ipwheel IPWHEEL finds where our illustrious file is to go. It scans queue 2go for incoming files. For each new file, it reads in the FIP header (if there is one) and checks for the destination (DU)- which may be multiple DUs. For each DU, the USERS file is scanned for other information - DP, DQ, DC etc. If there is no valid entry for the DU in USERS, the file is woops'ed to the Intercept queue. Syntax of the USERS file is : ; comment (destination)= (tab) (fip-hdr1):(data1) (tab) (hdr2):(data2) ... (EOL) where destination is the DU field fip-hdr is the header field or flag data is the optional data for that field/flag For example ; USERS file racing= DP:edsys3 DQ:racing-spo DC:j11 sunrac= DP:rs6000 DQ:save_racing DC:ibm indrac= DP:adobesvr DQ:Racing.Desk DC:indesign If the file is a binary file (FBIN) or the source and destination chrsets are the same (hdr field SC = DC), then the file is linked directly to the output queue for that destination. Otherwise it is sent via IPXCHG with the CQ field filled with the queue of the next stage. IPWHEEL also checks for redundancy. If it is running on the primary Unixbox for that service, it processes the first file and junks the rest. If it running on the secondary, the file is not processed unless the primary system is down. The fun bit (?) is where you want to override Source Redundancy with Destination Redundancy! Confused ? So am I and I wrote it. If a file has an SZ field (usually added by IPROUTE from the incoming Wire routing file), normally the 1st system specified is the Primary and the Second is the secondary. BUT you may want to serve one network from one UnixBox and another group of destinations from another UnixBox ad infinitum. To do so, use the DP_REDUN file in tables/sys to override the primary/secondary pair for that destination. Works a treat! Syntax is : ; for comment EdsysName (tab/spc) PrimaryUnixHostname (spcs) SecHost (eoln) where Edsysname is the SAME as the DP in USERS and should be specified WITHOUT any system number Syntax of the tables/sys/DEST_REDUN file is (remember this file is OPTIONAL) : ; for comment EdsysName (tab/spc) PrimaryUnixHostname (spcs) SecHost (eoln) where Edsysname is the SAME as the DP in USERS and should be specified WITHOUT any system number For example ; DEST_REDUN file atexedit fipA fipB ccisender fipC fipD opi1 fip99.bigpaper.co.zz fip66.bigpaper.co.zz Localhost is not a valid hostname in DEST_REDUN. Please take care to enter ALL your editorial system hosts in DEST_REDUN if it is being used. An optional parameter file may be specified using the '-E' input switch. Valid parameters are - the usual parse parameters - partial, option, repeat, sum etc - folder-size: (name of folder under spool) max: (maxsize) If a file whose size if bigger than 'maxsize' arrives for the output folder (fiphdr field DQ) specified, then it is dropped into (foldername)_big and NOT (foldername) There can be 50 such folders specified. - file-trace: (valid actions - yes/no, + hdr + in + out + (delete is ignored in ipwheel)) file-trace-name: (UniqueId in FipSeq if not default - \SU-\SN-\HR) file-trace-log: (extra File Tracing logging in FipSeq) Trace a file thru fip. Actions are 'Yes' - log, 'No' - dont; if NOT NO, then in addition to logging, we can save a copy of the FipHdr, Input file and/or Output The Hdr and files are left in /fip/log/file_trace (which should be purged in the nightly maintenance zapfiplog) These can be overridden by FipHdr fields in each file if a particular file - or service needs tracing. (notice the '_' if using in the FipHdr but '-' if parameters) eg ZFILE_TRACE: hdr ZFILE_TRACE_NAME: louislouis ZFILE_TRACE_LOG: seqno.\ZQ If the ZI hdr flag is set, a copy of the file is saved in the archive log unless either it is a redundant file or the XZ hdr flag is on signifying a resend. The name of the archive file is in two parts : 1 - A day-of-the-year number which is found either from the HS Fiphdr field or defaults to the current DOY. 2 - the contents of the SU FipHdr field (ie the Source) this will be overridden if there is an SL FipHdr. If the destination is flagged as 'delete' the file is zapped and no processing - not even archive - is done. If the destination is flagged as 'logdel' the file is zapped and no processing except archive is done. Input options (all optional) : -q or -i : queue to scan default: spool/2go -x : queue for xchg default: spool/xchg -n : queue for 2net default: spool/2net -t : scan time default: 1 sec -m : multi redundant files. For redundant incoming services, the normal arbitration is between two files. This switch is used where more than 2 are expected. default: allow the first file of every two. -h : hostname for multiple ethernets default: (hostname) Name of this Unixbox if different from the reboot name. -B : do NOT read the FipHdr-in-text for FBIN files default: do -c : make copy (link) in spool/2taste if valid file. default: no but ignore all traffic sent to 'logdel' or 'delete' Only Archived traffic that is NOT a resend is sent. the parameters can be one of the following S-saved data only (no logdel or delete) Z-deleted copy too X-all data (except logdel or delete) -C : filter traffic to spool/2taste default: no Only traffic with this filter (or nothing) in FipHdr ZWHEEL_FILTER is passed -d : check for changes to DEST_REDUN default: no the default is to read once on startup -D : pass everything - including 'logdel' and 'delete'. def:no -e : Stub of the name of the editorial system default: atex Wheel checks if the DP starts with this. eg -e mac for editorial systems called macone, mactwo etc Files are slotted into 2macone, 2mactwo etc This will override the env variable FIP_def_EDSYS. -E : name of an optional parameter file in sys default: none -F : FipHdr field for RoundRobin to be added to output file default: none (see -X input switch below) -G : WINNT/2k - grab the first file only default: no -H : log all the hosts/folders for each file default: no Use this to trace where traffic is going ! -p : BreakIn Priority For HiPriority News default: 1 Agency Bdcast traffic. -P : FipHdr Field for High-Priority News default: PR Agency Bdcast traffic -Q : only send one instance of the file to any one default: send all local queue In this case only, the full 'DU' field is copied to 'ZU'. This works for files for this Host ie DP:localhost or DP is this host name -r : For DEST_REDUN - do not resolve any hostnames in DP: SZ: or DEST_REDUN default resolve all names -R : For DEST_REDUN - do NOT use DNS to resolve names before checking DEST_REDUN. For this all the DEST_REDUN entries MUST be the true hostnames. default resolve all names -S : (size) if a file is bigger than this size and needs to be 'xchg'ed, it is sent to spool/xchg_big NOT spool/xchg default: spool/xchg -T : display timing stats for this stage -u : track DUs for uniqueness - only pass one copy of default: do NOT track a file for each destination. Use this where a file MAY be sent to the same destination (DU) but only one copy is required. -U : add UNO field as the HR FipHdr field to ALL files. For Unisys : -U 0 = 0 -> 255; -U 1 = 0 -> 127; -U 2 = 128 -> 255 For AFX Unos use -U 3 There is NO default. -U 4 is time-seqno -U 5 is time-ipaddress-seqno -U 6 is time-ipaddress-seqno with 6 digit seqno -U 7 is for timing stats (add -T to display timing stats for this stage) The Uno is ONLY added if the HR field does NOT exist. -W : 10 ths of a second - MUST wait if nothing processed default: 0 -X ; send to multiple xchg queues in round-robin order default: no -X 3 will send to xchg1, xchg2 and xchg3 (and xchg_big1 xchg_big2 etc if using -S big filter) maximum value is 29 (9 up to version 263o7) -X4 -F RR will send to 4 folders and add RR:n to the FipHdr -y : 2nd or supplementary USERS file default: none this is used in addition to the main USERS file -z : name of USERS file in tables/sys default: USERS -Z : never archive anything - ignore ZI,ZO,ZX default: archive -9 : do NOT run in Speedy mode default: no -v : version and exit How does redundancy work here ... good question.- see the web pages. Note that the editorial system name is significant. Please do not mix Fip Logical hostnames - like 'edone', 'edtwo' with proper TCP hosts ie do NOT call a space Sparc 'edthree'. (copyright) 2021 and previous years FingerPost Ltd.