No replication occurs in this state. In case of an error, check for the network connectivity between Verify database replication is broken, Step 2. This section describes scenarios in which database replication Inside each of those files you should see the define end with [64] which means it ended successfully. If no, contact Cisco TAC. 4. status from all the nodes and ensure they are authenticatedStep 6. Servers here should have the correct hostname and node id (populated from the process node table). If only the Rhosts files are mismatched, run the commands from the CLI: Generate a new report and check if the Rhost files are equivalent on all the servers. This command can be run on each server to verify forward and reverse DNS under the validate network portion of the command (will report failed dns if error). 06-08-2014 Refer to the links to change/recover the security passwords: CUCM Operating System Administrator Password Recovery. To confirm that replication is setting up in a single batch, run utils dbreplication stop all followed by utils dbreplication reset all from the CUCM publisher, and then verify the sequence of logs using file list activelog cm/trace/dbl/* date detailed from the publisher CLI. this image. You can follow all the T-shooting links provided by Manish and I. It is necessary to check other replication requirements before taking any action in solving the replication problem. On the right hand side of the screen, the replication status will be shown. Database replication commands must be run from the publisher. Once the above step is completed, execute the utils dbreplication stop command on the publisher. the nodes. Thanks for the quick response. that the following outputs and thereports are provided: The Cisco Unified Reporting CM Database Report (Refer to Step The nodes are scattered over the Wide Area Network (WAN): Ensure that the nodes have network connectivity well under 80 ms. After you complete Step 4, if there are no issues reported, run 1: This lets you know the last action performed and the time of the action. If the broadcast sync is not updated with a recent date, run theutils dbreplication status command to check all the tables and the replication. The utils diagnose test command checks all the components and Try to sync the local servers first. If you recieve Cannot send TCP/UDP packets as an error My go-to when troubleshooting database replication. Thus the recommendation to the customer would be to follow the most basic process that fixes about 50 percent of replication cases. This cdr list serv is the command that would be used under root access by Cisco TAC to check the current list of replication connections. Understanding the output of utils dbreplication runtimestate for CUCM. nodes are not able to join the replicationprocess, increase the It runs a repair process on all tables in the . The publisher and each subscriber connect logically to every server in the cluster and each server can update all servers (including the publisher) on user facing features such as call forward all. This error is caused when the reverse DNS lookup fails on a their defined messages. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. In RTMT, Choose CallManager->Service->Database Summary. If the intra-cluster communication is broken, database replication issues occur. We now do some other checks to prepare to fix replication. DBver& REPL. Refer to Step 5. The show network cluster command checksfor If no, contact Cisco TAC. No replication occurs in this state. 5. Run the utils dbreplication runtimestate command to check the subscriber), utils dbreplication reset (Only on the publisher ). TAC engineer on a replication issue case referred me to this link as a helpful education resource. Cluster : Server 1-5 * 1 min = 5 min, + 6-10 * 2 min = 10 min, If yes, go to Step 8. The server no longer has an active logical connection to receive database table across. Repair all/selective tables for database replication, Step 8. Verify database replication is brokenStep 2. An excellent and comprehensive DB replication guide! The nodes are scattered over the Wide Area Network (WAN): Ensure Processnode table must list all nodes in the cluster. Cisco Database CLI Output Cisco Database Installation Service Cisco Database Layer Monitor Cisco Database Library Trace Cisco Database Notification Service Cisco Database Replicator Server, Cisco Informix Database Service Event Viewer-Application Log Event Viewer-System LogYou can also take a look in the ccm.log files on the different servers via the CLI:"file search activelog cm/log/informix/ccm.log error""file search activelog cm/log/informix/ccm.log fail". For IM and Presence Service , enter the command on the database publisher node if you have more than one node in your deployment. The utils create report database command from CLI. In the output, ensure that the Cluster Replication State does not contain the old sync information. versions 6.x and 7.x; in version5.x, it indicates that the setup is Step 7. scratch. The most important components for database replication functionality are validate_network, ntp_reachability,and ntp_stratum. Once it is generated, download and save the report so that it Also make sure that your user's have the last name field filled in . the utils diagnose test commandStep 5. If there are any errors in the components, the errors will be Cisco Database Replicator (CDR) list of servers is in no way related to Call Detail Records (also known as CDR). How to check if an Analog Phone is connected to a VG224 Port? Replication timeout is the time that CUCM publisher waits for the subscriber server defines to complete before it will start a define. As illustrated in the figure below, only the publisher's database is writable while each subscriber contains a read only database. This should occur within a few minutes of the reset. This mismatched data is found by issuing a. Check the connectivity This issue can occur because the other servers are unsure whether there is an update to the User Facing Feature (UFF) that has not been passed from the subscriber to the other device in the cluster. Network Time Protocol (NTP) Reachability: The NTP is responsible for keeping the server's time in sync The TCP and UDP Port Usage documents describe which ports need to be opened on the network. states of the Real Time Monitoring Tool (RTMT) for the replication. If the RTT is unusally Network Time Protocol (NTP) Reachability: The NTP is responsible to keep the server's time in sync with the reference clock. We verify in the report that all of the hosts files look correct. This document discusses the basics needed to effectively troubleshoot and resolve replication issues. "REPL. There can be many problems that basically represent the unexpected behavior of CUCM. Connecting i. Queue: Blank ii. database replication issues when theservers are defined using the Logical connections have been established but we are unsure if tables match. Replication is in the process of setting up. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. flagged as anerror. If any errors/mismatches are discovered, theyare shown than 5 or else it will deem it unreliable. utils dbreplication stop on all subscribers. In case of an unsuccessful connection, go to Step 8. In a cluster where no nodes have been reinstalled, the publisher would be g_2, the next node installed would be g_3, and so on and so fourth.11: This shows the RTMT states for database replication. After few minutes, use the command "utils dbreplication runtimestate" to check the replication status. This error is caused when one or more nodes in the cluster have a network connectivity problem. On the Publisher and Subscriber, enter the utils dbreplication runtimestate command. 09:32 AM. In case of an error, check for the network connectivity between the nodes. Server Servers >10 = 3 Minutes PerServer. This state indicates that replication is in the process of trying to setup. This document will explain a little about the output to assist people in their learning and in their troubleshooting efforts. This section describes scenarios in which database replication is broken, and provides the, troubleshoot methodology that a TAC engineer follows in order to diagnose and isolate the, In order to determine whether your database replication is broken, you must know the various. This is important to keep in mind if an upgrade has taken place from 5.x or earlier as additional routes may need to be added and additional ports may need to be opened to allow communication between subs in the cluster. If no, contact Collect the CM database status from the Cisco Unified Reporting page on the CUCM, Step 3. Review the Unified CM Database Report any component flagged as an error, Step 4. Consult Cisco TAC before you proceed with Step 7 and 8 in case of nodes greater than 8. It is essential that the NTP stratum (Number of hops to the From the CLI of subscriberB I would then confirm that the following services are started using the command. If the RPC hello does not work for a particular node: - Ensure the network connectivity between the particular node Logical connections have been established and tables match the other servers on the cluster. order to avoid any databasereplication issues. These cookies will be stored in your browser only with your consent. In 5.x it is necessary to check the connectivity between each subscriber node and the publisher node. Reporting pageon the CUCM. How many servers do you have in the cluster ? flagged as an errorStep 4. I never saw it be listed differently than the active system version listed in the show version active output.6: This is the replication timeout that is discussed here: https://supportforums.cisco.com/document/52421/troubleshooting-cucm-database-replication-linux-appliance-model#Replication_Timeout_Design_Estimation. A define log for each server should be listed once above the cdr_Broadcast log. Replication Setup (RTMT) and detailsas shown in the first output. Proceed to Step 8, if the status does not change. If you are unfamiliar with getting logs from RTMT, the video below should help a little (even though it is for collecting log types that are different than what is mentioned above). Collect the CM database status from the Cisco Unified Reporting page on the CUCM, Step 3. Review the Unified CM Database Report any component flagged as an error, Step 4. Refer to this link in order to change IP address to the Hostname for the CUCM. Once that command is COMPLETED, outputs can be verified and it shows the current database status. As shown in this image, the Unified CM Hosts, the Rhosts and the Sqlhosts are equivalent on all the nodes. Click on Open Enter the OS Administrator Username and Password once prompted Enter " utils dbreplication runtimestate " and hit Enter > Please refer to the below screenshot. Refer to the sequence to reset the database replication and start the process from scratch. Check the same and use the Timestamp. It's simply fantastic, and I really appreciate all the individuals' time and effort that went into its creation. The report will display 'replication server list' and will show 'cdr list serv'. Cisco DB command to startthe service. In case you reach the Cisco TAC for further assistance, ensure Thanks a lot for this easy-to-understand and highly useful guide!! Each server will maintain its own queue of changes made on the local server to send to other servers in the replication network. 3. option from the Navigationdrop-down list in the Cisco Unified This should show corresponding defines for each subscriber in the cluster. (3) Execute the utils dbreplication runtimestate command on the Publisher and Subscriber. Navigate to System Reports and click Unified CM Database Status as shown in this image. Complete these steps in order to check NTP status: 2. We now do some other checks to prepare to fix replication. 2023 Cisco and/or its affiliates. particular node: utils dbreplication stop (Only on the publisher), utils dbreplcation dropadmindb (Only on the affected The Cisco Unified Reporting CM Database Report (Refer to Step 2). (2) Execute the utils dbreplication stop command on the Publisher. Starting in CUCM 10.0(1), repltimeout is slightly less important because the Publisher will now queue define requests instead of waiting for the retry timer. DBver& REPL. As shown in this image, the Unified UC Collabing 2023. IM and interface (touchtone conversation) PIN feature and allows you to update the Applies to: Unified . equivalent on all the servers. The validate_network Set up is still in progress. Reset the database replication from the scratch. This file is generated each time you execute utils dbreplication status. To verify the database replication, run the utils dbreplication runtimestate command from theCLI of the publisher node, as shown in this image. To monitor the process, run the RTMT/utils dbreplication runtimestate command. Complete these steps in order to check NTP status: Use the utils diagnose test command to check the output, as status again. stateother than 2, continue to troubleshoot. It is essential that the NTP stratum (Number of hops to the parent reference clock) must be less than 5 or else it is deemed unreliable. The logical connections discussed above are the connections seen in the Topology Diagram in the begining of this document. Failure to complete the necessary problem assessment prior to attempting any solution could result in hours of wasted time and energy. Lets begin by documenting the places that you could check to see the replication state. You must check the status for every node. I have a customer with cluster of cucm 11.5.1su2 and a a unity connection 11.5.2su2 , in the cucm everything is fine but in the unity if u type the command. All rights reserved. Check the individual components using New here? New here? Rebuild of the server is suggested when system suffered an ungraceful shutdown and it is documented in defect CSCth53322. with connectivity, an error is often displayed on the DomainName This could indicate a corrupt syscdr. and after that the replication start to work fine , i want to thanks you for the hep that u gave to me, You can check the following troubleshooting doc, https://www.cisco.com/c/en/us/support/docs/unified-communications/unity-connection/116942-technote-uc-00.html. Once an accurate replication status is displayed, check the table across the network. This is an important step. Ensure Replication Server List (cdr list serv) is populated for 1: This lets you know the last action performed and the time of the action. In order to verify database status in CUCM, access from Command Line Interface (CLI) must be granded in each of the nodes in the cluster. Repair all/selective the tables for Normally run on a subscriber. . the Sqlhosts files are mismatched, run the command from, http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/install/10_0_1/ipchange/CUCM_BK_C3782AAB_00_change-ipaddress-hostname-100/CUCM_BK_C3782AAB_00_change-ipaddress-hostname-100_chapter_011.html, Generate a new report and check if the Sqlhost files are From theUnified CM Database Status Report, Connectivity must be displayed as 1=Success to each node as shown in the image. That has slowed me down fixing some DB replication issues. To verify the database replication, run the utils dbreplication runtimestate command from theCLI of the publisher node, as shown in this image. This is not an exhaustive list. "DBver& TABLES": This lets you know if the pub and subs are the same versioniv. For database replication, connectivity between servers must be established properly in each of the nodes involved in the cluster. (*) The command execution example is the same as in (1). Repair all/selective the tables for database The amount of time this command takes to return is based on your cluster's repltimeout. . Model, Step 2. Ensure that the Database Layer Remote Procedural Call (DBL RPC) hello is successful, as shown in this image. Does it check periodically for changes or only reacts when there is a change made to one of the nodes? If only the Sqlhosts files are mismatched, run the command from the CLI: Generate a new report and check if the Sqlhost files are equivalent on all the servers. Note: When you change this parameter, it improves the replication setup performance, but consumes additional system resources. i have try also to reboot all the servers but still get the same results . You could probably pull the following and see if you find anything. is broken, and provides thetroubleshoot methodology that a TAC Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! Informix uses DNS very frequently and any failure/improper config in DNS can cause issues for replication. one server is down in the cluster. Error, Intra-cluster communication is broken, as shown in network. The Steps 7 and 8 must be performed after the checklist is This document describes the details in order to verify the current status of Cisco Unified Communications Manager (CUCM) database replication; and the expected outputs for each of the parameters. If there are errors or mismatches found, run the file view command to identify any suspect tables if that is the cause of the errors/mismatches.5: This is the database version. nodes in the cluster. This command only triggers the check of the dabatase status. The output from CUCM version 10.5.2 NOTE: THESE COMMANDS SHOULD BE RUN FROM THE PUBLISHER The explanation Thank you to each and everyone for the nominations and your support. case of nodes greater than 8. i have double check the network and DNS and all the servers are fine and active . After you run the command, all the tables are checked for You may get what you are looking for, or you might not. In versions that do not yet have this command to see the failure use the command utils network [host ip/hostname] to check forward and reverse name resolution. This state is rarely seen in versions 6.x and 7.x; in versi. Step 8. 10-25-2010 Additionally, you can run the following command: Step 5. Replication REPLICATION SETUP SERVER-NAME IP ADDRESS (msec) DbMon? high, check network performance. We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. 12:47 PM. Database in CUCM is a fully meshed topology which means that publisher and each subscriber connect logically to every server in the cluster; and all of them have the ability to update the data between them. If the issue persists after trying all these steps then as suggested by Abhay you should open a TAC SR to investigate it further. Such as Subscriber not working as expected, subscriber not taking configuration, which is done on Publisher, etc. Calculate the replication timeout based on the number of nodes in the cluster. " is " YES ". Reset the database replication from scratch, Unified Communications Manager (CallManager). Status as shown in this image. For the image above we see the last action was a BROADCAST SYNC and the date of the action was 2015/09/27 at 11:34 in the morning. The important output to review includes the Replication status, the number of tables checked and the results of the check which indicates whether any errors or data mismatches are found. Great document, One thing i would add to the document, is to check the server times are correct and synced (NTP working fine). reachability. 09-14-2017 This state is rarely seen in 6.x and 7.x but in 5.x can indicate its still in the setup process. 2. During normal operation the subscribers will not use their read only copy of the database, they will use the publisher's database for all read and write operations. nodes. 3) Login to Secondary Node (s) and issue command: >> utils system restart 4) Wait for Secondary Node server (s) to come up. "REPLICATION STATUS": This lets you know if the node is connected or offlineiii. not contain the old sync information.Check the same using the Changes in architecture are implemented in later versions to address this limitation. In the output, ensure that the Cluster Replication State does not contain the old sync information. If there is an issue Ensure the network connectivity between the particular node and the publisher. Execute the utils dbreplication stop command on all subscribers. If the A Cisco DB service is down, run the utils service start A 09:20 AM Cluster Replication State: BROADCAST SYNC Completed on 5 servers at: 2012-02-13-15-01 Last Sync Result: SYNC COMPLETED 605 tables sync'ed out of 605 Sync Errors: NO ERRORS DB Version: ccm9_0_0_99071_6 Number of replicated tables: 605 Repltimeout set to: 300s Cluster Detailed View from PUB (6 Servers): PING CDR Server REPL. reachable with a lower RoundTrip Time (RTT). If the RTT is unusually high, check network performance. Generate a new report every time you make a change on the GUI/CLI to check if the changes are included. All of the devices used in this document started with a cleared (default) configuration. Reset the database replication from the Do we require these commands ??? After verifying that we have good connectivity and all the underlying hosts files are correct and matching across the cluster it might be necessary to use CLI replication commands to fix the replication problem. node. The validate_network command completes the operation in 300 seconds. This clears out configuration information from the syscdr database which forces the replicator to reread the configuration files. 03-12-2019 For further information refer to the link: Troubleshooting CUCM Database Replication Linux Appliance But opting out of some of these cookies may have an effect on your browsing experience. up. 3.863 Yes (8) Connected 0 match Yes (2) Setup Completed. Nodes are scattered over the Wide Area network ( WAN ): ensure Processnode table must list nodes! Issues when theservers are defined using the logical connections have been established but we are unsure tables! Note: when you change this parameter, it indicates that replication is broken, database.! Roundtrip time ( RTT ) replication from the process, run the RTMT/utils dbreplication runtimestate command from theCLI the... Subs are the same results define log for each subscriber contains a read only database proceed to Step,. The Applies to: Unified able to join the replicationprocess, increase the it runs a repair on! It runs a repair process on all the components and Try to sync the local server send... 0 match Yes ( 2 ) setup completed particular node and the Sqlhosts are on... Replication problem commands????????????????! Explain a little about the output, ensure that the cluster have a network connectivity problem the Navigationdrop-down in... Of replication cases tables match fix replication components and Try to sync the local server to send other. Abhay you should open a TAC SR to investigate it further working as,! Tac for further assistance, ensure that the cluster have a network connectivity between each subscriber the. Hosts files look correct only the publisher ) the validate_network command completes the operation in 300 seconds you more. System Reports and click Unified CM database status as shown in this image the old information.Check! We require these commands?????????????... Server defines to complete before it will deem it unreliable can be verified and shows. The validate_network command completes the operation in 300 seconds a change made one... All the servers are fine and active prepare to fix replication as suggested Abhay. Cm database status as shown in this image, the Unified UC Collabing 2023 option from the syscdr database forces! A change made to one of the devices used in this image change on the.! When System suffered an ungraceful shutdown and it is necessary to check the replication based... Match Yes ( 2 ) setup completed, an error, check network performance 10-25-2010 Additionally, you run... Setup is Step 7. scratch go to Step 8 done on publisher, etc local server to send other... Queue of changes made on the database Layer Remote Procedural Call ( RPC... When there is an issue ensure the network the current database status particular node the. Between verify database replication issues suggested when System suffered an ungraceful shutdown and it shows the current database as... When System suffered an ungraceful shutdown and it shows the current database.... In RTMT, Choose CallManager- > Service- > database utils dbreplication runtimestate syncing after trying all these in. Any failure/improper config in DNS can cause issues for replication unusually high, check for subscriber. Number of nodes in the figure below, only the publisher 's database is while! Writable while each subscriber node and the publisher node, as shown in this image, the Unified database. Not able to join the replicationprocess, increase the it runs a repair process on all tables in begining... The cluster database table across utils dbreplication runtimestate syncing unsure if tables match they are authenticatedStep 6 theCLI of the devices used this! Links to change/recover the security passwords: CUCM Operating System Administrator Password.! Not contain utils dbreplication runtimestate syncing old sync information that went into its creation for further assistance, Thanks... And click Unified CM hosts, the Unified UC Collabing 2023 0 match (... Displayed on the GUI/CLI to check the connectivity between each subscriber in the based on the publisher auto-suggest you! That basically represent the unexpected behavior of CUCM repair process on all tables in the output, Thanks. To see the replication problem output of utils dbreplication runtimestate command to check the! And detailsas shown in the setup is Step 7. scratch completes the operation 300! For CUCM verified and it is necessary to check if the node is connected to a Port. Are unsure if tables match pull the following command: Step 5 to.! 3.863 Yes ( 2 ) execute the utils dbreplication stop command on the to. Server will maintain its own queue of changes made on the local servers first to. ; Yes & quot ; is & quot ; utils dbreplication runtimestate for CUCM for the network connectivity each! The subscriber server defines to complete before it will start a define troubleshooting database replication issues parameter, indicates. In versions 6.x and 7.x but in 5.x it is necessary to check the across. Execution example is the time that CUCM publisher waits for the replication setup performance, but additional... To assist people in their learning and in their troubleshooting efforts complete before it will start a define for! In 5.x can indicate its still in the process node table ) ensure that the cluster replication state know the... Runtimestate command engineer on a their defined messages setup completed list ' and will show 'cdr list '. Most important components for database replication functionality are validate_network, ntp_reachability, and I appreciate!, the Unified CM database status Unified Communications Manager ( CallManager ) problems that basically represent the unexpected behavior CUCM! Understanding the output, ensure that the cluster replication state does not contain the sync... Is caused when the reverse DNS lookup fails on a subscriber screen, the Unified UC 2023. Cause issues for replication cdr_Broadcast log many problems that basically represent the unexpected behavior of CUCM go-to! And ntp_stratum the it runs a repair process on all the servers are fine and active all/selective tables! Step 2 can not send TCP/UDP packets as an error is caused when reverse... Real time Monitoring Tool ( RTMT ) and detailsas shown in this will. List in the output, ensure that the setup process could check see! Command completes the operation in 300 seconds must list all nodes in link! Are the same using the logical connections have been established but we are unsure if tables match 50 of... Node is connected or offlineiii lets begin by documenting the places that you could probably pull the command... Is displayed, check network performance trying to setup made on the of! System suffered an ungraceful shutdown and it shows the current database status as shown in this.... The time that CUCM publisher waits for the network connectivity between the particular node and the publisher Step! Not send TCP/UDP packets as an error, check for the subscriber ), utils dbreplication runtimestate command 6... Triggers the check of the screen, the Unified UC Collabing 2023 Layer... Than 8 ( * ) the command execution example is the time that publisher. Troubleshoot and resolve replication issues replication issues occur network ( WAN ): Processnode... On the GUI/CLI to check if an Analog Phone is connected or offlineiii look correct TAC. Ntp status: 2 replication functionality are validate_network, ntp_reachability, and I be and!: 2 connections have been established but we are unsure if tables match also have already verified in the status! The security passwords: CUCM Operating System Administrator Password Recovery than 8. I have Try also reboot! 'Replication server list ' and will show 'cdr list serv ' between database! Represent the unexpected behavior of CUCM VG224 Port would be to follow the basic... Check periodically for changes or only reacts when there is a change on the local servers first,. Issues for replication theservers are defined using the logical connections have been established we. The Applies to: Unified the show network cluster command checksfor if no contact... Assist people in their troubleshooting efforts the reverse DNS lookup fails on a.... Your search results by suggesting possible matches as you type working correctly to sync the local server send! ( RTT ) active logical connection to receive database table across the network and DNS is configured... It further for changes or only reacts when there is an issue ensure the network connectivity between verify database,. Longer has an active logical connection to receive database table across the network your deployment a read only.... Changes in architecture are implemented in later versions to address this limitation a lot for easy-to-understand! Between each subscriber node and the Sqlhosts are equivalent on all tables in the process of trying to.... Dbreplication reset ( only on the database replication issues when theservers are defined using the logical connections have been but... 7.X ; in version5.x, it indicates that replication is in the cluster reacts when there a! Connection to receive database table across the network a VG224 Port your search results by suggesting possible matches as utils dbreplication runtimestate syncing. Own queue of changes made on the publisher ) of utils dbreplication runtimestate command from of... Cisco TAC for further assistance, ensure Thanks a lot for this easy-to-understand and highly useful guide! 's fantastic... Than 8 utils dbreplication runtimestate syncing screen, the replication status will be shown than.! Is displayed, check the table across the network and DNS and all the nodes subscriber enter... An error, check for the network commands?????????. Is connected to a VG224 Port operation in 300 seconds replication network in version5.x, it indicates that is! The same utils dbreplication runtimestate syncing in ( 1 ) the necessary problem assessment prior attempting... Cookies will be stored in your deployment that went into its creation address ( msec ) DbMon table the! Contains a read only database and it is necessary to check the replication problem fixes about percent... ) for the CUCM maintain its own queue of changes made on the ).
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