question about physical reads

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• Question about the "reading list" in the left pane of Safari

  'Reading list' in the left pane of Safari do not download and store videos to youtube (real video), it lists the location (URL).   Y at - it App, or an extension that will download youtube videos so I can watch them offline when I can't get internet connection?

  (I know that Google Chrome has one or several extensions to save youtube content - but I prefer not to download and install Chrome just to do this)

  Second related issue-

  If the playlist cannot download and store video files, what peut download and register to view or read it later when there is no internet connection?   Just plain text?

  Seems to me that Safari needs something that can actually download multimedia files.

  Thank you

  The role of the reading list is not store actual media, but only links to content in the destination, like the other favorites do. With attention to the copyright and other original content restrictions, you can copy and paste a video link to YouTube in the VLC media player and record the video on the spot.

• I read this topic (I have a lot of questions about Xperia Z2 with lollipop)

  Hello world. I read this topic (I have a lot of questions about Xperia Z2 with lollipop) and I have posted a question, but it seems that no one saw him. That means the following: (how can I install the source application unknown to other users in my phone because it is to the unknown source menu is disabled in the settings-> Security)? This means that I can not install all the apps if I switch to the lollipop? Can someone tell me please the exact meaning of this?

  Thank you.

  It's true, but game store will not need this option checked - loading of a file manager will - but which is not say that the application will work once installed

• Questions about vCSHB 6.5.1 (LAN or WAN and physical vs. virtual secondary server)

  Hello

  I have a few questions about vCSHB 6.5.1:

  1) there are two sets of installation guides: one for secondary physical server and a secondary server.

  What are the main differences between these two scenarios?

  (2) for vCSHB, there are two deployment options: LAN and WAN

  2 (a) which option is most common?

  2 (b) If an option (for example, LAN) works in an environment, can I assume that the other would work as well?
  And what a difference these two options?

  (3) is vCSHB backward compatible? VCSHB 6.5.1 works in an environment where an earlier version (for example vCSHB 6.4) works?

  (4) what version of vCSHB (e.g. vCSHB 6.5 or 6.4 and 6.3) is widely deployed today?

  Thank you.

  (1) there should be nominal differences - what is different is discussed the virtual network set up against the physical network implemented

  2 (a), in my experience LAN configuration is more common because it over a high availability solution oppesed to DR.

  2 (b) not necessarily, you should make sure that the appropriate ports are open

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• Small questions about Dataguard

  Hello

  I have a few questions about Dataguard. I'm new to DG, carry me so for the display of these fundamental questions:

  We plan to install Oracle 12 c to Win 2012 R2 with primary and physical intelligence on different physical servers. We are looking for HA solution, but cannot afford to license CARS. The two primary & Eve are going to be in the same data center connected via a 1 gigabit network. So I have a few questions related to it.

  (a) since both of our primary & Eve is going to be in the same data center with good connectivity. Can I assume that although Data guard is more DR solution, in our case it would be HA solution since we have no network latency.

  (b) is it safe to assume that where primary fails, then the day before can automatically take the role of primary education without any manual intervention, possibly using Dataguard broker?

  (c) so I understand that where primary breaks down, the existing connections transfer automatically from primary to standby db (most recent primary), but how my web based java application will know that more recent connections must be sent to the standby db Server (more recent primary)? I guess net Oracle has a provision to handle this? Who can be automated?

  (d) given that I have only 2 physical servers, can I deploy broker Dataguard on a normal PC (since it is a thin client) assuming the PC is kept in the data center and is online 24/7?

  (e) I was reading about the modes of Protection, account required to our current situation & infrastructure, I choose 'Maximum availability Mode' instead of 'maximum Performance '.

  (f) what is your point of view about Oracle integrated security? I hear too much on Oracle failsafe, because people generally go to a combination of CARS & dataguard for HA? We have a few additional storage that can be shared between the two servers, but I feel with literally no DG network latency can provide us HA.

  Concerning

  Learner

  (a) since both of our main & secondary is going to be in the same data center with good connectivity. Can I assume that although Data guard is more DR solution, in our case it would be HA solution since we have no network latency.

  Well it will not provide the level of HA that is RAC. RAC is a Transparent Application failover. With a physical standby, you need to apply some delay for a failover operation. You can implement the observer that can automate the failover and reduce the time.

  (b) is it safe to assume that where primary fails, then the day before can automatically take the role of primary education without any manual intervention, possibly using Dataguard broker?

  This isn't really the DG broker, but rather the observer you will need to implement. The DG broker automate failover. It will be the observer who "sees" (where its name) that the principal is down and initiate the failover process. To do this, the observer will use the DG broker, so it will be necessary.

  (c) so I understand that where primary breaks down, the existing connections transfer automatically from primary to standby db (most recent primary), but how my web based java application will know that more recent connections must be sent to the standby db Server (more recent primary)? I guess net Oracle has a provision to handle this? Who can be automated?

  You'll want to read on the QuickStart failover. http://www.Oracle.com/technetwork/articles/smiley-fsfo-084973.html

  (d) given that I have only 2 physical servers, can I deploy broker Dataguard on a normal PC (since it is a thin client) assuming the PC is kept in the data center and is online 24/7?

  The DG broker is required to run on the database server. The DG broker will run on the primary and standby. I think that what you're asking really anything is if the observer can run on a PC. Yes it can. However, it is probably not a good idea. A PC will not have the internal hardware redundancy, a server can have. If the PC can fail more often than to a server. And if the gods are bad, it will fail when you most need.

  (e) I was reading about the modes of Protection, account required to our current scenario & infrastructure, I choose 'Maximum availability Mode' instead of 'maximum Performance '.

  Your choice should depend on the amount of data loss is acceptable.

  (f) what is your point of view about Oracle integrated security? I hear too much on Oracle failsafe, because people generally go to a combination of CARS & dataguard for HA? We have a few additional storage that can be shared between the two servers, but I feel with literally no DG network latency can provide us HA.

  Oracle integrated security only works on Windows with a MS Failover Cluster. Real DBAs do not have Oracle on MSFC.

  See you soon,.
  Brian

• Questions about vmware high availability

  Dear all,

  I am new in this area, we intend to deploy vmware 5 in our environment by using the HA, I am a student in this regard. I have a few questions about this, I need assistance by experts in this field:

  -J' read the vmware network redundancy is strongly recommended for the configuration of vmware HA, but I haven't fully?

  -When vmware HA is configured and there are two hosts in the cluster, now when creating a new machine virtual, I need to specify under which host this new virtual machine must reside OR the HA feature will automatically decide on that?

  -When vmware HA is set up and I have two hosts in cluster, a host processors 4physical and 8 GB of RAM, the other host is also even have 4 physical processors and 8 GB of RAM, so for me which are the sets of resources will be presented? I will be display individually for each host resources when you create a new virtual machine, OR I will be presented with a SUM of resources 1 + 2 host resources to play?

  -Is it possible that I assigned 4 vCPU virtual machine and 4 GB Mem and it uses little resources from host 1 and few resources to host 2, as 2 vCPU to host 1 and 2 GB and still host 2vCPU 2 and remains 2GB (given that I am presented with the SUM of the cluster as mentioned in my second question resources)

  -J' read operating system failure when in vmHA particular VM will be restarted on the same host it resides, that means? If the BONE broke down, then when new virtual machine starts, it will be also having fallen copy of OS? I mean how this new machine will be launched, it's a copy identical secondary virtual machine crashed?

  Waiting for your help.

  Kind regards
  Jocelyn

  OK, consider cases that I am only using HA and no DRS, in this case I need to specify under what host to run VM?

  I read the first question again, then please, let me make this clear. When you create a new virtual machine, you must always specify a host and storage.

  Initial investment (when you are powering on a virtual machine) is a feature of the Drs without DRS a virtual machine can only be migrated to another host manually or with the virtual machine shut down (cold migration) or using vMotion (if allowed).

  But because of an event leading to the crash of the OS reboot also not solve the problem, correct me if I understood? This is also true for FT?

  You're right, HA can restart only a virtual machine. If there is a serious issue that causes the BONE invited to plant that regularly, this is not enough and you have to solve the problem manually. FT cannot resolve as she makes it "mirrors" the guest to another host, so it will also reflect a BSOD.

  Yes, FT has still some limitations. However, there are use cases where availability is important and FT is designed to ensure continuous availability in the event of a crash the host.

  André

• Questions about Failver customer and rapid failover

  have some questions about customer and quick Faiolver of Oracle Database HA failover. Before asking these questions, I want to explain my environment. Here are the details.
  
  
  
  -We have two physical locations called "ABC" and "PQR".
  -ABC is the main site.
  -PQR is the backup site.
  -In ABC, we have the database to Oracle RAC (11.2.0.2) with two nodes.
  -In the PQR, we have only one stand-alone server (11.2.0.2) database with ASM. This isn't a RAC.
  -Data Guard has been configured between ABC and PQR and it works as expected.
  -Please note that we have a license for Active Data Guard.
  -We have products of Oracle Identity Management to ABC and PQR and they will use the RAC database as a primary database that is in the CBA.
  -We have not yet set up a Data Guard Broker.
  
  We want to achieve under objectives:
  
  
  Objective 1:
  -------
  
  Whenever primary CARS down completely, standby database becomes a primary database AUTOMATICALLY and it should allow the read/write operation.
  I guess it's called 'Fast Failover'. Please let me know if I'm wrong.
  
  Issues related to the:
  
  -To do this, I need to set up Data Guard Broker so that this standy database becomes primary when CARS go down completely with a power outage, planned or not.
  -Let's say that CARS falls does completely, how long take Data Guard Broker do standby db as primary.
  -What the client application / which is already connected to the CARS.
  -Let's DB standby became as primary and after some time if RAC comes back, keep data automatically becomes the primary role of RAC?
  
  
  Objective 2:
  --------
  
  As I explained above, all products Oracle IDM and applications to speak to the RAC database, what do know only on the RAC database, which is the main. They are not aware of the pending database.
  
  -Whenever a client session is underway with the primary database of CARS if CARS completely falls down, we would like to wait until the client session should get transferred datbase standby without losing session information. However before that happens, standby database should become primary because the client session can perform write operations.
  
  -Whenever a client attempts to connect to the primary CARS and assumes that the cab is completely down, we would like to expect from any client connections should are transferred pending database.
  However before that happens, standby database should become primary because the client session can perform write operations.
  
  According to my knowledge, above scenarios are called "client failver." Please let me know if I'm wrong.
  
  
  
  Issues related to the:
  ----------
  
  1. Please throw some light to reach above features.
  2. According to my understanding, before customer failover happens, fast failover expected has already occurred and ensure should get the switch for the main role. I guess that all this happens thanks to timeout settings. What are those.
  
  
  Could you please help?
  
  Thank you

  I didn't say that clients cannot reconnect automatically when primary fails: I meant that client sessions can generally reconnect and also keep any session state.

  Yes, they can reconnect but only to keep the session state for a SELECT statement. It is also possible with Data Guard, not only in the CARS I wrote: here's a demo with 10 g
  http://uhesse.WordPress.com/2009/08/19/connect-time-failover-transparent-application-failover-for-Data-Guard/.
  What is not possible is to maintain a session state: (INSERT/UPDATE/DELETE) pending transactions must be cancelled.

  Edited by: P. Forstmann on Dec 8. 2011 20:30

• Question Basic setting, ask questions about the buffer cache

  Database: Oracle 10g
  Host: Sun Solaris, 16 CPU server
  
  
  
  I look at the behavior of some simple queries that I start the tuning of our data warehouse.
  
  Using SQL * more and AUTOTRACE, I ran this query two times in a row
  
  SELECT *.
  OF PROCEDURE_FACT
  WHERE PROC_FACT_ID BETWEEN 100000 AND 200000
  
  He finds the index on PROC_FACT_ID and conducted an analysis of the range of indexes to access the data in the table by rowid. The first time, that it ran, there are about 600 physical block reads as data in the table were not in the buffer cache. The second time, he had 0 physical block reads, because they were all in the cache. All this was expected behavior.
  
  So I ran this query twice now,
  
  SELECT DATA_SOURCE_CD, COUNT (*)
  OF PROCEDURE_FACT
  DATA_SOURCE_CD GROUP
  
  As expected, he made a full table scan, because there is no index on DATA_SOURCE_CD and then chopped the results to find the different DATA_SOURCE_CD values. The first run had these results
  
  compatible gets 190496
  physical reads 169696
  
  The second run had these results
  
  compatible gets 190496
  physical reads 170248
  
  
  NOT what I expected. I would have thought that the second run would find many of the blocks already in the cache of the pads of the first execution, so that the number of physical reads would drop significantly.
  
  Any help to understand this would be greatly appreciated.
  
  And is there something that can be done to keep the table PROCEDURE_FACT (the central table of our star schema) "pinned" in the buffer cache?
  
  Thanks in advance.
  
  -chris Curzon

  Christopher Curzon wrote:
  Your comment about the buffer cache used for smaller objects that benefit is something that I asked about a good deal. It sounds as if tuning the buffer cache will have little impact on queries that scan of entire tables.

  Chris,

  If you can afford it and you think it is a reasonable approach with regard to the remaining segments that are supposed to benefit the buffer cache, you can always consider your segment of table with 'CACHE' that will change the behavior on the full of a broad sector table scan (Oracle treats small and large segments differently during the execution of table scans complete regarding the cache of) marking stamps, you can override this treatment by using the CACHE. NOCACHE keyword) or move your table of facts to a DUNGEON hen establishing a (ALTER SYSTEM SET DB_KEEP_CACHE_SIZE = ), modify the segments (ALTER TABLE... STORAGE (USER_TABLES KEEP)) accordingly and perform a full table scan to load blocks in the cache of the DUNGEON.

  Note that the disadvantage of the approach of the KEEP pool is that you have less memory available for the default buffer cache (unless you add more memory on your system). When an object to mark as being cached is always is in competition with other objects in the cache buffers by default, so it could still be aged out (the same applies to the pool of DUNGEON, if the segment is too large or too many segments are allocated age blocks out as well).

  So my question: How can I get for a parallel analysis on queries that use a table scan complete such as what I posted in my previous email? It is a question of the provision of the "parallel" indicator, or is it an init.ora parameter I should try?

  You can use a PARALLEL hint in your statement:

  SELECT /*+ PARALLEL(PROCEDURE_FACT) */ DATA_SOURCE_CD, COUNT(*)
  FROM PROCEDURE_FACT
  GROUP BY DATA_SOURCE_CD;
  

  or you could mark an object as PARALLEL in the dictionary:

  ALTER MATERIALIZED VIEW PROCEDURE_FACT PARALLEL;
  

  Note that since you have 16 processors (or 16 cores that resemble Oracle 32? Check the CPU_COUNT setting) the default parallel degree would be usually 2 times 16 = 32, which means that Oracle generates at least 32 parallel slaves for a parallel operation (it could be another set of 32 slaves if the operation for example include a GROUP BY operation) If you do not use the PARALLEL_ADAPTIVE_MULTI_USER parameter (which allows to reduce the parallelism if several parallel operations running concurrently).

  I recommend to choose a lesser degree parallel to your default value of 32 because usually you gain much by such a degree, then you can get the same performance when you use lower a setting like this:

  SELECT /*+ PARALLEL(PROCEDURE_FACT, 4) */ DATA_SOURCE_CD, COUNT(*)
  FROM PROCEDURE_FACT
  GROUP BY DATA_SOURCE_CD;
  

  The same could be applied to the paralleling of the object:

  ALTER MATERIALIZED VIEW PROCEDURE_FACT PARALLEL 4;
  

  Note When defining the object of many operations in PARALLEL will be parallelisee (DML even can be run in parallel, if you enable dml parallel, which has some special restrictions), so I recommend to use it with caution and begin with an explicit indication in those statements where you know that it will be useful to do.

  Also check that your PARALLEL_MAX_SERVERS is high enough when you use parallel operations, which should be the case in your version of Oracle.

  Kind regards
  Randolf

  Oracle related blog stuff:
  http://Oracle-Randolf.blogspot.com/

  SQLTools ++ for Oracle (Open source Oracle GUI for Windows):
  http://www.sqltools-plusplus.org:7676 /.
  http://sourceforge.NET/projects/SQLT-pp/

• where to post a question about iTunes on the iPhone?

  I have a question about a problem with iTunes on the iPhone (iOS), but I do not see a 'Community' with this title (or anything close;  I have no idea what "iTunes U" means).

  For lack of a better idea, I just posted to the community "iTunes for Mac", but I don't think that's true.

  Please let me know where I should post to an iTunes on iPhone issue.  Thank you.

  It should probably be posted in the community Using iPhone Apple Support communities. I'll ask a host spend your question in iTunes for Mac, if it has not already been moved.

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• Question about "Windows 8.1 DG to Windows 7 Pro 64-bit" and Windows product key

  I have acquired a recnet ThinkPad T450 fdrom a retialer online (NCIX) and I hav ea a few questions about the installed Windows operating system.

  Before I just go further, HRE are some information about my particular system.

  Lenovo ThinkPad T450

  Model: 20BV00BUS

  CPU: Intel Core i5-4300U

  RAM: 4 GB

  Under the product description, it was stated "Windows 8.1 DG Windows 7 Pro 64." My understnading, the ThiknPad has been installed with Windows 8.1, but downgraded to Windows 7. There is also a Windows 8 Pro badge sticker at the bottom of the matchine.

  Is it possible, at the end of the user/consumer, to alter the functioning ti repressive back Windows 8.1?

  Can I create a recovery with Windows 8.1 disk?

  A separate but related matter relates to the Windows product key.

  I noticed the Ultrabook do not come with a sticker / label with the Windows product key (i.e. COST). Some quick research indicated that the Windows key is programmed into the BIOS.

  This indeed true (I wish an audit)?

  The key is visible in some way (for when you need to reinstall the operating system. I have not tried to enter the BIOS at the moment)?

  Thank you for taking the time to consider my question.

  Kind regards

  Victor L.

  Hi Victor,

  I'm in the same boat as you type, but want to keep the facilities of Windows 7 rather than pass them to 8. Just like you, I buy our Lenovo from different retailers and they come with windows 7 installed through the Windows 8 lower upgrade program.

  We had one or two laptops come with a recovery media (for windows 8/8.1 only) but have noticed that all laptops now come with no physical media or codes for the recovery. WIN8 stickers, you described is more came with the license key on the sticker (it comes to stop you using the same license again and again, microsoft will get more money if you buy another license etc.). I also saw that the key is essentially located in the BIOS but were not able to test what we use any of windows 8. I use it even at home!

  To answer your question, you can get a recovery of Lenovo for Windows 8 media!

  Go to the following link: https://support.lenovo.com/us/en/lenovorecovery

  (It help you understand why this method is used on this page as well)

  Select Start,

  Please have your serial number of your laptop, (to find it go to this link: https://support.lenovo.com/us/en/find-product-name)

  If you qualify (which you will very probably) Lenovo will ship for free, recovery disks give it a go, took me 2 minutes.

  I hope this helps.

  Best regards, Max.

• Questions about Satellite P10 554

  Hello

  I have 2 questions about my P10-554. I read on this forum but can't find anything that helps out me.

  First of all:
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  I can't say that to me...

  Second:
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  Best regards
  Gabbagandalf

  Hello

  Regarding your first question;
  I'm a bit confused of m are sure you n t use the restart option?
  I never noticed anything like that on my laptop

  Usually, if I use the Shut down option, I can choose between standby, hibernation, restart and shutdown. If I use the stop that the laptop turns off as it should.
  Maybe it's time to s for a reinstallation of the OS?

  On the second question.
  The switch on the left side for laptop was designed and developed to pass on the WLan card antenna.
  Usually, you should be able to use this switch and to toggle WLan card functionality

  Don t understand why it should not work?  :|

• Question about the new Yoga 10 HD +.

  Hello

  A few questions about the new Yoga 10 HD + that I hope you can answer.

  I bought the former model, last year. Love the design and long battery life, but a few major questions made me return.

  • Somewhere that I've read that it can not read NTFS on USB so I guess that's the same thing with a NTFS formatted microSD card?
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  So to avoid buying it back it also I really I would like to see if I can get my questions answered before buy you.

  While I love the form factor and long term issues above are only two Mayor dealbreakers for me. Bad audio quality = no joy listen to spotify, local etc. MP3s. not of NTFS or exFAT = some great movies.

  My old noname android Tablet really could use an upgrade so I'm really curious it may be, or I should watch the competition and will be form factor and battery LIFE.

  Thanks in advance.

  EDIT:

  If it does not support NTFS or exFAT on microSD card have someone at - he tried ext3 or ext4?

  I mean with Linux Android root, it should be a no-brainer to support at least when it comes to royalties unlike NTFS or exFAT where it * might * have some trouble with Microsoft.

  I used a USB through a USB OTG cable. NTFS or exFAT have been recognized by the Tablet PC. FAT32 is seems to be the preference.

• Hello Mr President! I have a few questions about the Word report generation please.1.How can I add a border to a page in word? 2. How can I add gridlines to a table generated related word?. Can 3. how I add a border to a picture of the Word report?. Thank

  Hello!

  Sir, I have a few questions about generating word reports using (C language in labwindows) please.

  1. How can I add a border to a page in word?

  2. How do I add border lines and grid to a table generated in Word report (not "cvi control table"inserted from gui, I wonder about the table generated in Word report)?

  3. How can I fill a table cell of report word with the data type other than 'character '.

  And sir a question on the use of the timer in labwindows cvi please.

  Sir, I'm trying to set a time minimum interval timer to 1millisecond (0.001 s), that I have set, timer cares about the interval set by me he only meets the minimum default time interval which is, I think as 10milliseconds (I'm using windows xp service Pack 3 version 2002).

  Concerning

  Imran

  Pakistan

  Have you read this statement ? It explains how to set the registry value:

  If the REG_SZ useDefaultTimer does not already exist, you must create it under HKEY_LOCAL_MACHINE\SOFTWARE\National Instruments\CVI Run-Time Engine\cvirte. "" This can be done navigate to the appropriate folder, and then click Edit "New" string value. Then, click on means the name of the new value created, select Rename, and then specify useDefaultTimer as the name. Finally, double click on the name and specify the value True or False.

• question about cleaning the sensor of the A57

  Dear community of Sony,

  I have several questions about the cleaning of the sensor of the A57.

  Recently, I noticed several dark specs appearing on images when shooting at low opening (F20, F22), especially when there are high for them (like the sky in a landscape photo) contrast. To my knowledge, I've categorized as possible of dust on the sensor. I have read the section of the manual about cleaning the sensor and followed the procedure. However, the problem remained. I have previous experience with cleaning of the more resistant the probe of a Sony NEX dust particles, so I applied it to the A57. I used the specialized sensor cleaning tools combining two parts kit - wet and dry. Noted little dust on translucent mirror as well, so I cleaned up afterwards. Later, I considered this mirror could have some specialized coatings.

  So my first question is: should I have done some permanent damage the mirror or the sensors? Currently, the camera works OK, although some features of dust still remain. It seems that I had pushed some of them to the edges of the sensor.

  I'm not so happy with the tool that I used. I'm thinking about this one for a more thorough cleaning:

  http://www.digitaltoyshop.co.UK/Eyelead_sensor_cleaning_kit_SCK-1_Sony_Alpha_A57_t2836_6789

  It is marketed as a tool for A57. Should I use it?

  Thank you in advance?

  Best regards Angel Marinov

  PS: I'm really happy with my Sony A57 and the NEX. They made me a fan of Sony. So, I want to use this topic to also say thank you to the developers of Sony.

  Hello Angel!

  Read the following steps carefully and let us know if you have any other questions.

• Question about local variable in LabVIEW

  I am a new bie to LabVIEW.

  I have a question about local variable in LabView.

  I tried to stop a loop by the local variable, but the value of the loop for counter is different with my hope.

  I think that the loop to stop at 6, but he stopped at 7.

  Could someone help me?

  This looks exactly like a race condition.  You have know control if the control terminal is first in reading or the local variable is written to the first.

  Try to run your code to highlight execution.

  In your code, what usually happens is that order is read and the value is false.  Then the other code will run allowing the value to write to the local variable.  Let's say that in a particular loop iteration, we get the True value.  But control of the final value has already been read as false, then the loop runs again.  The next iteration of the Terminal is read and then he sees the true, will force to stop no matter what happens in the rest of the loop the loop.

  So, why do you use a local variable instead of sending just the wire to the terminal stop?