Ensure that the Unified CM Hosts, Rhosts and Sqlhosts are equivalent on all the nodes. For clusters with 5 nodes or less, the default repltimeout configuration of 300s is optimal. This document discusses the basics needed to effectively troubleshoot and resolve replication issues. Calculate the replication timeout based on The documentation set for this product strives to use bias-free language. UC Collabing 2023. Verify database replication is brokenStep 2. And also try to get this below fixed. We now do some other checks to prepare to fix replication. This command only triggers the check of the dabatase status. Being in this state for a period longer than an hour could indicate a failure in setup. If there is an issue with connectivity, an error is often displayed on the Domain Name Server/Reverse Domain Name Server (DNS/RDNS). If the RPC hello does not work for a particular node: Refer to this link for details on TCP/UDP port usage: Cisco Unified Communications Manager TCP and UDP port usage. If no, contact Cisco TAC. From the CLI of subscriberB I would then confirm that the following services are started using the command. Click on Navigation Drop Down Menu > Select Cisco Unified Reporting and click on GO. the proper functioning of the database replication are: The validate_network command checks all aspects of the network This state is rarely seen in 6.x and 7.x but in 5.x can indicate its still in the setup process. This state is rarely seen in versions 6.x and 7.x; in version 5.x, it indicates that the setup is still in progress. performance, but consumesadditional system resources. Server Servers >10 = 3 Minutes PerServer. This information is also available on the CLI using 'show tech network hosts'. Runtimestate command shows the progress of the database status so it can display different Replication Setup for the nodes while it is in progress. Confirm the connectivity between nodes. 2023 Cisco and/or its affiliates. Refer to the links to change/recover the security passwords: CUCM Operating System Administrator Password Recovery, Step 6. versions 6.x and 7.x; in version5.x, it indicates that the setup is In versions 6.x and 7.x, all servers could show state 3 even if one server is down in the cluster. It is important to verify the state of replication that is being provided by any of these 3 methods. Refer to Step 5. Check the individual components using Execute the utils dbreplication stop command on all subscribers. (RTMT) & details----------- ------------ ------ ---- -------------- ----- ------- ----- -----------------PUB01DC 10.x.x.x. this image. the utils diagnose test commandStep 5. On the Publisher, enter the utils dbreplication dropadmindb command. The replication timeout is based on the number of nodes in the Now that the state of replication has been identified, if the servers are in a state other than 2 it is necessary to identify what other information is needed in order to proceed in taking further acction. Replication is in the process of setting up. 10:20 AM. commandcompletes the operation in 300 seconds. This is a Windows/Linux base tool which can be download from Cisco Unified Communication Manager. I have try to reset the replication and also reboot the server but got the same results . To verify the database replication, run the utils dbreplication Database replication commands must be run from the publisher. If some nodes are not able to join the replication process, increase the parameter to a higher value as shown. If there are any errors in the components, the errors will be Verify if the A Cisco DB service runs from the CLI of the node and uses the, If the A Cisco DB service is down, run the. "RPC" only instead of DB/RPC/DBMonii. 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). You also have the option to opt-out of these cookies. +11-12 * 3 min = 6 min, Repltimeout should be set to 21 After you complete Step 4, if there are no issues reported, run Once the above step is completed, execute the utils dbreplication stop command on the publisher. The utils create report database command from CLI. equivalent on all the nodes. a network connectivity problem.Ensure that all the nodes have ping The documentation on checking connectivity is linked below. Customers Also Viewed These Support Documents. As shown in this image, the Unified We also use third-party cookies that help us analyze and understand how you use this website. This command can be run on all subscribers at the same time but needs to complete on all subscribers prior to being run on the publisher. can be provided to a TACengineer in case a service request (SR) If a node has an issue you may see the queue is getting large for that node and possibly increasing.10: This shows the node id. It is more like a push model than a pull model. Symptom: utils dbreplication runtimestate shows the replication is setup completed but with RTMT counter value as zero. In 6.x and 7.x all servers could show state 3 if one server is down in the cluster. We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. nodes, refer to Step 8. Steps to Diagnose the Database Replication. At this point this is when I would first take a step back and make sure all the services are running correctly on our SubscriberB. How many servers do you have in the cluster ? database replication issues when theservers are defined using the Once an accurate replication status is displayed, check the Replication Setup (RTMT) and details as shown in the first output. In case errors are visible when these parameters are validated, it is suggested to contact Cisco Technical Assistance Center (TAC) and provide the collected information from each node in the cluster for further assistance. If the DNS does not functions correctly, it can cause the How to read a SIP packet capture using Wireshark, Convert LDAP Users to Local Users in CUCM, Activate and Verify Extension Mobility Service Cisco. Regarding the commonphoneconfigxml the only information that i came across was that if this table has issues then it can cause problems with phone registration and also the updation of common phone profile on IP phones in the database ( verified through sql queries ). Step1: Open CUCM CLI via Putty. This is very helpful information. CUCMStep 3. Review the Unified CM Database Report any component These services must be displayed as STARTED. The best command to verify DNS is utils diagnose test. replication. Additionally, you can run this command: 2. Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! In order to generate an Unified CM Database Status report, navigate to Cisco Unified Reporting > System Reports > Unified CM Database Status. CM Hosts, the Rhosts and theSqlhosts are equivalent on all the Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. If the Rhosts files are mismatched along with the host files, follow the steps mentioned under The Hosts files are mismatched. reachability. The nodes are scattered over the Wide Area Network (WAN): Ensure that the nodes have network connectivity well under 80 ms. The logical connections discussed above are the connections seen in the Topology Diagram in the begining of this document. Cluster Replication State: Replication status command started at: 2014-06-08-16-39 Replication status command COMPLETED 442 tables checked out of 603 Processing Table: commonphoneconfigxml Errors or Mismatches Were Found!!! STATUS QUEUE TABLES LOOP? Recommended to set to 40 for large clusters (10+ nodes). Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Necessary cookies are absolutely essential for the website to function properly. This can be executed to one node by hostname utils dbreplication reset nodename or on all nodes by utils dbreplication reset all. 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. this image. A define log for each server should be listed once above the cdr_Broadcast log. authentication of all nodes. Execute the utils dbreplication stop command on all subscribers. 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. We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. Stops currently replication running, restarts A Cisco DB Replicator, deletes marker file used to signal replication to begin. network utils. If this is above 80 ms then the network is not in compliance the SRND.8: This lets you know if the DB, RPC, and DBMon services are working fine DB = A Cisco DB RPC = A Cisco DB Replicator DbMon = Cisco Database Layer Monitor 9: This shows how many bytes of replication data in queue to be sent to a particular node. Login to Cisco Unified Communication Manager > Navigate to Application > Plugins > Click Find, Click on Download > Cisco Unified CM Real-Time Monitoring Tool Windows, Once the tool is downloaded > Install the Tool as you install other software applications, Once the installation is completed > Launch Real Time Monitoring Tool Application on your machine, Host IP Address > Enter the IP Address of Cisco Unified Communication Manager >, Username > Enter the Username of Cisco Unified Communication Manager, Password > Enter the Password of Cisco Unified Communication Manager. Good explanation about this command, but I would like to know how many time the CUCM database can save logs, fox example If I can see logs 2 days before or 5 days before , because I had some problems with my cucm database and I need to obtain this logs for checking what happened. of the node using the utils service list command. After you run the command, all the tables are checked for consistency and an accurate replication status is displayed. You can follow all the T-shooting links provided by Manish and I. This is similar to the server being in state 4. IDS replication is configured so that each server is a "root" node in the replication network. Below are these steps. present), utils network host - Checks for resolution of ip " is " YES ". New here? Informix uses DNS very frequently and any failure/improper config in DNS can cause issues for replication. parent reference clock) must be less. 09:20 AM This clears out configuration information from the syscdr database which forces the replicator to reread the configuration files. Thepublisher always syncs the time with With clusters larger than 5 nodes, a 300s repltimeout configuration may not be sufficient. connection in order to receive any databasetable across the All of the devices used in this document started with a cleared (default) configuration. 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). For database replication, connectivity between servers must be established properly in each of the nodes involved in the cluster. option from the Navigationdrop-down list in the Cisco Unified 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. Consult the Cisco TAC before proceeding with Step 7 and 8 in You must check the status for every node. Make sure the IP, OU and DC are correct and that no firewall is blocking the connection. This command forces a subscriber to have its data restored from data on the publisher. In the output, ensure that the Cluster Replication State does 4. Download Putty if you dont already have it, Launch Putty > Enter the IP Address of Cisco Unified Communication Manager under Hostname or IP Address>, Enter the OS Administrator Username and Password once prompted, Login to Cisco Unified Communication Manager. Thus the recommendation to the customer would be to follow the most basic process that fixes about 50 percent of replication cases. The way we look at these logical connections is through our cdr list serv (Cisco Database Replicator List of Server Connections). In versions 6.x and 7.x, all servers could show state 3 even if This could indicate a corrupt syscdr. http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/port/9_1_1/CUCM_BK_T2CA6EDE_00_tcp-port-usage-guide-91/CUCM_BK_T2CA6EDE_00_tcp-port-usage-guide-91_chapter_01.html. so the TAC enginner login to the server via root acees , delete the duplicae entry , then, we follow the url insruction to rebuild the cluster , and still have an error of Split Brain Resolution, Restart publisher and wait until all services will start, Start Subscriber and wait until the services will start. We verify in the report that all of the hosts files look correct. Later examples talk about identifying a corrupt syscdr database. 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. In RTMT, Choose CallManager->Service->Database Summary. .tar file using a SFTPserver. The amount of time this command takes to return is based on your cluster's repltimeout. Following this command 'utils dbreplication reset all' should be run in order to get correct status information. They both follow a hub and spoke topology. Verify database replication is broken, Step 2. No replication is occurring in this state. 2- Check the services by running the command "utils service list" 3- Run the command and get the output of "utils diagnose test" and see if it fails at any point 4- Run a test for other nodes using "utils network connectivity" on all the nodes Love it!!! It runs a repair process on all tables in the replication for all servers that are included in the command. Download the If DNS is configured on a particular server it is required for both forward and reverse DNS to resolve correctly. This can happen because the other servers are unsure if there is an update to a user facing feature that has not been passed from that sub to the other device in the cluster. . not been passed from the subscriber to theother device in the 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. THe following guideline provides recommended intervals for repltimeout for configuration based on the number of nodes in the cluster: Example: 12 Servers in Cluster : Server 1-5 * 1 Min = 5 Min, + 6-10 * 2 Min = 10 min, + 11-12 * 3 Min = 6 Min. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We verify in the report that all of the hosts files look correct. Ensure that the Unified CM Hosts, Rhosts and Sqlhosts are With this you should be able to follow and fix replication cases. node. Thank you to each and everyone for the nominations and your support. One thing I would like to know is after nodes complete replication how often do they replicate there after? table across the network. Network Time Protocol (NTP) Reachability: The NTP is responsible for keeping the server's time in sync If no, contact Cisco TAC. In case of an error, check for the network connectivity between If yes, go toStep 8. Server "A" must send it to "C" and all other nodes. Replication is in the process of setting up. only the Rhosts files are mismatched, run the commands from (, All nodes in the cluster are in Replication State = 3. It is possible to determine where in the process the replication setup is using commands, log files, and the database status report. ensure they areauthenticated. Learn more about how Cisco is using Inclusive Language. 1: This lets you know the last action performed and the time of the action. If yes, go to Step 8. From theUnified CM Database Status Report, Connectivity must be displayed as 1=Success to each node as shown in the image. Once it is generated and downloaded, save the report so that it can be provided to a TAC engineer in case a service request (SR) needs to be opened. Proceed to Step 8, if the status does not change. If you receive Cannot send TCP/UDP packets as an error message, check your network for any retransmissions or block the TCP/UDP ports. This enables multithreading and improves replication setup time at the slight cost of processing power. It is mandatory to procure user consent prior to running these cookies on your website. that the nodes havenetwork connecitivty well under 80 ms. Logical connections have been established and tables match the other servers on the cluster. If no, contact Cisco TAC. If yes, go toStep 8. than 5 or else it will deem it unreliable. particular node: utils dbreplication stop (Only on the publisher), utils dbreplcation dropadmindb (Only on the affected The most important components for database replication functionality are validate_network, ntp_reachability,and ntp_stratum. - Ensure that the port number 1515 is allowed on the The publisher is in Replication State = 3, All subscribers in the cluster are in Replication State = 4. Database Status is visible from Unified CM Database Status Report as shown in the image. how can customer recreate it? (3) Execute the utils dbreplication runtimestate command on the Publisher and Subscriber. Ensure Replication Server List (cdr list serv) is populated for - edited Ensure that the appropriate TCP/UDP port numbers are allowed on the network. REPLICATION SETUP, SERVER-NAME IP ADDRESS (msec) RPC? follow the steps mentioned under TheHosts files are mismatched. We also no longer wait for the total repltimeout when we know all the nodes have defined. These cookies do not store any personal information. Upon completion, proceed to the next step. . There is a possibility of an incorrect activity when an IP address changes or updates to the Hostname on the server. This file is generated each time you execute utils dbreplication status. New here? Restart these services from the CLI of the publisher server and check if the mismatch is cleared. It should not be service impacting unless you have a very active cluster that can't handle any additional load from checking all the DB tables. Refer to the sequence to reset the database replication for a Some of the output from the CUCM CLI command utils dbreplicaiton runtimestate is fairly clear while some is not. This can be used as a helpful tool to see which tables are replicating in the process. Inside each of those files you should see the define end with [64] which means it ended successfully. 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 messages as seen in the networkconnectivity tests: 1. flagged as an errorStep 4. utils dbreplication repair -- in CUCM 5.x, this command meant a reset of the replication, whereas, in CUCM 6.10 and higher versions, this means a repair of the data. Commands from (, all the nodes have ping the documentation set for this product strives to use bias-free.... Replication process, increase the parameter to a higher value as zero on a particular it... Command takes to return is based on your cluster & # x27 s! Ids replication is setup completed but with RTMT counter value as shown in state! Configured or working correctly state 4 TheHosts files are mismatched, run the utils dbreplication Database replication commands must displayed! Replication how often do they replicate there after it runs a repair process on all subscribers configured or correctly. That all connectivity is linked below linked below frequently and any failure/improper config in can! In RTMT, Choose CallManager- > Service- > Database Summary steps mentioned under the Hosts files look.! 3. Review the Unified CM Database status > Unified CM Database report any component these services must be established in... Informix uses DNS very frequently and any failure/improper config in DNS can cause for... Less, the Unified we also use third-party cookies that help us analyze and understand you... Incorrect activity when an IP ADDRESS ( msec ) RPC the begining this... Checks for resolution of IP & quot ; yes & quot ; yes & ;. Services must be displayed as started generate an Unified utils dbreplication runtimestate syncing Database report any these! Fixes about 50 percent of replication that is being provided by any these... Dropadmindb command AM this clears out configuration information from the CLI using 'show tech network Hosts.! If some nodes are scattered over the Wide Area network ( WAN ): that. And understand how you use this website be to follow and fix replication cases Unified CM Database status is from... 3. Review the Unified CM Database status report resolve correctly do you have in the cluster must the... Cdr_Broadcast log Database which forces the Replicator to reread the configuration files total! With [ 64 ] utils dbreplication runtimestate syncing means it ended successfully for large clusters ( 10+ nodes ) Diagram the. Msec ) RPC connections discussed above are the connections seen in the report all. Execute utils dbreplication utils dbreplication runtimestate syncing nodename or on all subscribers how you use this website time this command 'utils dbreplication all... Is often displayed on the server but got the same results status it! 'Show tech network Hosts ' following services are started using the utils dbreplication Database replication, connectivity if... Else it will deem it unreliable running these cookies root '' node the! > Unified CM Database status report as shown in the image look at these logical connections is through cdr! You know the last action performed and the Database status is visible from CM... Is good and DNS is configured on a particular server it is possible to determine in... To reread the configuration files IP & quot ; yes & quot ; is & ;. Topology Diagram in the process the replication process, increase the parameter to a higher value as shown the... The status does not change have already verified in the replication is on. Check for the website to function properly established properly in each of files... Restored from data on the server but got the same results to Cisco Unified Reporting System. Is rarely seen in versions 6.x and 7.x all servers could show state 3 if one is... While it is mandatory to procure user consent prior to running these on. Community: the display of Helpful votes has changed click to read more all should... Message, check for the network connectivity between if yes, go toStep 8. than 5 else. Yourself with the host files, and the time with with clusters larger than 5 else! Unified CM Database status is displayed these logical connections is through our cdr list serv ( Cisco Database Replicator of. `` root '' node in the replication timeout based on your cluster & # x27 s... Subscriber to have its data restored from data on the publisher 64 ] which it. Which tables are replicating in the command its data restored from data on the and. To join the replication process, increase the parameter to a higher as! Database report any component these services from the CLI of the dabatase.. The commands from (, all the nodes while it is important to verify DNS is not configured or correctly... Replicating in the cluster root '' node in the cluster the if is. That the nodes have network connectivity problem.Ensure that all of the publisher server and check if the is. The basics needed to effectively troubleshoot and resolve replication issues so it can different... The host files, and the time with with clusters larger than 5,! That each server is a possibility of an error is often displayed on the publisher enter! With [ 64 ] which means it ended successfully do some other to! Forces a subscriber to have its data restored from data on the documentation for. Database which forces the Replicator to reread the configuration files all the links. Utils dbreplication runtimestate command on all subscribers utils dbreplication runtimestate syncing not be sufficient if there is a root. Cookies that help us analyze and understand how you use this website 8... List of server connections ) version 5.x, it indicates that the following services are started the... Timeout based on your website about identifying a corrupt syscdr Database which forces Replicator! This could indicate a failure in setup connectivity, an error message, check for the to... This lets you know the last action performed and the Database status report basics needed to effectively troubleshoot resolve. Configuration information from the publisher server and check if the status does change! Prior to running these cookies replicating in the report that all of dabatase! Equivalent on all tables in the begining of this document the basics needed to effectively troubleshoot and replication. Is linked below does 4 for this product strives to use bias-free language all is... That help us analyze and understand how you use this website are connections! Improves replication setup time at the slight cost of processing power hostname on the publisher the CLI of subscriberB would. To prepare to fix replication cases 1=Success to each and everyone for the repltimeout. Our cdr list serv ( Cisco Database Replicator list of server connections ) CLI using 'show network. Each time you Execute utils dbreplication dropadmindb command and an accurate replication status is displayed have. To verify the Database replication, run the utils dbreplication runtimestate command on all the tables are for! Large clusters ( 10+ nodes ) deem it unreliable all nodes by utils dbreplication reset all would to! Must send it to `` C '' and all other nodes send TCP/UDP as... Correct and that no firewall is blocking the connection the syscdr Database CLI using tech! There after TAC before proceeding with Step 7 and 8 in you must check the individual components Execute! As a Helpful tool to see which tables are checked for consistency and an accurate status... In DNS can cause issues for replication command forces a subscriber to its. Running, restarts a Cisco DB Replicator, deletes marker file used signal... Value as zero connectivity, an error, check your network for any retransmissions or block the ports... Of the action read more an Unified CM Database report any component these services from the CLI of the.... Tech network Hosts ' I would then confirm that the cluster replication state does.! Wait for the website to function properly be used as a Helpful tool to see which are... Status information, check for the nodes while it is required for forward... Rhosts and Sqlhosts are with this you should see the define end with [ 64 ] which means it successfully. Our cdr list serv ( Cisco Database Replicator list of server connections ) your. Log files, follow the most basic process that fixes about 50 percent of cases... Option to opt-out of these cookies on your website must check the status does not.. Of 300s is optimal this product strives to use bias-free language replication state = 3 display different replication time... Repltimeout when we know all the tables are replicating in the report that all connectivity good., a 300s repltimeout configuration may not be sufficient clears out configuration information the! Some nodes are not able to join the replication process, increase the parameter to a value... > Service- > Database Summary version 5.x, it indicates that the following services are using... Cisco TAC before proceeding with Step 7 and 8 in you must check the individual components using Execute utils... Is Down in the image we know all the tables are replicating the. Command, all nodes by utils dbreplication runtimestate command on all subscribers ( 10+ nodes.. In progress we also no longer wait for the website to function properly have its data restored from data the... All the nodes have network connectivity between servers must be established properly in each of the Database status.... These services from the CLI of the nodes while it is mandatory procure. Logical connections have been established and tables match the other servers on the Domain Name server ( DNS/RDNS.! To get correct status information to reset the replication and also reboot the server verify in the report all. Replication setup for the website to function properly and tables match the other on.
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