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Re: multiple access bog down on HP-UX 11i

From: Ryan Hunt <rhunt_at_hp.com>
Date: 2003-11-13 22:35:26 CET

So I spoke too soon when I said it does not occur with a
checkin/checkout combo.

I just got a report of the same thing happening. In the following
listing you can see how the rate that the log files are created slows
right down... There are quite a few logfiles created on 13:55, and
fewer on 13:56, and from there it is all down hill.

-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159496
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159497
-rw-rw-r-- 1 abowman users 1042794 Nov 13 13:55
db/log.0000159498
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159499
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159500
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159501
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159502
-rw-rw-r-- 1 abowman users 1042794 Nov 13 13:55
db/log.0000159503
-rw-rw-r-- 1 abowman users 1042794 Nov 13 13:55
db/log.0000159504
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159505
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159506
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159507
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159508
-rw-rw-r-- 1 abowman users 1042794 Nov 13 13:55
db/log.0000159509
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159510
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159511
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159512
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159513
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159514
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159515
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:55
db/log.0000159516
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:55
db/log.0000159517
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159518
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159519
-rw-rw-r-- 1 abowman users 1040536 Nov 13 13:56
db/log.0000159520
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159521
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159522
-rw-rw-r-- 1 dprosser users 1040536 Nov 13 13:56
db/log.0000159523
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159524
-rw-rw-r-- 1 dprosser users 1042794 Nov 13 13:56
db/log.0000159525
-rw-rw-r-- 1 dprosser users 1048515 Nov 13 13:59
db/log.0000159526
-rw-rw-r-- 1 dprosser users 1048562 Nov 13 14:04
db/log.0000159527
-rw-rw-r-- 1 dprosser users 1048262 Nov 13 14:13
db/log.0000159528
-rw-rw-r-- 1 dprosser users 1048523 Nov 13 14:18
db/log.0000159529
-rw-rw-r-- 1 dprosser users 941327 Nov 13 14:24
db/log.0000159530

notice how long it takes to write that last 5 log files...

-Ryan

On Thursday, November 13, 2003, at 01:50 PM, Ryan Hunt wrote:

>
> On Thursday, November 13, 2003, at 01:32 PM, Philip Martin wrote:
>
>> Ryan Hunt <rhunt@hp.com> writes:
>>
>>>>> The import is killed mid stream.
>>
>> What does this mean? Do you manually abort the import? Does the
>> system kill the client or the server? Does the server abort?
>>
> I manually abort the process because at the slow data rate it would
> take nearly 3 weeks to complete the transaction.
>
>> If the process accessing the repository (the server) is killed or
>> aborts while it is holding BDB locks then it is quite likely that the
>> repository will have problems.
>>
> Exactly, so after the kill I run a svnadmin recover.
>
> I can then resume checkouts or imports, but not both simultaneously.
>
> This does not appear to be a problem with checkins and checkouts, only
> imports and checkouts.
>
> --Ryan
>
>
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Received on Thu Nov 13 22:32:56 2003

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