2. PACS Server Components

7/23/2019 2. PACS Server Components

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PACS Server

Components


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Core

ComponentsKnowing what each process is responsible

for can help you track down the source ofa problem and know how to tell thesystem is functioning properly.

AMCAS Application

S

!"#


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PACS $elated

ServicesServices installed on the PACS serverthat make PACS work%

Amicas Server Service

Amicas Messaging Service

Amicas &eb Service

S

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AmicasService.prope

rties'install drive(%)amicas#)con*gControls runtime parameters for Amicas Server

Service%

StorageServer

Auto$outer+orwarder

mporter

Scheduler

mageManager

,istener

&orklistManager

Stats,ogger

-C!$ Manager


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StorageServer

$eceives !CM images from modalities and other !CM devicesthrough !CM transfer protocol

Con*gured in storageserver.ini/ storageserver.schema/A-titletohost.map/ and various other *les within amicas#)con*gdirectory.

0andles all !CM 1uery 2 $etrieve re3uests

Allows up to #4 concurrent !CM associations by default5con*gurable6. Stores images in the insert*le3ueue 5telmed 2 annotations6 &rites !CM to disk Populates import 3ueue when an image is stored to disk and the

database Creates records in dicomstudies/ dicomseries/ dicomimages/

dicomimages# when images are received. -nsures !CM header information is consistent before allowing the

importer to process the image 57ailing6. Provides Modality &orklist 5M&,6 to devices re3uesting a list of orders

MWL can be confgured globally or per requesting AE title

$uns under Amicas Server Service on Production server.

Con*gs discussed in other sections.


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Auto$outer Checks all incoming !CM and determines if it needs to route

somewhere via +orwarder.-very mage 2 Study will go through the autorouting 3ueue at some point

1uali*es !CM for auto routing based on auto routing rulescon*gured in )amicas#)con*g)autorouter.rul

Properties con*gured in amicas#)storageserver.ini 5Autorouter

pro*le6 $uns under Amicas Server Service

+orwarder +orwards images using !CM transfer to remote !CM devices

Properties de*ned in amicas#)con*g)storageserver.ini 1ueue populated by autorouter 5if the images match a rule6 or

send studies tool.

!estinations must be added to amicas#)con*g)aetitletohost.map

$uns under Amicas Server Service.


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,istener

Process that listens for !CM 12$ re3uests from the 0aloviewer

&orks in con7unction with StorageServer to facilitate !CM12$ from a remote !CM device.

!evice must be con*gured in !CM !evices section andamicas#)con*g)A-8itleto0ost.map

$uns under Amicas Server Service


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mporter

mport 3ueue is populated by StorageServer after the !CMhas been stored.

Compresses images into ,ossless and ,ossy versions of theoriginal !CM images.

Creates records in amicasstudy/ amicasseries/ amicasimage/

and amicaspatient tables 59Compressed: tables6 nce studies are completed mporting/ Auditor will close them

and they will be marked unveri*ed 5; 2 v =.? code branch


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mporter Con*gs

AmicasServer.properties

Property A@ect !efaultCom.amicas.server.importer.&$K,S8MABA-$MA-MP$8-!B8+CA

8B+$-1;-BCD

0ow often to tell worklistmanager a new study isimported

?E 5images6

Amicas.importer.nSecsStudy8imeout 0ow long to wait idlebefore timing out study

?#E 5s6

Amicas.importer.nmage$ate 0ow many images toprocess at a time from the3ueue

4E

Amicas.importer.MaFAllowed+ailure 0ow many images can failin a row before importerrestarts

4

Amicas.importer.nCompression8hreads 0ow many compressionthreads to usesimultaneously

4


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Command Scheduler Processes 7obs in the command 3ueue/ and telmed 3ueues. Periodic vs -Fplicit

Periodic G periodic maintenance commands de*ned inAMCASServer.properties

-Fplicit G 1ueued to run onceH.ASAP

Performs many of the behind the scenes tasks in PACS such as%

P!- 2 0,I updates 5P!- generated by mageManager6


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SchedulerCon*gs

AmicasServer.properties

Property A@ect !efaultAmicas.PeriodicCommand 8ells scheduler which

commands to run onperodic basis.

Check$esources/PeriodicCleanupdb/system monitor/ etc

Amicas.pde.Modify!atabase"utBot+iles

P!- will B,D update thedatabase and B8 *les attime of P!- 5performancegainJ6.

8rue 5 newinstalls6

Amicas.PeriodicCommand.PeriodicCleanup!"

0ow many days worth oforders 2 logs to keep/ how

often to run thecommand.

? day 2 I#E hours 5Edays6

Amicas.PerodicCommand.AnetCommunicator-ntries

0ow often to send data to&atch/ and how largeeach batch will be5remote6

4 minute

MaF $ows 54E6

Amicas.Study


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&orklist Manager

Process responsible for distributing/ updating and managing$8&, messaging between the PACS server and end user$8&,.

Properties de*ned in

amicas#)con*g)worklistmanager.properties $uns under AMCAS Server service. ;ses a 7ava LM, temporary database 5hypersonic6 which is

rebuilt each time the process starts nitialies 9hypersonic: database by selecting

orders2studies from the M !"# database based on the

worklist universe settings &orklist ;niverse by default contains all orders2studies fromprevious ?= days and ?E days in the future

NN$ecommended &orklist universe sie is ' #EK orders.


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&orklist Manager

Con*gs&orklistManager.propertiesProperty -@ect !efaultcom.amicas.worklist.manager.8$AC-

+,ASControls level oftracing

++

com.amicas.worklist.manager.&$K,S8;B


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mageManage

rProcess responsible for receiving allnbound 0,I messages rder 2 Change rder 5$M B-2L6 $eports 5$; +2P6 !emographic updates 5A!8 AE6 Patient Merge 5A!8 A>6

mageManager will ignore all other messages

Checks for matching studies 5study to order matching61ueues 0,I update 2 P!- in command 3ueue for change orders

and A!8 messageChange orders are particularly eFpensiveCheck for original order$emove original order$ecreate new orderCheck for matching study1ueue P!-

,istens on port ?EE? by default

Con*g *les G imagemanager.props 2 amicasserver.props


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mageManager

Con*gs+ile 2 Parameter A@ect !efaultAmicasServer.properties 2com.amicas.util.status.verwrite+utureStatus

8ells system whether to allowstatus updates to gobackwards in workQow 50,I6

B

magemanager.props 2

Amicas.imgr.server.Server.port

&hich port to listen for 0,I ?EE?

magemanager.props 2com.amicas.imgr.QeFirad.messageProcessor.rderProcessor.!oBot1ueue


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Archive Server

Archiver $uns on separate Archive Server under the Amicas Service Connects to Prod server M database through remotely cataloged

node. 1ual*es for archival based on Archive properties

Oips !CM from PACS server and stores on a managed volume/and eventually to long term storage

Currently supports 0SM/ 8SM or Centera storage -CM support available in =.?

$etrieves studies from archive/ and CS8$-S back into PACSserver.

$etrieval re3uests generated by archive tool or 1C tool Monitor displays studies that have 3uali*ed for archival andcurrent archival2retrieval 7obs

Properties de*ned in amicasserver.properties andarchiver.properties

Processes studies in the archive 3ueue


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Archive

Con*gsAmicasServer.propertiesParameter A@ect !efaultAmicas.Archive Archiver Master switch. ++

Amicas.Archive.0ost 0ostname 2 P address of the

archive server

'blank(

Archive.gnore8elemed

8ells archiver whether or notto archive studies received viatelmed.

+alse

Archive.Concurrent8asks

0ow many threads archiverwill use for archival 2 retrieval

combined

4

Archive.-FcludeA-8itles

Studies from thesestoringaetitles will B8 bearchived.

'blank(


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Auditor

Monitors studies importing and marks 9closed: when all images have completed.

Populates mport log to keep stats on each study imported 5study volumereport6.

Populates other internal database logging tables for use with 9,ogs:

nforms the user if a study has 7ailed due to inconsistent !CM header data.

$uns as part of the AMCAS Messaging Service

-C!$Manager

Sends studies via !CM transfer to third party $obotic C! burner 5Sorna6. ptional component to PACS.

C! burning 7obs can be 3ueued manually or automatically by rule 3uali*cation.

Monitor page displays progress of current 7obs.

C! writers con*gured in management page.

$uns under the Amicas Server Service


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Amicas &eb

Process responsible for facilitating web access to PACSthrough 0alo/ management pages/ etc.

Provides a cookie to authenticated users

0andles the distribution of nonRimagedata via http. &orks in con7unction with S/ which serves the images.

;ses SAP *lter to redirect ava re3uests to the 8omcatServlet/ which is used with $8&,.

$esponsible for handling internal application security.

Authenticators de*ned in amicas#)con*g)websecurity.Fml


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boss 2 MS ProFy

Application server that relays $8&, and event loggingmessages among various PACS components.

Serves messages between 7ava database/ PACS processesand $8&, users to comprise the $8&, messaging system.

-ach PACS Process has a 9topic: it listens on within boss tohandle message processing.

boss also embedded within 8omcat to serve &eb Pages.

"y default uses ports EE and TEET.

Also uses port ?EEET for $each.

MS ProFy relays messages from CUU processes to boss.

StorageServer/ Autorouter/ +orwarder use to communicate withboss server.

"oth processes run under Amicas Messaging Service.


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AMCAS &atch

nstalled by default with PACS

$eceives data from one or multiple servers nserted into AB-8!"

Computes averages/ totals/ and other aggregate data

$esponsible for all actions within AMCAS&atch

-mailVs alerts based on con*guredthresholds.


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S &eb Server used to deliver images to 0alo

workstations.

ther services &&& G( makes images available over internet

SM8P G( Could be used as mail server for remotenoti*cations

+8P G( ;sed for 8elmed in pre 4.E M$= versions.

&indows #k R v= 2 &indows #k G v

;ses akarta.SAP *lter to redirect ava re3uests tothe 8omcat Servlet

SS, G Secure sockets layerCerti*cates must also be imported into 8omcat for usewith $8&,.


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!"#

!atabase engine used with PACS

databases M !" G mage pointers/ orders/ reports/ patient

demographic data/ etc

AB-8!" G 0ouses all &atch data and computesstatistics based on throughput.

P$-+!" G Contains all system preferences/ dicomdevices/ amicas servers/ transfer rules/ etc.

8ablespaces +ile structure on disk that contain database

information

System Managed 5SMS6 vs !atabase Managed 5!MS6M ;serspace? 5!MS6 can be monitored with &A8C0


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Key !irectories

Con*guration !irectory 'install drive(%)amicas#)con*g

AMCAS !ata !irectory 'data drive(%)amicas#data)

Contains all PACS server component logs nbound 8elmed directory ailed mages !atabase backups 5typically6

!"# directories nstallation *les 2 diaglogR( 'install drive(%)s3llib !atabase tablespaces

'db drive(%)AMCAS!A8A"AS- 5M !"6 'db drive(%)!"# 5AB-8!" 2 P$-+!"6 !"# list db directory !"# list tablespaces show detail

!"# list tablespace containers for 'tbspcid(


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$ecap

HApplication G AMCAS/ &eb/ Messaging/

&atch

S G &&&/ SM8P/ +8P

!"# G !atabase management system


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2. PACS Server Components