, be repeated or tried by anyone. Viewers should only seek the help of a trained professional located at a licensed repair shop for any fix, modification, alteration, or any change. wmcknigify shall not be liable for any injury, damage, or loss to any person or property that may result from use of the tools, equipment, or any content contained in this video. In addition, there is no way to guarantee that the video is not altered or modified or is not in the final form submitted by wmcknigify and therefore, wmcknigify does not warrant that the video is unaltered or not modified. The links on this video to products are for informational purposes only and in no way are an endorsement of the safety or effectiveness of the particular product. Viewers understand that anything contained in this video or linked to or from this video is the sole responsibility of the viewer and in no way provides an express or implied warranty as to the safety or effectiveness of any linked tool, product, or video. Therefore, viewer agrees to release, waive, and discharge wmcknigify or anyone affiliated with wmcknigify, from any and all liability, claims, demands, actions, and causes of action whatsoever arising out of or related to any loss, damage, or injury, including death, that may be sustained by the viewer, or to any property belonging to viewer, regardless of whether the loss is linked to the use of the contents of this video, or otherwise and regardless of whether such liability arises in tort, contract, strict liability, or otherwise, to the fullest extent allowed by law.
Views: 9345 wmcknigify
How to bypass FORCE LOGGING
You either need that redo for your DataGuard instance...or you don't want it to keep load performance at peak. But what if you need both options? blog: https://connor-mcdonald.com twitter: https://twitter.com/connor_mc_d Subscribe as new tech videos come every week!
Views: 475 Connor McDonald
Lock Modes - Locks in SQL Server - Part 2
Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg The Microsoft SQL Server Database Engine locks resources using different lock modes that determine how the resources can be accessed by concurrent transactions. There are more than 20 types of Lock modes in SQL Server. Here we list out Most Important lock modes.
Views: 469 IT Port
Retightening Your Sisterlocks
There will no doubt be times when you might want to fortify the base of a loose locks or one whose growth is outpacing all the others, especially if it's around the front of your head. At these times, you may not be able to get to your locktician. This is when these tools can come in handy and with a little flexibility you can handle your business in no time! _________________________________________ If you find the message, its for you, so tune in and be willing to dive deep into how this applies to you. Watch as Tunisia Ali, gives it to you in a way you can understand. For energy exchange donations to the channel: PayPal.me/TunisiaAli Cash APP: cash.me/$TunisiaAli218 I conduct distance healing sessions and chakra balancing, along with a varied range of other health and healing services designed for your spiritual wellness and enlightenment. Set up your distance energy healing session by going to: https://www.hidayahreiki.com/book-online As a certified coach, I also provide coaching for those spirits seeking to connect with the vision of who they truly are. I specialize in prosperity consciousness, wealth creation, relationships, and entrepreneurship. To sign up for a free discovery session go to: https://butterflytransformations.com ______________________________________________ I conduct individual and group intuitive soul readings (tarot and oracle) of various configurations and pricing. For video link readings, please allow 2 days for processing. It is usually less. If you want expedited processing, within 2 hours, please add the “expedite fee” of $30.00 for your special reading to the regular price. VISIT MY WEBSITE TO BOOK A PERSONAL SKYPE OR PHONE CALL OR Video Link READING! If you aren’t technology equipped and prefer an email reading, I can do this as well. I do not center readings around health or legal issues. If this comes up, I will shine the light of awareness on them, however. Also, I prefer you send your first and last name and a photo for these readings. I like to really feel into the spirit of who you are. You can do this in the easiest way possible, if at all. For booking a reading of any type go to: https://www.hidayahreiki.com/book-online ONLINE PRICING ONLY ( After ‘subscribership’) 15 minute video reading is $22.22 25 minute video reading is $ 33.33 40 minute paired reading (Friends or lovers): $55.55 Phone call reading: 10 minutes - $11.11 Phone call reading: 25 minutes-$22.22 Phone call reading (2) 40 minutes-$33.33 When sending in payment, please attach an email or write in the ‘notes’ space with your payment what the situation/ event/ or love connection concerns very briefly. Send email to: [email protected] Atlanta F2F readings: $50.00 for 2 readings or with one with 3 decks. Online pricing only, mention the channel. ________________________________________ For certified Life Coaching go to: https://butterflytransformations.com For online classes for self development and connecting with the vision of who you really are visit my Powerdigm Academy: http://butterfly-transformations.teachable.com For my youtube channel to raise consciousness and get you out of your cocoon and into your wings, go to: https://www.youtube.com/channel/UCUQgm2DpCj53iLSuPaNnQYg To connect with me on Facebook: facebook.com/butterflytransformations.com
Views: 2472 Tunisia Ali
Jeep Wrangler Barricade Locking Fuel Door - Textured Black (2007-2016 JK) Review & Install
Shop Locking Fuel Door: http://terrain.jp/2inPFLl Subscribe for New Jeep Videos Daily: http://terrain.jp/SubscribeXTyt Upgrade your stock Wrangler fuel door with the Barricade Locking Fuel Door. This fuel door will ensure that the safety of your fuel cap and make sure that your fuel is under full protection. http://www.extremeterrain.com/barricade-locking-fuel-door-jk-j100725.html If you want to upgrade the look of your Jeep, plus guard against siphoning or vandalism, this Locking Fuel Door is great. It has a look that matches other mods, plus the stock components on the outside of your rig. You can install this Barricade Locking Fuel Door on any 2007-2016 Wrangler JK. It comes with a three-year manufacturer's warranty, plus two keys, just in case you lose one. Barricade uses a lightweight yet strong aluminum to make this part. As a result, you don't have to worry about corrosion or damage from debris flying around on the trail. The wrinkle black finish withstands exposure to the elements. Installation is pretty simple, although you do need to do some drilling and have a torpedo level on hand. You can have this job squared away in under half an hour, making it one of the easier modifications to do on your Jeep. Item # J100725 ---------------------------------------------------------------- Give ExtremeTerrain a follow for the latest Jeep Wrangler news, videos, pictures and content! SUBSCRIBE at http://www.youtube.com/extremeterrainvideos Facebook: http://www.facebook.com/extremeterrain Twitter: http://www.twitter.com/extremeterrain Google+: http://www.google.com/+extremeterrain Instagram: http://www.instagram.com/extremeterrain ExtremeTerrain.com is your off-road outfitters! We strive to carry a giant selection of aftermarket Jeep parts for Jeep Wranglers who like to hit the trail, the beach, cruise, crawl or go off-road. We carry a full line of off-road lights, accessories, lift kits, body armor, wheels, tires and more! With FREE Shipping on orders over $75 and the best customer service in the industry, we have you covered when it comes to any JK, TJ or YJ Jeep Wrangler. Make sure to chat with one of our Jeep Experts if you have any questions or want help planning your Jeep Project or Jeep Build! http://www.extremeterrain.com
Views: 20078 ExtremeTerrain.com
09 06 Monitoring Index Usage
Views: 114 oracle ocm
Gun lock demonstration - semi-automatic rifle
Demonstration by Ramsey County Sheriff's Office of how to install a cable gun lock on a semi-automatic rifle. Ramsey County is providing free cable locks while supplies last. Learn more at www.ramseycounty.us/gun-safety
Views: 16778 Ramsey County
How to reduce Buffer Busy Waits using Hash Partitioned Indexes
The clip explains how Buffer Busy Waits are being caused and how they can be reduced with Hash Partitioned Indexes. A text version is here: https://uhesse.com/2016/12/02/how-to-reduce-buffer-busy-waits-with-hash-partitioned-indexes-in-oracle/
OracleOpenWorld 2012 : Oracle Real World Performance Session 3
Oracle Real World Performance Session 3
Views: 107 MINSOO JUN
Oracle Wait Events  (From  Performance Tuning Training Videos)
Small excerpt from "Oracle performance Tuning-DBA Track" Course. http://www.dbvidya.com/course/performance-tuning-for-dba/ [email protected] +91 991 2323 000 Oracle Performance Tuning Online Training : http://www.dbvidya.com/course/performance-tuning-for-dba/ Oracle SQL Performance Tuning Training Online : http://www.dbvidya.com/course/sql-tuning-advanced/ Oracle Performance Tuning Videos Tutorial for DBA and Developers : http://www.dbvidya.com/oracle-performance-tuning-videos/ Oracle AWR Tutorial: http://www.dbvidya.com/course/oracle-awr/ Erwin Tool Online Training : http://www.dbvidya.com/course/erwin-tool/ ER Data Modeling Course : http://www.dbvidya.com/course/er-modeling/ Dimensional Modeling Training Online : http://www.dbvidya.com/course/dimensional-modeling/ Oracle Database Blogs : http://www.dbvidya.com/blog/
Views: 254 DbVidya

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