The nodes are scattered over the Wide Area Network (WAN): Ensure 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 The documentation set for this product strives to use bias-free language. The publisher is in Replication State = 3, SubscriberA is in Replication State =3 and SubscriberB is in Replication State = 4. Logical connections are established but there is an unsurety Informative and detailed doc.. Easy to understand. These files play a role in what each server will do and which servers we will trust. Reporting pageon the CUCM. After you run the command, all the tables are checked for Symptom: Platform replication can be checked using the following commands on the CLI: utils dbreplication status utils dbreplication runtimestate Conditions: -PUT REST call for /cuic/rest/cuicusers updating each cuicuser table record as many itmes as the number of users exits. Database Status is visible from Unified CM Database Status Report as shown in the image. 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. We now do some other checks to prepare to fix replication. You don't need to do a full stop/reset unless the nodes aren't setting up at all. Below is the /etc/hosts as displayed Verified in Unified Reporting. 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. This document will explain a little about the output to assist people in their learning and in their troubleshooting efforts. If you're fine running those in the middle of the day, this should be fine as well. Processnode table must list all nodes in the cluster. They both follow a hub and spoke topology. There can be many problems that basically represent the unexpected behavior of CUCM. hello is successful, asshown in this image. Following this command 'utils dbreplication reset all' should be run in order to get correct status information. Logical connections have been established and tables match the other servers on the cluster. Step2: Put the command "utils dbreplication runtimestate". Cluster Detailed View from PUB01DC (3 Servers): PING CDR Server REPL. 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. network utils. Logical connections have been established but we are unsure if tables match. NOTE: If the date and time is old, execute a utils dbreplication status to get updated data. 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. If you receive Cannot send TCP/UDP packets as an error message, check your network for any retransmissions or block the TCP/UDP ports. 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. On the Publisher and Subscriber, enter the utils dbreplication runtimestate command. In case of an error, check for the network connectivity between the nodes. On the right hand side of the screen, the replication status will be shown. You must check the status for every node. utils dbreplication statuscommand to check all the tables and the The documentation on checking connectivity is linked below. It runs a repair process on all tables in the replication for all servers that are included in the command. Perform the procedure in the off business hours. Ensure that the Database Layer Remote Procedural Call (DBL RPC) For clusters with 5 nodes or less, the default repltimeout configuration of 300s is optimal. flagged with a red cross icon, asshown in this image. . Some of the output from the CUCM CLI command utils dbreplicaiton runtimestate is fairly clear while some is not. In case of an error, check for the network connectivity between 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. 4. particular node: utils dbreplication stop (Only on the publisher), utils dbreplcation dropadmindb (Only on the affected If this fails, contact the If no, contact Cisco TAC. Generate a new report and check if the Rhost files are This file is used to locally resolve hostnames to IP addresses. CM Hosts, the Rhosts and theSqlhosts are equivalent on all the If the Sqlhosts are mismatched along with the host files, follow the steps mentioned under The Hosts files are mismatched. The show network cluster command checksfor message, check your network forany retransmissions or block the Note: This command is no longer functional as of CUCM 9.0(1). Overall replication setup time is improved, although It still comes into play during a node down and upgrade scenarios when node reboots are spread out over time. (, All nodes in the cluster are in Replication State = 3. one by one then the publisher), utils dbreplication reset all ( Only on the publisher ). 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. Refer to this link in order to change IP address to the Hostname for the CUCM. 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. show tech network routes. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Proceed to Step 8, if the status does not change. It is necessary to check other replication requirements before taking any action in solving the replication problem. It is important to verify the state of replication that is being provided by any of these 3 methods. 05:50 AM 2. ensure they areauthenticated. 4. Navigate to System Reports and click Unified CM Database Status as shown in this image. The actual optimal repltimeout can vary per cluster depending on WAN Latency, cluster density, and other factors, so this is just a guideline. 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. Complete these steps in order to check NTP status: Use the utils diagnose test command to check the output, as This category only includes cookies that ensures basic functionalities and security features of the website. address/Hostname. Note: Allow all the tables to be checked and then proceed further to troubleshoot. 03-12-2019 Once the above step is completed, execute the utils dbreplication stop command on the publisher. Once that command is COMPLETED, outputs can be verified and it shows the current database status. If yes, go to Step 8. 3. issues and provides the stepsnecessary to troubleshoot and resolve network intensive task as it pushesthe actual tables to all the - edited How many servers do you have in the cluster ? We verify in the report that all of the hosts files look correct. Sets the "process" value within Informix. This issue can occur because the other servers are unsure Introduced in 7.x, these commands fix only the tables that have mismatched data across the cluster. Ensure that: The nodes are in the same Data Center/Site: All the nodes are reachable with a lower Round Trip Time (RTT). This error is caused when one or more nodes in the cluster have The logical connections discussed above are the connections seen in the Topology Diagram in the begining of this document. 1: This lets you know the last action performed and the time of the action. their defined messages. Additionally, you can run the following command: Step 5. You may get what you are looking for, or you might not. Cisco recommends that you have knowledge of these topics: The information in this document is based on these software versions: The information in this document was created from the devices in a specific lab environment. Cisco Unified Reporting on Cisco Unified Communication Manager (CUCM). Steps to Diagnose the Database Replication, Step 1. If no, contact Your email address will not be published. start the process from the scratch. Replication is continuous. Ensure that the port number 1515 is allowed on the network. How to read a SIP packet capture using Wireshark, Convert LDAP Users to Local Users in CUCM, Activate and Verify Extension Mobility Service Cisco. Generate a new report that uses the Generate New Report option or click the Generate New Report icon as shown in this image. Run this command when RTMT = 2, not when RTMT = 0 or 3. Inside each of those files you should see the define end with [64] which means it ended successfully. Note: Changing this parameter improves the replication setup Products & Services; Support; How to Buy; Training & Events; Partners; Cisco Bug: CSCue41922 . Since the subscriber's database is read only and the publisher's database is inaccessible, no changes are permitted to the database during the failover period. There is a possibility of an incorrect activity when an IP Multi-Language Call Routing Unity Connection. Being in this state for a period longer than an hour could indicate a failure in setup. . Learn more about how Cisco is using Inclusive Language. utils dbreplication runtimestate Runtimestate command shows the progress of the database status so it can display different Replication Setup for the nodes while it is in progress. In case you reach the Cisco TAC for further assistance, ensure than 5 or else it will deem it unreliable. This state is rarely seen in 6.x and 7.x but in 5.x can indicate its still in the setup process. In 7.1.2 and later utils dbreplication stop all can be run on the Publisher node to stop replication on all nodes, Always run from the publisher node, used to reset replication connections and do a broadcast of all tables. The documentation set for this product strives to use bias-free language. still in progress. It is important to understand that the database replication is a This is an important step. Below are these steps. the utils diagnose test commandStep 5. "utils dbreplication runtimestate" i get an output of that the replication not setup . 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. of sync ornot requested statuses. 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. If all the nodes are in a state of 2, you can just do "utils dbreplication repair all" from the publisher and it will so a soft check/fix of all tables. Refer to this link for details on TCP/UDP port usage: Cisco Unified Communications Manager TCP and UDP port usage. That has slowed me down fixing some DB replication issues. As shown in this image, the Unified CM Hosts, the Rhosts and the Sqlhosts are equivalent on all the nodes. 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!!! Error checking is ignored. status again. Once it is generated, download and save the report so that it Restart the following services from the CLI of the publisher After all subscribers have been defined we then wait the repltimeout (Can check from show tech repltimeout) it will then do a broadcast file that actually pushes the replicates across. In versions 6.x and 7.x, all servers could show state 3 even if one server is down in the cluster. Unified Communications Manager, check utils dbreplication status on the subscriber (s) or if you have CUCM 7.1.5 check utils dbreplication runtimestate. Check the connectivity testcommand. Ensure that: The nodes are in the same Data Center/Site: All the nodes are a network connectivity problem.Ensure that all the nodes have ping Server Servers >10 = 3 Minutes PerServer. My go-to when troubleshooting database replication. The amount of time this command takes to return is based on your cluster's repltimeout. 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. In the output, ensure that the Cluster Replication State does Can some one explain the difference between below commandUtils dbreplication status & Utils dbreplication runtime state. admin:utils dbreplication runtimestate. Generate a new report, and check for a successful connection. "REPL. The TCP and UDP Port Usage documents describe which ports need to be opened on the network. utils dbreplication stop on all subscribers. 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 - edited If the RPC hello does not work for a particular node: - Ensure the network connectivity between the particular node The first step to fix replication properly is to first identify what the current state of replication is in the cluster. In order to determine whether your database replication is broken, you must know the various states of the Real Time Monitoring Tool (RTMT) for the replication. The following table lists each command and it's function. In 6.x and later, because of the fully meshed topology, it is necessary to check replication between every node in the cluster. Replication is in the process of setting up. The replication timeout is based on the number of nodes in the !" if errors or mismatches are detected on the UCCX platform database replicates. The files we are referring to here are listed below. equivalent on all the nodes. present), utils network host - Checks for resolution of ip I choose to ask for the Database Status report as the customer is in a version that has this available. All the nodes have the connectivity to each other. CUCM Database Replication is an area in which Cisco customers and partners have asked for more in-depth training in being able to properly assess a replication problem and potentially resolve an issue without involving TAC. Verify database replication is brokenStep 2. 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 ). To verify the database replication, run the utils dbreplication runtimestate command from theCLI of the publisher node, as shown in this image. It depends on the environment. This information is also available on the CLI using 'show tech network hosts'. No replication is occurring in this state. Refer to the sequence to reset the database replication for a No replication occurs in this state. Network Time Protocol (NTP) Reachability: The NTP is responsible for keeping the server's time in sync for the CUCM. Check Database Replication using Cisco Unified Reporting on Cisco Unified Communication Manager (CUCM) Login to Cisco Unified Communication Manager Error, Intra-cluster communication is broken, as shown in this image. At the publisher server, issue the utils dbreplication reset all. A define log for each server should be listed once above the cdr_Broadcast log. Reset the database replication from the scratch Refer to the sequence to reset the database replication and start the process from the scratch. parameter to a higher value as shown. this image. You can also look in the informix log on that box to confirm this. A. replication is in this state for more than an hour. It is essential that the NTP stratum (Number of hops to the the Cisco TAC. returns a passed/failed value.The components that are essential for Repair all/selective the tables for It should include the hostname and IP address of all nodes in the cluster including CUPS nodes. If no, contact Cisco TAC. 09-14-2017 timeout ). high, check network performance. Note: In some case, restarting the service may work, cluster reboot may not be required. Can you get the output of show network eth0 detail ? This can be executed to one node by hostname utils dbreplication reset nodename or on all nodes by utils dbreplication reset all. server a, Cluster Manager ( utils service restart Cluster Manager), A Cisco DB ( utils service restart A Cisco DB). http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/8_5_1/portlist851.html, http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/8_0_2/portlist802.html, Check all the hosts files that will be used when setting up replication. This document will explain a little about the output to assist people in their learning and in their troubleshooting efforts. nodes are not able to join the replicationprocess, increase the (3) Execute the utils dbreplication runtimestate command on the Publisher and Subscriber. the number of nodesin the cluster. status from all the nodes and ensure they are authenticatedStep 6. As shown in this image, the Unified equivalent on all the servers. That would be covered under the "utils diagnose test" section. In 6.x and 7.x all servers could show state 3 if one server is down in the cluster. This command only triggers the check of the dabatase status. Great articleappreciate your hard work on this stuff ! Run the utils dbreplication runtimestate command to check the Replication REPLICATION SETUP SERVER-NAME IP ADDRESS (msec) DbMon? value ), utils dbreplication setrepltimeout ( To set the replication node. Use show network cluster command in order to confirm that nodes are authenticated between each other. on the network. 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. Non user facing features (such as changes to route patterns or gateways) still require the publisher to be accessible in order to make modifications. Logical connections are established and the tables are matched with the other servers on the cluster. Network Time Protocol (NTP) Reachability: The NTP is responsible to keep the server's time in sync with the reference clock. Below is the list and then an excerpt from the cdr_broadcast log (Broadcast shown in Yellow Box). Step 7. connectivity with all the nodesin the cluster. Definition: The server is up and the publisher is connected to the server b. If the status of the node is unauthenticated, ensure that the network connectivity and the security password is same on all the nodes, as shown in this image. To monitor the process, run the RTMT/utils dbreplication theCLI: A Cisco DB ( utils service restart A Cisco DB ). Download the New here? 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). Communications Manager 5.x has a similar replication topology to Callmanager 4.X. 3. If theCisco Database Replicator (CDR) list is empty for some nodes, refer to Step 8. After you complete Step 1, choose the Cisco Unified Reporting option from the Navigation drop-down list in the Cisco Unified Communications Manager (CUCM) publisher, as shown in this image. Commands to check/set the replication timeout: Steps 7 and 8 must be performed after the checklist is fulfilled: If the utils dbreplication runtimestate command shows that there are error/mismatched tables, run the command: Run the utils dbreplication runtimestate command to check the status again. LDAP Sync Issues. Consult Cisco TAC before you proceed with Step 7 and 8 in case of nodes greater than 8. Verify if the A CiscoDB service is running from the CLI are error/mismatched tables,run the command: https://supportforums.cisco.com/document/65041/how-reset-passwords-cucmhttps://supportforums.cisco.com/document/60721/cucm-operating-system-administrator-password-recovery. nodes, as shown in this image: If the network connectivty fails for the nodes: - Ensure that the network reachability is present between the Reset the database replication from the 11:02 PM, I have deleted one of the subscriber from the CUCM publisher and the database replication showing me as such, how the tables will be sync and how the commonphoneconfigxml tables will move further. 3) Login to Secondary Node (s) and issue command: >> utils system restart 4) Wait for Secondary Node server (s) to come up. Informix uses DNS very frequently and any failure/improper config in DNS can cause issues for replication. For database replication, connectivity between servers must be established properly in each of the nodes involved in the cluster. Steps to Diagnose the Database Replication. admin:utils dbreplication runtimestate Understanding the output of utils dbreplication runtimestate for CUCM. network. Wait for it to complete before you start the next step. The full list of user facing features is located on the following slide. stateother than 2, continue to troubleshoot. Use this command only after the 'utils dbreplication repair' command has been run several times and the 'utils dbreplication status' ouput still shows non-dynamic tables out of sync. flagged as anerror. Cisco highly recommends to configure a Network Time Protocol (NTP) server with Stratum-1, Stratum-2, or Stratum-3 in CUCM publisher, in order to ensure that the cluster time is synchronized with an external time source. After you run the command, all the tables are checked for consistency and an accurate replication status is displayed. 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. Recommended to set to 40 for large clusters (10+ nodes). Cisco Database Replicator (CDR) list of servers is in no way related to Call Detail Records (also known as CDR). whether there is an updateto the User Facing Feature (UFF) that has However, all of the nodes must be authenticated (ensure that the security password is same on all of the nodes). Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! The following list shows the possible values for Replicate_State when you run the utils dbreplication runtimestate Command Line Interface (CLI) command on the first node in your cluster. only the Rhosts files are mismatched, run the commands from Click on Navigation Drop Down Menu > Select Cisco Unified Reporting and click on GO. Lets begin by documenting the places that you could check to see the replication state. All of the devices used in this document started with a cleared (default) configuration. This could indicate a corrupt syscdr. Bullet point number 2 references what to look at for checking the progress with utils dbreplication runtimestate.2: This tells you if any tables were repaired, and how many tables have been checked after you executed the utils dbreplication status command3: If there are tables out of sync you will see something similar to "errors or mismatches found"4: Using this file view command allows you to look at the file in the activelog. Refer to this link in order to change IP address to the Hostname Server no longer has an active logical connection in order to receive any database table across the network. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. After the Cluster reboot, i tried to execute the command "utils dbreplication runtimestate" and this time disappeared. case of nodes greater than 8. Command utils service list displays the services and its status in CUCM node. Cisco TAC. g_# with the number being the node id. 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. All Rights Reserved. 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. With this you should be able to follow and fix replication cases.
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