"ClearCase, iApproveIt, ABS Mobile, iPhone, ClearReplica, ClearCase Multisite, ClearTrigger, ClearWeb, ClearManage, ABS, Multisite, Rational, IBM, ClearCase Multisite, CM, scm, ClearCase products, v-tree browser, configuration management" "Rational ClearCase, ClearReplica, iapproveit, blackberry, ABS, ClearTrigger, ClearWeb, CLEARCASE replication, ClearManage, Multisite, consultant, Rational, IBM, CM, scm, ClearCase CCRC, consulting, V-tree, ClearCase Browser, ClearCase Tools, configuration management" "ClearCase, IBM, ClearTrigger, ClearWeb, ClearReplica, ClearCase web client, ClearManage, ClearCase web, ABS, Rational, IBM, CM, scm, ClearCase Remote Client, consulting, ClearCase Web, ClearCase Produdts, ClearCase add-ons, configuration management"
"ClearReplica, ClearCase Multisite, ABS, Multisite, Rational, IBM, ClearCase Multisite, CM, scm, ClearCase products, v-tree browser, configuration management" "ClearReplica, CLEARCASE replication, Multisite, consultant, Rational, IBM, CM, scm, ClearCase CCRC, consulting, V-tree, ClearCase Browser, ClearCase Tools, configuration management" "ClearCase web client, ClearCase web, ABS, Rational, IBM, CM, scm, ClearCase Remote Client, consulting, ClearCase Web, ClearCase Produdts, ClearCase add-ons, configuration management"
A low-cost feature-rich alternative to ClearCase Multisite...
Affordable, flexible ClearCase "Replication" and "Deployment" options...

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ClearReplica

ClearReplica Summary

ClearReplica allows remote developers to get local speed access without the high cost of Multisite. With ClearReplica you can "replicate" not only the whole VOB, but just a portion of it if you desire. Replicate to the same region if needed (or even the same VOB). Combine or split "replicated" VOBs at the destination or receiving location. with ClearReplica relaxed mastership, you can let developers from multiple locations work on the same branch at the same time.

Some of the features added in recent ClearReplica versions are:

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Process Startup/Shutdown Triggers. The starting and stopping of ClearReplica Shipper or Receiver processes can cause user defined triggers to fire. ClearReplica administrators can send notification emails, update web pages or call any user written script or COTS software when Shipper or Receivers start or shutdown.

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User defined Scheduled-Inactivity time. ClearReplica administrators can define a time that he ClearReplica receives should hold received packets for processing to avoid resource fighting with other known site-specific processes (e.g. "nightly backups" - scheduled "vob locking", etc.). ClearReplica administrators define a start time and end time as the period where the receiver will wait to process received packets.

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Intelligent Locked VOB processing. ClearReplica receives will automatically hold packets for locked VOBs and process them once the associated VOB is unlocked.

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Controlled Replication of cleartool lock/unlock (-lbtype) commands. ClearReplica receiver directories can be configured accept or ignore cleartool lock/unlock lbtype requests from remote sites. The receiver directories can be configured to: ignore all remote lock/unlock label type requests or honor those requests.

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Controlled Replication of cleartool rmelem commands. ClearReplica receiver directories can be configured accept or ignore cleartool rmelem request from remote sites. The receiver directories can be configured to: ignore all remote rmelem requests, accept only remote rmelem -file requests, accept only rmelem -directory requests or accept all remote rmelem requests.

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Controlled Replication of cleartool rmtype (-lbtype) commands. ClearReplica receiver directories can be configured accept or ignore cleartool rmtype -kind lbtype request from remote sites. The receiver directories can be configured to: ignore all remote remove label type requests or honor those requests.

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Controlled Replication of cleartool rmelem commands. ClearReplica receiver directories can be configured accept or ignore cleartool rmelem request from remote sites. The receiver directories can be configured to: ignore all remote rmelem requests, accept only remote rmelem -file request, accept only rmelem -directory request or accept all remote rmelem request.

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Relocatable Logging Directories. By default all ClearReplica writes (other than to the VOB itself) are performed within directories underneath the m_bay directory that is located in the ClearTrigger depot directory. For organizations that wish to run ClearTrigger and ClearReplica from a read-only share, media or device, both ClearTrigger (12.5 and higher) and ClearReplica (9.2 and higher) allow for directory relocation. Directory relocation can also useful when managing disk space or improving performance. All directories written to by ClearReplica can be relocated to another directory for writing.

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Additional "Peer-to-Peer" encryption to ClearReplica. All ClearReplica data has always been encrypted using an internal ClearReplica Data Encryption key so that only ClearReplica can decrypt ClearReplica data packets (perfect for closed or otherwise private networks), but ClearReplica now has additional encryption can be enabled that requires the sender and receiver to agree on a generated encryption key known only to the Sender and Receiver, thus allowing for the secure transportation of packets across open, public or 3rd party networks or even though the use of 3rd party courier services. Even those with ClearReplica cannot decrypt the packet without the "Peer-to-Peer" encryption key.

ClearReplica Details

ClearReplica is a custom add-on to the IBM Rational Software ClearCase product. It provides geographically disjoint development as a less expensive alternative to ClearCase Multisite. ClearReplica provides many of the replication features of ClearCase Multisite as well as additional features. With ClearReplica you can replicate whole VOBs, "portions" of VOBs, a single or select files, a single or select directories or even select branches. Use ClearReplica to replicate multiple VOBs in to single VOBs, single VOBs to multiple VOBs and replicate VOBs to other VOBs within the same ClearCase region. These options allow more flexibility to create on-line backup VOBs and staging or distribution VOBs.

ClearReplica is licensed differently than ClearCase Multisite in that ClearReplica License pricing is not a factor of how many VOBs are replicated or the number of users of those VOBs. ClearReplica is licensed per location, therefore the cost is the same to replicate one VOB with one user from Atlanta to India as it does to replicate 100 VOBs with 300 users from Atlanta to India. Sites can in many instances replace hundreds of Multisite licenses with one or two ClearReplica Licenses. You simply need one license at each site if development is performed at both sites, or a single license at one site if the off-site location is just for backups or disaster recovery. This relaxed licensing results in huge upfront cost savings over traditional Multisite.

ClearReplica requires that ClearTrigger 10.3 or higher is installed at the sending and receiving site; again an unlicensed version of ClearReplica will suffice at the receiving site if no development is performed on the receiving VOB there.

Some restrictions that exist in ClearCase Multisite are relaxed in ClearReplica. For instance, developers can work on the "same" branch at both locations for there is no Multisite mastership restriction. Geographically disjoint development teams can still work on separate branches and this is still the recommended method.

Use ClearReplica for geographically distributed development teams or use it to provide a hot backup to recover lost versions in a fraction of the time. Use ClearReplica to automatically distribute code or binaries located in a directory in a VOB without having to use the bandwidth of replicating the whole VOB. Replicate portions of the VOB to teams all over the world or across the hall. Simply install and configure ClearReplica on top of a ClearTrigger installation and get started!

ClearReplica advantages over traditional Multisite:

Cost and licensing - cost of entry
Parallel and distributed shippers and receivers
Extended Transport Mechanisms
Extended "Deployment" capabilities to ClearCase
Automatic Error Notification
Nearly free "disaster recovery", "backup sites" or "distribution hubs"
Enhanced Replication Flexibility
Confirmation of packet delivery (automatic packet recovery)
Relaxed Mastership
Relaxed Replica Management
Automatic data encryption
Additional "peer-to-peer" data encryption
Works with ClearCase Lite
Enhanced "Replication Triggers" allow further automation and notification to your "replication" or "deployment" process
Enhanced "Replication" and "Deployment" capabilities to disconnected machines or those without a static IP address


ClearReplica Documentation

All documentation, tutorials, and tools for ClearTrigger are located here.

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ClearReplica
ClearReplica Software License Agreement... ClearReplica Highlights... Read a summary on ClearReplica Documentation for ClearReplica See how ClearReplica compares to ClearCase Multisite...

ClearReplica defect/patch status and details are here.

ClearReplica Defect Status List

The status of any reported ClearReplica defects will be reported here.

All current ClearReplica binaries are at version and were last updated on .

- clearreplica_shipper
- clearreplica_receiver
- clearreplica_proxy
- clearreplica_shipout
- clearreplica_shiptest
- clearreplica_hostentry
- clearreplica_crypt_key_gen

Only defects of the current and previous major releases are listed; no defect is listed that is earlier than the last mandatory patch. All defects from previous releases were rolled into the current major release and are no longer listed.

Releases 9.4.1 and higher are supported..

Defect Number Defect Description Release Found Release Fixed
cr9_5_1
(Problem): ClearReplica in rare instances would skip the replication of a file version at remote location.

The only happened when the version has a multi-line comment had a line after the first line that began with the string "OnBranch ", "DirName " or "VersionId ".


(Fix:) Changes made to properly handle versions with multiline comments that have comment lines that begin in this fashion.
9.5 9.5.1
cr9_4_1
(Mandatory)
(Problem): ClearReplica logging files for additinal classes were not properly named with their appropiate class number.

Shipping Logging files for class 0-9 were named "shipper_all_.txt" when they should have been named "shipper_all_0.txt" .. "shipper_all_9.txt"


(Fix:) Shipping Logging files for class 0-9 are now properly named "shipper_all_0.txt" .. "shipper_all_9.txt"
9.4 9.4.1