Re: planner timeouts and udp packet size
Jon LaBadie wrote: On Tue, Dec 06, 2005 at 12:06:19PM -0500, Jean-Francois Malouin wrote: I've got this amanda client (server and client at v2.4.5) with a 1.5TB raid splitted/chunked in ~70 DLEs (using gtar) and some of them don't make it to tape as the planner timeouts. Now, would someone be kind enough to jolt my memory as to what is the relationship between UDP packet size and the number/size of DLEs entries along with their ... From a Dec. 2004 reply by Paul Bijenes: Wow, you surely have a large mail archive. I didn't have that message anymore. The last updated (5 minutes ago) explanatin is found here: http://wiki.zmanda.com/index.php/Why_does_%27amdump%27_report_%60results_missing%27%3F#UDP_packet_too_large.3F or shorter: http://tinyurl.com/ca7pv -- Paul Bijnens, XplanationTel +32 16 397.511 Technologielaan 21 bus 2, B-3001 Leuven, BELGIUMFax +32 16 397.512 http://www.xplanation.com/ email: [EMAIL PROTECTED] *** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, * * F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, * * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort, hangup, * * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown, * * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... * * ... Are you sure? ... YES ... Phew ... I'm out * ***
Re: planner timeouts and udp packet size
* Paul Bijnens [EMAIL PROTECTED] [20051207 07:41]: Jon LaBadie wrote: On Tue, Dec 06, 2005 at 12:06:19PM -0500, Jean-Francois Malouin wrote: I've got this amanda client (server and client at v2.4.5) with a 1.5TB raid splitted/chunked in ~70 DLEs (using gtar) and some of them don't make it to tape as the planner timeouts. Now, would someone be kind enough to jolt my memory as to what is the relationship between UDP packet size and the number/size of DLEs entries along with their ... From a Dec. 2004 reply by Paul Bijenes: Wow, you surely have a large mail archive. I didn't have that message anymore. The last updated (5 minutes ago) explanatin is found here: http://wiki.zmanda.com/index.php/Why_does_%27amdump%27_report_%60results_missing%27%3F#UDP_packet_too_large.3F or shorter: http://tinyurl.com/ca7pv Thank you all for the help. I found that the udp reply packet is short of 37 bytes from 32Kb taking into account the IP and UPD encapsulation and I can't seem to find what the max size of udp packet on irix6.5 -- anyone knows? All I can gather from systune (kernel tunable utilities on irix) is udp_sendspace = 61440 (0xf000) 60Kb Anyways, I modified the dumptypes to use exclude list on the client and now I'm below the udp request from last night is ~27Kb and I see no timeouts but my exclude fails :( Ah, well... I'll post another question when I'm sure that I haven't made (yet) another stupid mistake... regards, jf -- Paul Bijnens, XplanationTel +32 16 397.511 Technologielaan 21 bus 2, B-3001 Leuven, BELGIUMFax +32 16 397.512 http://www.xplanation.com/ email: [EMAIL PROTECTED] *** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, * * F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, * * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort, hangup, * * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown, * * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... * * ... Are you sure? ... YES ... Phew ... I'm out * *** -- °
Re: planner timeouts and udp packet size
Replying to myself, * Jean-Francois Malouin [EMAIL PROTECTED] [20051207 16:03]: * Paul Bijnens [EMAIL PROTECTED] [20051207 07:41]: Jon LaBadie wrote: On Tue, Dec 06, 2005 at 12:06:19PM -0500, Jean-Francois Malouin wrote: I've got this amanda client (server and client at v2.4.5) with a 1.5TB raid splitted/chunked in ~70 DLEs (using gtar) and some of them don't make it to tape as the planner timeouts. Now, would someone be kind enough to jolt my memory as to what is the relationship between UDP packet size and the number/size of DLEs entries along with their ... From a Dec. 2004 reply by Paul Bijenes: Wow, you surely have a large mail archive. I didn't have that message anymore. The last updated (5 minutes ago) explanatin is found here: http://wiki.zmanda.com/index.php/Why_does_%27amdump%27_report_%60results_missing%27%3F#UDP_packet_too_large.3F or shorter: http://tinyurl.com/ca7pv Thank you all for the help. I found that the udp reply packet is short of 37 bytes from 32Kb taking into account the IP and UPD encapsulation and I can't seem to find what the max size of udp packet on irix6.5 -- anyone knows? All I can gather from systune (kernel tunable utilities on irix) is udp_sendspace = 61440 (0xf000) 60Kb Anyways, I modified the dumptypes to use exclude list on the client and now I'm below the udp request from last night is ~27Kb and I see no timeouts but my exclude fails :( Ah, well... I'll post another question when I'm sure that I haven't made (yet) another stupid mistake... stupid it was indeed: I had an extra white space in front of every exclude pattern... jf regards, jf -- Paul Bijnens, XplanationTel +32 16 397.511 Technologielaan 21 bus 2, B-3001 Leuven, BELGIUMFax +32 16 397.512 http://www.xplanation.com/ email: [EMAIL PROTECTED] *** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, * * F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, * * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort, hangup, * * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown, * * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... * * ... Are you sure? ... YES ... Phew ... I'm out * ***
planner timeouts and udp packet size
Hi, I've got this amanda client (server and client at v2.4.5) with a 1.5TB raid splitted/chunked in ~70 DLEs (using gtar) and some of them don't make it to tape as the planner timeouts. Now, would someone be kind enough to jolt my memory as to what is the relationship between UDP packet size and the number/size of DLEs entries along with their exclude list? The FAQ mentions something about this (UDP packet size of 64Kb and results missing) but that might not be quite up to date. This raid partition has been splitted using quite a few 'exclude append ./blah' in the disklist and I wonder if it would be better to have them in a file on the client side rather than explicitely in the disklist file per se. Would that make any difference at all regarding what get stuffed in the UDP packets at the estimate phase -- making them smaller -- so that I wouldn't hit that hard limit? I hope this makes sense :) TIA, jf
Re: planner timeouts and udp packet size
On Tue, Dec 06, 2005 at 12:06:19PM -0500, Jean-Francois Malouin wrote: Hi, I've got this amanda client (server and client at v2.4.5) with a 1.5TB raid splitted/chunked in ~70 DLEs (using gtar) and some of them don't make it to tape as the planner timeouts. Now, would someone be kind enough to jolt my memory as to what is the relationship between UDP packet size and the number/size of DLEs entries along with their exclude list? The FAQ mentions something about this (UDP packet size of 64Kb and results missing) but that might not be quite up to date. This raid partition has been splitted using quite a few 'exclude append ./blah' in the disklist and I wonder if it would be better to have them in a file on the client side rather than explicitely in the disklist file per se. Would that make any difference at all regarding what get stuffed in the UDP packets at the estimate phase -- making them smaller -- so that I wouldn't hit that hard limit? From a Dec. 2004 reply by Paul Bijenes: || || The problem seems to be in the reply packet. || || I've already seen problems with a UDP-packet overflow, but that's || unlikely. That problem happened with older versions where the UDP || size was only 8Kbyte or so. Currently it is 64K, but it could be || limited by the OS too, of course. The reply packet is usually larger || than the request packet, because it contains 1 to 3 lines for each || DLE (level 0, current level, current plus 1). || -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road(609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
