What is the 'U' state in process listings from 'ps'

Argh argh argh argh argh.
Right.
So I am using two Mac OS X Server 10.3.9 boxes (xServes) as backup machines, one for an office and one for a colo site. Work great with some custom scripts to do the heavy lifting, and it all calls rsync, which works like a champ. Except twice now, the backups have finished copying all the files, and then the last rsync (the big one) hasn't exited properly. Or, rather, it hasn't exited at all. If I do a 'ps', it appears in the process listing with a status of 'U', which isn't even listed in the manual page for ps.
rsync 1 has a parent of my backup script
rsync 2 has a parent of rsync 1
rsync 3 has a parent of rsync 2
If I kill rsync 1, nothing happens. If I kill -HUP rsync 1, nothing happens. If I kill -9 rsync 1, NOTHING HAPPENS.
If I kill rsync 2, rsync 3 dies. If I kill -HUP rsync 2 (after rsync 3 is gone), nothing happens. If I kill -9 rsync 2, it turns into a zombie process.
I don't know what happens if I kill rsync 3.
If I kill the parent process to rsync 1, I don't get any of the useful information about what went wrong and what didn't in my backups. The frustrating thing is, before it got into this wedged position, it FINISHED EVERYTHING. So I'm getting notifications that my backup didn't work, when it did, and not getting notifications of the two (minor) errors that DID occur.
Sometimes I hate computers.

Adam,
it mean that the process is in the kernel, and waiting on some event. And is ignoring any interruptions like signals. Which is the kill command isn't getting the processes attention. It's possible that the process may resume at some point or not. if the process doesn't switch back to a user context, then the only way to get rid of the it, and thus free the resources that it's using, would be a system reboot.
Andy
from the ps(1) manpage.
state The state is given by a sequence of letters, for example,
``RWNA''. The first letter indicates the run state of the
process:
I Marks a process that is idle (sleeping for longer than
about 20 seconds).
R Marks a runnable process.
S Marks a process that is sleeping for less than about 20
seconds.
T Marks a stopped process.
U Marks a process in uninterruptible wait.
Z Marks a dead process (a ``zombie'').

Similar Messages

What is the best approach to process data on row by row basis ?

Hi Gurus,
I need to code stored proc to process sales_orders into Invoices. I
think that I must do row by row operation, but if possible I don't want
to use cursor. The algorithm is below :
for all sales_orders with status = "open"
check for credit limit
if over credit limit -> insert row log_table; process next order
check for overdue
if there is overdue invoice -> insert row to log_table; process
next order
check all order_items for stock availability
if there is item that has not enough stock -> insert row to
log_table; process next order
if all check above are passed:
create Invoice (header + details)
end_for
What is the best approach to process data on row by row basis like
above ?
Thank you for your help,
xtanto

Processing data row by row is not the fastest method out there. You'll be sending much more SQL statements towards the database than needed. The advice is to use SQL, and if not possible or too complex, use PL/SQL with bulk processing.
In this case a SQL only solution is possible.
The example below is oversimplified, but it shows the idea:
SQL> create table sales_orders
2 as
3 select 1 no, 'O' status, 'Y' ind_over_credit_limit, 'N' ind_overdue, 'N' ind_stock_not_available from dual union all
4 select 2, 'O', 'N', 'N', 'N' from dual union all
5 select 3, 'O', 'N', 'Y', 'Y' from dual union all
6 select 4, 'O', 'N', 'Y', 'N' from dual union all
7 select 5, 'O', 'N', 'N', 'Y' from dual
8 /
Tabel is aangemaakt.
SQL> create table log_table
2 ( sales_order_no number
3 , message        varchar2(100)
4 )
5 /
Tabel is aangemaakt.
SQL> create table invoices
2 ( sales_order_no number
3 )
4 /
Tabel is aangemaakt.
SQL> select * from sales_orders
2 /
        NO STATUS IND_OVER_CREDIT_LIMIT IND_OVERDUE IND_STOCK_NOT_AVAILABLE
         1 O      Y                     N           N
         2 O      N                     N           N
         3 O      N                     Y           Y
         4 O      N                     Y           N
         5 O      N                     N           Y
5 rijen zijn geselecteerd.
SQL> insert
2    when ind_over_credit_limit = 'Y' then
3         into log_table (sales_order_no,message) values (no,'Over credit limit')
4    when ind_overdue = 'Y' and ind_over_credit_limit = 'N' then
5         into log_table (sales_order_no,message) values (no,'Overdue')
6    when ind_stock_not_available = 'Y' and ind_overdue = 'N' and ind_over_credit_limit = 'N' then
7         into log_table (sales_order_no,message) values (no,'Stock not available')
8    else
9         into invoices (sales_order_no) values (no)
10 select * from sales_orders where status = 'O'
11 /
5 rijen zijn aangemaakt.
SQL> select * from invoices
2 /
SALES_ORDER_NO
             2
1 rij is geselecteerd.
SQL> select * from log_table
2 /
SALES_ORDER_NO MESSAGE
             1 Over credit limit
             3 Overdue
             4 Overdue
             5 Stock not available
4 rijen zijn geselecteerd.Hope this helps.
Regards,
Rob.

What's the recommended setting for "Process memory usage" ("process virtual" in UI) for a 64-bit host on a 64-bit OS?

Hi gurus
In resource based throttling, what's the recommended setting for "Process memory usage" ("process virtual" in the resource based throttling tab of the UI) for a 64-bit host
on a 64-bit Windows OS?
According to MS (http://msdn.microsoft.com/en-us/library/ee308808(v=bts.10).aspx):
"By default, the
Process memory usage throttling threshold is set to 25. If this value is exceeded and the BizTalk process memory usage is more than 300 MB, a throttling condition may occur. On a 32-bit
server, you can increase the Process memory usage value to 50. On a 64-bit server, you can increase this value to 100. This allows for more memory consumption by the BizTalk process before throttling
occurs."
Does this mean that 100 is the recommended setting for a 64-bit host on a 64-bit Windows?
Thanks
Michael Brandt Lassen

Hi Michael,
Recommended setting is the default setting which is 25 .dot.
If your situation is abnormal and you see message delivery throttling state to “4” when the following performance counters are high or if you expect any of you integration
process could have impact on following counters, then you can consider the suggestion by Microsoft. Don’t change the default setting.
High process memory
Process memory usage (MB)
Process memory usage threshold (MB)
You can see these counters under “BizTalk:MessageAgent”
You can gauge these performance counter and its maximum values if have done any regression/performance testing in your test servers. If you have seen these counters having
high values and causing throttling, then you can update the Process memory usage.
Or unexpectedly you’re process high throughput messages in production which is causing these counters to go high and cause throttling, then up can update the Process memory
usage.
The above two cases where I know my expected process usage (by doing performance testing) or suddenly my production server processing has gone high due to unexpected business
hike (or any reasons) which caused throttling, then do changes to default throttling setting.
Just changing the default setting without actual reason could have adverse effect where you end up allocating
more processing capacities but the actual message processing message usage ever is low means you end up investing in underutilised resources.
Regards,
M.R.Ashwin Prabhu
If this answers your question please mark it accordingly. If this post is helpful, please vote as helpful by clicking the upward arrow mark next to my reply.

What is the difference for page processes in Firefox and IE?

I created a page that has a bunch of precesses all fired in the correct order in Firefix and every item is shown with the correct value.
Unfortunately I was naive enough to believe that in Ie this would work as well, but for some reason items are not filled by the very same processes, and urls I am creating with them do no contain the values I fetched with the processes.
Can anyone explain to me how I fill a lot of items and what the importance of order in the html page is?

An HTML DB process is a server side thing, regardless of the browser used. What processes are you referring to? Processes you wrote or the builtin processes like Automatic DML and row-fetch? Are these onload or after submit processes? What does the Session State popup show in IE? The best way to "fill a lot of items" if they are all coming from the same table/view is to use the builtin row fetch process.
Hope this helps.

Stopping the schema stats gathering process

Hi,
I have a large schema in my DB (7 TBs) on which I had triggered a UNIX background job to compute the statistics on that schema. The SQL which i had used was:
EXEC DBMS_UTILITY.ANALYZE_SCHEMA('<<schema_name>>','COMPUTE');
However, since the size of the schema is quite big, this stats computation process is running since the last 7 hours and I am not sure about the time it would take to finish with this process.
My questions are as below:
1. Is there any method to determine the status of this stats computation process?
2. If I kill this background job because i now have to run other data loading jobs on the schema and I dont want them to error out because of the exclusive locks on those objects, will it affect the DB performance in any way?
3. If i kill this background process, will the entire stats computation process be rolled back or would it be stopped at the place from where it was halted?
Kindly advice.
Thanks in advance.

Hi,
Thanks for the prompt response. I agree that i should be using dbms_stats and estimate for computing the schema stats. I re-analyzed the tables under the schema yeterday and hence i hope i should not face the incorrect cardinality info problem now.
However, I am facing another problem with the DB now. As a result of the data loading operation on the table, i see that all the subsequent DML operations are now taking a long log time to complete, typically 30 mins for a 10 seconds operation earlier.
What do you suggest is causing the problem and needs rectification?
Thanks in advance.

What is the Extract statement? Please give me some sample code.?

What is the Extract statement? Please give me some sample code.?

Hello ,
Once you have declared the possible record types as field groups and defined their structure, you can fill the extract dataset using the following statements: EXTRACT . When the first EXTRACT statement occurs in a program, the system creates the extract dataset and adds the first extract record to it. In each subsequent EXTRACT statement, the new extract record is added to the dataset EXTRACT HEADER. When you extract the data, the record is filled with the current values of the corresponding fields. As soon as the system has processed the first EXTRACT statement for a field group , the structure of the corresponding extract record in the extract dataset is fixed. You can no longer insert new fields into the field groups and HEADER. If you try to modify one of the field groups afterwards and use it in another EXTRACT statement, a runtime error occurs. By processing EXTRACT statements several times using different field groups, you fill the extract dataset with records of different length and structure. Since you can modify field groups dynamically up to their first usage in an EXTRACT statement, extract datasets provide the advantage that you need not determine the structure at the beginning of the program.
Sample program:
REPORT ZSPFLI LINE-SIZE 132 LINE-COUNT 65(3)
                                             NO STANDARD PAGE HEADING.
TABLES:SPFLI,SCARR, SFLIGHT, SBOOK.
SELECT-OPTIONS: MYCARRID FOR SPFLI-CARRID.
FIELD-GROUPS: HEADER, SPFLI_FG, SFLIGHT_FG, SBOOK_FG.
INSERT:
        SPFLI-CARRID
        SPFLI-CONNID
        SFLIGHT-FLDATE
        SBOOK-BOOKID
       INTO HEADER,
        SPFLI-CARRID
        SPFLI-CONNID
        SPFLI-CITYFROM
        SPFLI-AIRPFROM
        SPFLI-CITYTO
        SPFLI-AIRPTO
        SPFLI-DEPTIME
        SCARR-CARRNAME
      INTO SPFLI_FG,
        SFLIGHT-FLDATE
        SFLIGHT-SEATSMAX
        SFLIGHT-SEATSOCC
        SFLIGHT-PRICE
      INTO SFLIGHT_FG,
        SBOOK-BOOKID
        SBOOK-CUSTOMID
        SBOOK-CUSTTYPE
        SBOOK-SMOKER
       INTO SBOOK_FG.
SELECT * FROM SPFLI WHERE CARRID IN MYCARRID.
SELECT SINGLE * FROM SCARR WHERE CARRID = SPFLI-CARRID.
EXTRACT SPFLI_FG.
SELECT * FROM SFLIGHT
   WHERE CARRID = SPFLI-CARRID AND CONNID = SPFLI-CONNID.
    EXTRACT SFLIGHT_FG.
    SELECT * FROM SBOOK
           WHERE CARRID = SFLIGHT-CARRID AND
           CONNID = SFLIGHT-CONNID AND FLDATE = SFLIGHT-FLDATE.
      EXTRACT SBOOK_FG.
      CLEAR SBOOK.
    ENDSELECT.
    CLEAR SFLIGHT.
ENDSELECT.
CLEAR SPFLI.
ENDSELECT.
SORT.
LOOP.
AT SPFLI_FG.
    FORMAT COLOR COL_HEADING.
    WRITE: / SCARR-CARRNAME,
             SPFLI-CONNID, SPFLI-CITYFROM,
             SPFLI-AIRPFROM, SPFLI-CITYTO, SPFLI-AIRPTO, SPFLI-DEPTIME.
    FORMAT COLOR OFF.
ENDAT.
AT SFLIGHT_FG.
    WRITE: /15 SFLIGHT-FLDATE, SFLIGHT-PRICE, SFLIGHT-SEATSMAX,
               SFLIGHT-SEATSOCC.
ENDAT.
AT SBOOK_FG.
    WRITE: /30 SBOOK-BOOKID, SBOOK-CUSTOMID,
                 SBOOK-CUSTTYPE, SBOOK-SMOKER.
ENDAT.
ENDLOOP.

I am trying to connect my iMac with my MacBook What is the command keys and process in doing so. Have firmwre in place.

I am trying to connect my iMac with my MacBook What is the command keys and process in doing so. Have firmwre in place.

Here's the Apple Support article on Target Mode http://support.apple.com/kb/HT1661

What is the request state value to shutdown VM using hyper-v?

As we know request state value 3 is used to turnoff VM , what is the request state value to shutdown hyper-v VM ? Is there any different ways to shutdown hyper v VM using C# wmi?
Regards
Venki

This forum is for Windows Embedded Standard 8. Please post to the hyper-V forum is here:
https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserverhyperv
www.annabooks.com / www.seanliming.com / Book Author - Pro Guide to WE8S, Pro Guide to WES 7, Pro Guide to POS for .NET

What is the step by step process to create a table in data dictionary?

hi,
What is the step by step process to create a table in data dictionary?
regards.

sorry, question resolved.

What is the best free word processing or office program for OS X Mountain Lion

What is the best free word processing or office program for OS X Mountain Lion?

"Best" is quite subjective. As William points out, TextEdit may be the "best" in someones eyes as it isn't cludged up with crap you don't need.
What are your requirements?
Basic text editing?
Do you need:
Table of Contents
Index
Footnote/endnote management
Different headers/footers
Page Layout
What are you going to use it for?
Technical Reports
Screenplay
Leaflets and newsletters
Coding

What are the varoius type of process chain errors how we can solve them.

Hi,
I need to work with process chains maintainace , Can any body tell me what are the different type of process chain errors generelly we used to get ,how we can solve them . IF possible please provide me any document also so that i can solve my
abnormal problems for process chain errors.
Thanks in advance .

Hi,
1) Invalid characters while loading: When you are loading data then you may get some special characters like @#$%...e.t.c.then BW will throw an error like Invalid characters then you need to go through this RSKC transaction and enter all the Invalid chars and execute. It will store this data in RSALLOWEDCHAR table. Then reload the data. You won't get any error because now these are eligible chars done by RSKC.
2) IDOC Or TRFC Error: We can see the following error at u201CStatusu201D Screen:Sending packages from OLTP to BW lead to errorsDiagnosisNo IDocs could be sent to the SAP BW using RFC.System responseThere are IDocs in the source system ALE outbox that did not arrive in the ALE inbox of the SAP BW.Further analysis:Check the TRFC log.You can get to this log using the wizard or the menu path "Environment -> Transact. RFC -> In source system".Removing errors:If the TRFC is incorrect, check whether the source system is completely connected to the SAP BW. Check especially the authorizations of the background user in the source system.Action to be taken:If Source System connection is OK Reload the Data.
For more errors and solutions go thorugh the link below
http://indelasap.blogspot.com/2009/04/sap-bi-production-support-issues.html
Regards,
Marasa.

HT4113 What is the step by step process to unlock my disabled ipad?

What is the step by step process to unlock my disabled ipad?

Try and force iPad into Recovery Mode
1. Disconnect the USB cable from the device, but leave the other end of the cable connected to your computer's USB port.
2. Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.
3.While pressing and holding the Home button, reconnect the USB cable to the device. The device should turn on.
4. Continue holding the Home button until you see the "Connect to iTunes" screen. When this screen appears, release the Home button. iTunes should alert you that it has detected a device in recovery mode. Click OK, and then click Restore to restore the device.
Note: Data will be lost. You may have to repeat the above many times.

How to find what are the select statements fired on a particular schema

Hi Guys,
I have a development box schema whose username and the password is shared across many users who are doing the developement.
I wnat to know what are the select statement fired on it during a particular time interval.
Thanks,
Prafulla

with dba user
BEGIN
DBMS_FGA.ADD_POLICY(object_schema => 'schemaname',
object_name => 'CALLS',
policy_name => 'CALLS_AUDIT',
statement_types => 'SELECT'
…enable => TRUE);
END;
then all select are viewed on table dba_fga_audit_trail
Edited by: Adigozalov Gurban on Dec 3, 2010 11:05 AM

What is the different between Oracle Process Manuf and Oracle Discrete Manufatur in oracle?

Dear What is the different between Oracle Process Manufacturing and Oracle Descret Manufacturing in Oracle?

Hi Elad,
Depending on the requirement and the availability we go with implementing a particular database.
For xi point of view there is no difference between oracle and SQL database. However you need to intall the drivers of SQL.
Even there is no difference in the communication channel configuration.
Reward points if found helpful.
Thanks & Regards,
Bharath.

What are the diffrent ways to copy data from one application to another?

Hi,
Can you guys tell me what are the different ways to copy data from one application to another application??
I know we can do it through script logic using DESTINATION_APP.
Is there any other way to copy data from one application to another application?
Please help me
Thanks,
Charly

You can also call a custom DTSX package in SSIS via the datamanager.
there are at least 5 ways of transfering data in BPC between apps.
1. Through the front end (excel etc) via evdre/evsnds
2. Through Script logic using *Dest App
3. Using BPC's standard export dtsx package via DM
4. Using SSIS using BPC's custom SSIS tasks
5. Through Script logic using stored procs.
i am sure people will come up with more.
remember if you use ssis and move data into any table but the wb, you need to process the cube afterwards.

What is the 'U' state in process listings from 'ps'

Similar Messages

Maybe you are looking for