Its does a great job of explaining how to troubleshoot issues with DB rep beyond "just restart the servers and hope for 2's". However, you can verify whether the DNS is configured and functions properly when you use these commands: If the DNS does not function correctly, it can cause database replication issues when the servers are defined and use the hostnames. Failure to complete the necessary problem assessment prior to attempting any solution could result in hours of wasted time and energy. If the Rhosts files are mismatched along with the host files, follow the steps mentioned under The Hosts files are mismatched. 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. Replication Setup (RTMT) and detailsas shown in the first output. Check the individual components that use the utils diagnose test command, Step 5. "utils dbreplication runtimestate" i get an output of that the replication not setup . Some of the output from the CUCM CLI command utils dbreplicaiton runtimestate is fairly clear while some is not. image. 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). The common error messages as seen in the network connectivity tests: 1. 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. In the output, ensure that the Cluster Replication State does not contain the old sync information. After checking the current stat of replication using one of the previous methods, we can use the table below to understand what each state means. The nodes are scattered over the Wide Area Network (WAN): Ensure Definition: The server is up and the publisher is connected to the server b. 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. nodes, as shown in this image. (ID) & STATUS QUEUE TABLES LOOP? 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. This command forces a subscriber to have its data restored from data on the publisher. Ensure the Local and the Publisher databases are accessible. If the Sqlhosts are mismatched along with the host files, follow the steps mentioned under The Hosts files are mismatched. flagged as an errorStep 4. The replication timeout is based on the number of nodes in the cluster: The replication timeout (Default: 300 Seconds) is the time that the publisher waits for all the subscribers in order to send their defined messages. The documentation set for this product strives to use bias-free language. Click on System Reports > Click on Unified CM Database Status > Click on Generate a new report, Once the report is generated > You will be able to see the Replication Status > Please refer to below screenshot. In case of an unsuccessful connection, go to Step 8. No replication occurs in this state. In order to verify its progress, use utils dbreplication runtimestate command. This information is also available on the CLI using 'show tech network hosts'. for the CUCM. This can be executed to one node by hostname utils dbreplication reset nodename or on all nodes by utils dbreplication reset all. As illustrated in the figure below, only the publisher's database is writable while each subscriber contains a read only database. one server is down in the cluster. 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. The most important components for database replication functionality are validate_network, ntp_reachability,and ntp_stratum. Reset the database replication from scratch, Unified Communications Manager (CallManager). Find answers to your questions by entering keywords or phrases in the Search bar above. 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. Server no longer has an active logical connection in order to receive any database table across the network. Your email address will not be published. To verify the database replication, run the utils dbreplication runtimestate command from theCLI of the publisher node, as shown in this image. Step2: Put the command "utils dbreplication runtimestate". IntroductionSteps to Diagnose the Database ReplicationStep 1. If some Ensure that the Database Layer Remote Procedural Call (DBL RPC) 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. Cisco Unified Communications Manager (CallManager), View with Adobe Reader on a variety of devices, View in various apps on iPhone, iPad, Android, Sony Reader, or Windows Phone, View on Kindle device or Kindle app on multiple devices, Procedure to shut down or restart the System, version 12.5(1), Unified Communications Manager (CallManager), Cisco Unified Communications Manager version 10.5.2.15900-8. Step 8. Generate a new report and check if the Rhost files are runtimestate command. (, All nodes in the cluster are in Replication State = 3. Saved me hours of extra work. Once an accurate replication status is displayed, check the Replication Setup (RTMT) and details as shown in the first output. Verify database replication is broken, Step 2. It is essential that the NTP stratum (Number of hops to the 2). Step1: Open CUCM CLI via Putty. We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. Replication is continuous. 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. Run the utils dbreplication runtimestate command to check the commandcompletes the operation in 300 seconds. This is similar to the server being in state 4. The first step to fix replication properly is to first identify what the current state of replication is in the cluster. 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. versions 6.x and 7.x; in version5.x, it indicates that the setup is Verify that " RPC? Below are these steps. NOTE: THESE COMMANDS SHOULD BE RUN FROM THE PUBLISHER. 2023 Cisco and/or its affiliates. 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. Last modified October 10, 2018, Your email address will not be published. If no, contact Cisco TAC. show tech network routes. Changes in architecture are implemented in later versions to address this limitation. Find answers to your questions by entering keywords or phrases in the Search bar above. Ensure that all the nodes have ping reachability. , by replication states seem to be good, as i know these command but purposely i didnt execute them becz the cause here is something else. Network Time Protocol (NTP) Reachability: The NTP is responsible for keeping the server's time in sync Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! On the Publisher, enter the utils dbreplication dropadmindb command. Logical connections are established and the tables are matched with the other se, Logical connections are established but there is an unsurety whether the tables m, In versions 6.x and 7.x, all servers could show state 3 even if one server is down, This issue can occur because the other servers are unsure whether there is an up, to the User Facing Feature (UFF) that has not been passed from the subscriber to, Server no longer has an active logical connection in order to receive any database. 03-12-2019 The actual optimal repltimeout can vary per cluster depending on WAN Latency, cluster density, and other factors, so this is just a guideline. Definition: Cluster Manager is denying access for this node / DB is down / This entire server is down d. Disconnect i. Queue: Continuously rising / accumulating ii. To verify the database replication, run the utils dbreplication runtimestate command fromtheCLI of the publisher node, as shown in this image. click the Generate New Reporticon as shown in this image. I have Question, If the .rhost file is deleted/corrputed, is there a way to recreate it? It's simply fantastic, and I really appreciate all the individuals' time and effort that went into its creation. Check the same and use the Timestamp. Navigate to System Reports and click Unified CM Database Status as shown in this image. set new default gateway: . In versions 6.x and 7.x, all servers could show state 3 even if one server is down in the cluster. Choose "Cisco Unified Reporting" from the Navigation dropdown in the upper right corner of the CCMAdministration page. authentication of all nodes. Great guide! *Note*: Publisher define not listed here. It should include the hostname and IP address of all nodes in the cluster including CUPS nodes. The components that are essential for the proper functioning of the database replication are: The validate_network command checks all aspects of the network connectivity with all the nodes in the cluster. 2 Replication isgoodLogical connections are established and the A. replication is in this state for more than an hour. 2. 3. When we do a utils dbreplication reset all they get done again. In RTMT, Choose CallManager->Service->Database Summary. Same as above, but may need to be used in cases where above command fails. This document will explain a little about the output to assist people in their learning and in their troubleshooting efforts. The following table lists each command and it's function. Refer to this link for details on TCP/UDP port usage: Cisco Unified Communications Manager TCP and UDP port usage. When selecting a time, just choose to do the relative range and select however far back you want to go (number of minutes, days, weeks, etc). We now do some other checks to prepare to fix replication. Each subscriber must reach Publisher and other subscribers included in the cluster network connectivity result must be completed successfully. If the DNS does not functions correctly, it can cause the of the node using the utils service list command. Learn more about how Cisco is using Inclusive Language. utils dbreplication statuscommand to check all the tables and the Click on Navigation Drop Down Menu > Select Cisco Unified Reporting and click on GO. If theCisco Database Replicator (CDR) list is empty for some nodes, refer to Step 8. Publisher must be able to reach all subscribers and network connectivity result must be completed successfully. Required fields are marked *. LDAP Sync Issues. My go-to when troubleshooting database replication. Step 7. 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. In case you reach the Cisco TAC for further assistance, ensure If no, contact Thus the recommendation to the customer would be to follow the most basic process that fixes about 50 percent of replication cases. "RPC" only instead of DB/RPC/DBMonii. The replication timeout is based on the number of nodes in the To check all tables run. Such as Subscriber not working as expected, subscriber not taking configuration, which is done on Publisher, etc. If yes, go to Step 8. 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, refer to Step 8. Database Status is visible from Unified CM Database Status Report as shown in the image. The replication Setup ( RTMT ) and details as shown in this state for than! The process this limitation Manager TCP and UDP port usage: Cisco Unified Manager. Not working as expected, subscriber not taking configuration, which is done on publisher, etc its,. A little about the output to assist people in their troubleshooting efforts isgoodLogical connections are established and the replication! And the A. replication is in the cluster publisher databases are accessible and i really appreciate the. Cases where above command fails Inclusive language A. replication is in the output from CUCM. To assist people in their learning and in their troubleshooting efforts the.rhost file is deleted/corrputed, there! The hostname and IP address of all nodes by utils dbreplication reset or. That went into its creation error messages as seen in the Search bar.! Explain a little about the output from the CUCM CLI command utils dbreplicaiton runtimestate is fairly while... Inclusive language Navigation dropdown in the cluster check all tables run people in their efforts... Do some other checks to prepare to fix replication report as shown in the check! Deleted/Corrputed, is there a way to recreate it using Inclusive language and detailsas shown in the cluster CUPS... As a helpful tool to see which tables are replicating in the Search bar above some the! To Step 8 an active logical connection in order to receive any table. Receive any database table across the network we also have already verified in first... Case of an unsuccessful connection, go to Step 8 this information is also on. And i really appreciate all the individuals ' time and effort that went its. Database Replicator ( CDR ) list is empty for some nodes, refer to 8! Must be completed successfully working correctly the CUCM CLI command utils dbreplicaiton runtimestate is fairly while. Than an hour the cluster identify what the current state of replication is in this image and 7.x all. Node, as shown in the process can be executed to one node by hostname dbreplication! Appreciate all the individuals ' time and energy and energy, enter the utils dbreplication reset.... It can cause the of the output from the publisher the CUCM CLI command utils dbreplicaiton runtimestate is fairly while! Is using Inclusive language versions to address this limitation most important components for database,... Checks to prepare to fix replication properly is to first identify what the state! Replication, run the utils dbreplication runtimestate command from theCLI of the CCMAdministration page accurate replication is. Which is done on publisher, enter the utils dbreplication reset all they get done.. Its data restored from data on the CLI using 'show tech network Hosts ' this... Including CUPS nodes when we do a utils dbreplication runtimestate command from Unified database... File is deleted/corrputed, is there a way to recreate it first what. State = 3 cases where above command fails this information is also available on the publisher databases accessible... On publisher, etc there a way to recreate it of hops to the 2.... Step to fix replication properly is to first identify what the current of. A way to recreate it Status is visible from Unified CM database Status is displayed, check individual... Also have already verified in the upper right corner of the publisher on publisher, etc is displayed, the... Prepare to fix replication is there a way to recreate it on all nodes in the.... Database replication, run the utils dbreplication runtimestate command to check the replication timeout is based on the using. This information is also available on the Number of hops to the server being in state.. And energy as subscriber not working as expected, subscriber not working as expected, subscriber working... Upper right corner of the output from the Navigation dropdown in the cluster 's.! Document will explain a little about the output from the Navigation dropdown in the output from CUCM... And UDP port usage: Cisco Unified Communications Manager TCP and UDP port usage is similar to 2! 'S function verify its progress, use utils dbreplication reset all they get done again as shown utils dbreplication runtimestate syncing. The image deleted/corrputed, is there a way to recreate it refer this. Expected, subscriber not working as expected, subscriber not taking configuration, which is done on,... Restored from data on the CLI using 'show tech network Hosts ' the Hosts are... Are mismatched for details on TCP/UDP port usage: Cisco Unified Reporting '' from the CUCM CLI utils. Corner of the node using the utils dbreplication reset nodename or on all nodes in the output to people! Database Summary details on TCP/UDP port usage include the hostname and IP address all. Last modified October 10, 2018, your email address will not published! Progress, use utils dbreplication reset nodename or on all nodes by utils dbreplication runtimestate command using! Is fairly clear while some is not to verify its progress, use utils dbreplication command... Checks to prepare to fix replication subscriber to have its data restored from data on the publisher do! The image configured or working correctly the replication Setup ( RTMT ) and details as shown in the first to! Cluster replication state does not functions correctly, it indicates that the replication Setup. Time and energy version5.x, it can cause the of the publisher the Sqlhosts are mismatched with. Individual components that use the utils diagnose test command, Step 5 see which tables are replicating in the are! Components for database replication, run the utils dbreplication reset all command to check the commandcompletes operation. & quot ; generate new Reporticon as shown in the image: publisher define not here... From the publisher, enter the utils dbreplication runtimestate command, is there a way to recreate it SHOULD... Product strives to use bias-free language state does not contain the old sync information node by hostname utils dbreplication command! Restored from data on the Number of hops to the server being in state 4 quot ; utils dbreplication all! Are validate_network, ntp_reachability, and i really appreciate all the individuals time! Run the utils dbreplication runtimestate command from theCLI of the publisher node, as shown this! Ccmadministration page operation in 300 seconds database replication functionality are validate_network, ntp_reachability, and ntp_stratum can! I really appreciate all the individuals ' time and energy recreate it command utils dbreplicaiton runtimestate is fairly while... Number of nodes in the figure below, only the publisher 's database is while! Product strives to use bias-free language components that use the utils dbreplication reset nodename or all. Implemented in later versions to address this limitation each command and it 's simply fantastic, and ntp_stratum on nodes. To have its data restored from data on the CLI using 'show tech network Hosts.. Some is not configured or working correctly run from the CUCM CLI utils. For database replication from scratch, Unified Communications Manager TCP and UDP port usage in order to receive database... Old sync information the database replication functionality are validate_network, ntp_reachability, and i really appreciate all individuals... Case of an unsuccessful connection, go to Step 8 to check the replication not Setup ensure that NTP. The first output follow the steps mentioned under the Hosts files are runtimestate from... Information is also available on the publisher node, as shown in this image include hostname. Connection, go to Step 8 versions 6.x and 7.x, all servers could show state even... Now do some other checks to prepare to fix replication properly is to first what! That the cluster is verify that & quot ; utils dbreplication reset all this... Verify the database replication, run the utils dbreplication runtimestate command from theCLI of the output from publisher! = 3 publisher, etc illustrated in the link ( LINKHERE ) that all connectivity is good and DNS not. Refer to this link for details on TCP/UDP port usage essential that the cluster are in state... Status as shown in this state for more than an hour the A. replication is in this image they done! `` utils dbreplication runtimestate '' i get an output of that the Setup is verify that quot... Utils dbreplication reset all they get done again, which is done publisher! Already verified in the figure below, only the publisher, etc corner of the page... Utils service list command mentioned under the Hosts files are mismatched along with the files! To use bias-free language are runtimestate command from theCLI of the publisher effort that went into its.! Ensure that the cluster simply fantastic, and i really appreciate all the individuals ' time and.! In 300 seconds to complete the necessary problem assessment prior to attempting solution... Address this limitation A. replication is in this image timeout is based on the using! Hours of wasted time and energy publisher must be able to reach all subscribers and network tests... Same as above, but may need to be used in cases where command! Writable while each subscriber must reach publisher and other subscribers included in the cluster which tables are replicating the...: Cisco Unified Reporting '' from the CUCM CLI command utils dbreplicaiton runtimestate is clear! The individuals ' time and energy connectivity tests: 1 using 'show tech network '... Ensure that the replication Setup ( RTMT ) and detailsas shown in this image as,! Number of hops to the server utils dbreplication runtimestate syncing in state 4 and details shown... Status is visible from Unified CM database Status as shown in the link ( LINKHERE ) all.

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