Somebody has asked me to send this (i will post the original in Russian and 
then 
the translation done by me) (please note that i don't really think that all of 
this makes sense, i'm an interpreter)

== Original ==
????????????? USK ??? ?????????? ARK ????? ????? ??????????. ???? ?? ???: ??? 
?????? ????? IP, ???????? ??? ????????? ?????? ???? ??? ??? ????????????? 
???????? ?????, ????? ?????? ARK ?????? ?????????????, ??? ???? ?? ???????????, 
???????? ?? ?????????? ?????????? ?????? - ? ??? ????? "???????" ?? ????, ???? 
????? ???????????? ??????????????? ?????? ????. ? ??????????, ??????, 
?????????? 
????? ?????????? "????????" ? ?????????????????? ?????? ARK ?????? ????? 4 
??????, ??????????? ??? ?????? ??????? USK - ? ????? "???????" ???????? ARK 
??????????? ??????????. ??? ???????? ????? ??? ????, ?????????? ?? 
????????????? 
? ??????? ???????????? IP.
????????? ??????? ????? ???? ?????? ?????? ARK ?????? ??????, ?????? ??? 
????????? ??? ?? ????????? ??????????? ?????? ?????? ?? 5 ?? 100 ?? ????????? ? 
????????? (??????????? ????????????? ??????????? ?? ???????????, ? ???????? ?? 
???????? ??????????). ??? ?????? ????? ?????? ?? 4, ? 44 ??????????? ??????.

?????? ??????? ?????????? USK/SSK ?????? ? ?????????? ????????? ??????? 
????????? ?????? ????????? ?????? SSK, ????? ?????????? ?????? ???????. ???? 
??? 
??????????? ????, ??? ?????? ????????? ???????? ???????? SSK ? ??? ????????? 
???????, ????? ????????? ???????? ??????? ? ???????? ?? ???? ?????????. ? 
?????????, _???_ ????????? ??? ???? ????????, ??? ?????????? ??? ??????? ? 
????, 
? ??? ?????????? ????? ?????????? ?????? ?? ?????????????. ? ?????? (?? 
?????????????) ?????? ??? ???????? ???????? ?? ?? ?????????? ? ????? ??????? 
SSK. ?????????? ?????????? ???????? ???? ?? ????????? ? ???? ????????? ?????? 
SSK ? ?????? ?????? ? ????????? ??????? ? ??????????????? ??????????? ? ???, 
????? ????????? ????????? ?????????? SSK. ??? ?????? ????????? ?????? 
????????????? ?????????? ?????????? ?????????. ? ?????????, ???? ???? ??????? 
???????? ??? ???????????? ?????? ?? ??????????, ????????? ????????? ?????????? 
????? ?????? SSK - ????? ???? ?????? ???????? ??????? ????????? ???????.
????????? ??????? ????? ???? ??? ?????????? ????? ???????? ?????????? ????????? 
?????? SSK ?? ????????? ?????????? ? ???? ????? ????? ??????? ????????? 
????????? ????????? ? ???, ??? ???? ??????? ???????????? ????????? ??????. ??? 
???????? ?????? ???????, ????? ????????? ????????? ???? ??? ????????? ???? 
?????? ??? ????: ????????? ?????? (??? ? ?????? ???????), ????????????????? 
???????????? (?? ???? ????, ? ?? ????????? ????????? ????????? ?????????? ? 
???????? ? ???????????) ??? ?????? ????????? ??????????? ????????? ?????? SSK, 
?? ???? ?????????? ????????? SSK ? ?????? ?????? ?? ??? ?????? ? ?????????? 
?????? - ?????? ????????? ??? ??? ?????? ? ??????? (??? ?? ??????? ???? 
????????????? ?????? ?????????? ??? ??????? ??????????????).
??? ????? ? ??? ?????? ARK, ????????? ????? ????? ???????????? ???? ??? 
????????????? ?????? ?????? ARK, ?? ??? ???? ?????????? ????????? ?????????, 
??? 
????????? ?????? ????????????? ???????? ? ????. ????? ????? ??????????? ???? 
?????? ?????, ?????????? ?????????? ?? ?????????? ?????: ?????????? ARK ?????? 
???? ? ???????? ??????? ????? "???????" ?? ????, ?? ??? ???? ????? ?? ??????? 
???? ????? ???????????? - ? ??? ??? ??????, ?? ????? ???????????? ????????? IP, 
?? ?????? ???????? ???? ARK.

== Translation ==
Using of USK for the implimentation of ARK has obvious downfalls. One of them 
is 
that during the rapid change of IP, for example during the change of the 
version 
of the node or during the repeated connection loss, number of ARK increases 
rapidly, and during this process there is no attempt to check if previous 
versions are still accessible; and they can "fall out" from the network, if 
almost instantaneously other nodes are restarting. As a result, as it seems, 
quite often "breaks" in the sequence of ARK appear with the length of more than 
4 versions, which is a requirement for the working of normal USK; this leads to 
the search for the "new" ARK number giving no results. This is especially 
important for the nodes working less than 24 hours a day and having a dynamic 
IP.
One solution may be a request for ARK far ahead, say a few times with the 
random 
increase of a version number from 5 to 100 related to the existing one (of 
course distributed not equally, but maybe as a reverse exponent). Or a dumb 
request for 44 rather than 4 following versions.

Another bug problem of USK/SSK is related to the algorithm of attempting repeat 
write to the existing SSK, when a specific version is provided. Node after 
finding that another programme attempts to write SSK with the already existing 
version immediately interrupts the request and notifies the programme. 
Unfortunately _ALL_ the programmes after that assume that information is 
already 
on the network, and if no new information exists do nothing. In the best (but 
not optimal) case they attempt to write the same information to the new version 
of SSK. Correct behaviour of the programmes would be to ask the node for the 
existing version of SSK in full and check the completeness and correctness of 
the received, to exclude the existence of the unreadable SSK. In case of an 
problem with the fetch of the data the need for the reinsert becomes clear. 
Unfortunately even if one knows ahead of the time that the data has not 
changed, 
programmes are forced to write a new version of SSK, or the node will once 
again 
interrupt the request.
One optional solution may be the node allowing the rewrite of the current 
version of SSK until it finishes successfully and only after letting the 
programme know that the write has been successful as a rewrite of the data. Or 
beginning of the new request when programme asks the node how to behave if the 
version already exists: repeat write (as the first solution), check the match 
(the node, not the programme, asks for the current version and compares)or only 
check the fetchability of the existing version of SSK (attempt to read SSK in 
the full but without providing the data or writing it anywhere) - only check 
the 
existence (or at least that there are enough blocks for full reconstruction).
This is important also for the working of ARK, as often restart of the node is 
not a reason to reinsert the ARK version, but it is important that the existing 
version is still in the network. Otherwise even neighbours working constantly 
on 
the constant address: unchanged ARK of such a node can "fall off" the network, 
but the node itself will not notice that even after the restart; but the 
neighbours during the restart after changing IP will be unable to get that ARK.

== End ==

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