When the Online event database becomes full, FortiSIEM will move the events to the Archive Event database. Although the process worked mostly great, it seemed to us the automatic moving isnt working 100% stable yet and there are sometimes errors occurring. To switch your ClickHouse database to EventDB, take the following steps. Custom Org Assignment - Select to create, edit or delete a custom organization index. If the available space is still below the value of, If the available space is still below the. Configure storage for EventDB by taking the following steps. When the Online Event database size in GB falls below the value of online_low_space_action_threshold_GB, events are deleted until the available size in GB goes slightly above the online_low_space_action_threshold_GB value. When using lsblk to find the disk name, please note that the path will be /dev/. Otherwise, they are purged. See Custom Organization Index for Elasticsearch for more information.

The cluster administrator have an option to specify a default StorageClass. Note:You must click Save in step 5 in order for the Real Time Archive setting to take effect. You can specify the storage policy in the CREATE TABLE statement to start storing data on the S3-backed disk. Depending on whether you use Native Elasticsearch, AWSOpenSearch (Previously known as AWSElasticsearch), or ElasticCloud, Elasticsearch is installed using Hot (required), Warm (optional), and Cold (optional, availability depends on Elasticsearch type)nodes and Index Lifecycle Management (ILM) (availability depends on Elasticsearch type). There are two parameters in the phoenix_config.txt file on the Supervisor node that determine when events are deleted.

From the Group drop-down list, select a group. Here is an example configuration file using the local MinIO endpoint we created using Docker. IP or Host name of the Spark cluster Master node. As a bonus, the migration happens local to the node and we could keep the impact on other cluster members close to zero. Policies can be used to enforce which types of event data remain in the Archive event database. Luckily for us, with version 19.15, Clickhouse introduced multi-volume storage which also allows for easy migration of data to new disks. At the Org Storage field, click theEdit button. Let's create encrypted volume based on the same gp2 volume. Pay attention to .spec.template.spec.containers.volumeMounts: As we have discussed in AWS-specific section, AWS provides gp2 volumes as default media. After upgrading Clickhouse from a version prior to 19.15, there are some new concepts how the storage is organized. Navigate to ADMIN> Setup >Storage > Online. Meaning we would need to do schema migrations to address the change not only on our own clusters, but also would need to ship these to our self-hosted customers or diverge from our goal to have only one source of truth for both worlds. Now, lets create a new table and download the data from MinIO. For EventDB Local Disk configuration, take the following steps. The natural thought would be to create a new storage policy and adjust all necessary tables to use it. For more information, see Viewing Online Event Data Usage. From the Organization drop-down list, select the organization. | Terms of Service | Privacy Policy, Configuring Online Event Database on Local Disk, Configuring Online Event Database on Elasticsearch, Configuring Online Event Database on ClickHouse, Configuring Archive Event Database on NFS, Configuring Archive Event Database on HDFS, Custom Organization Index for Elasticsearch, How Space-Based and Policy-Based Retention Work Together, Setting Up Space-Based/Age-Based Retention, AWS OpenSearch (Previously known as AWSElasticsearch) Using REST API. They appear under the phDataPurger section: - archive_low_space_action_threshold_GB (default 10GB), - archive_low_space_warning_threshold_GB (default 20GB). If Cold nodes are defined and the Cold node cluster storage capacity falls below lower threshold, then: if Archive is defined, then they are archived, Select and delete the existing Workers from. You must have at least one Tier 1 disk. This query will download data from MinIO into the new table. Log into the GUI as a full admin user and change the storage to ClickHouse by taking the following steps. When Cold Node disk free space reaches the Low Threshold value, events are moved to Archive or purged (if Archive is not defined), until Cold disk free space reaches High Threshold. For 2000G, run the following additional command. Add a new disk to the current disk controller. PersistentVolumeClaim must exist in the same namespace as the pod using the claim. In these cases restarting Clickhouse normally solved the problem if we catched it early on. In daily interactive queries, 95% of queries access data in recent days, and the remaining 5% run some long-term batch tasks. Note: This command will also stop all events from coming into the Supervisor. Stop all the processes on the Supervisor by running the following command. You can see that a storage policy with multiple disks has been added at this time, Added by DuFF on Wed, 09 Mar 2022 03:46:19 +0200, Formulate storage policies in the configuration file and organize multiple disks through volume labels, When creating a table, use SETTINGS storage_policy = '' to specify the storage policy for the table, The storage capacity can be directly expanded by adding disks, When multithreading accesses multiple different disks in parallel, it can improve the reading and writing speed, Since there are fewer data parts on each disk, the loading speed of the table can be accelerated. Note that this time you must omit the / from the end of your endpoint path for proper syntax. Wait for JavaQuerySever process to start up. else, if Archive is defined then they are archived. You can bring back the old data if needed (See Step 7). Stop all the processes on Supervisor by running the following command. The following sections describe how to set up the Online database on Elasticsearch: There are three options for setting up the database: Use this option when you want FortiSIEM to use the REST API Client to communicate with Elasticsearch. Query:Select if the URLendpoint will be used to query Elasticsearch.Note: Ingest and Query can both be selected for an endpoint URL.

IP or Host name of HDFS Name node. lvremove /dev/mapper/FSIEM2000Gphx_hotdata : y. Delete old ClickHouse data by taking the following steps. Use the command fdisk -l or lsblk from the CLI to find the disk names. They appear under the phDataPurger section. In this release, the following combinations are supported: Database Storage Efficiency, Query Performance, Ingestion Speed Comparison. Click Save.Note:Saving here only save the custom Elasticsearch group. A Pod refers "volumes: name" via "volumeMounts: name" in Pod or Pod Template as: This "volume" definition can either be the final object description of different types, such as: In his article ClickHouse and S3 Compatible Object Storage, he provided steps to use AWS S3 with ClickHouses disk storage system and the S3 table function. If Archive is defined, then the events are archived. When the HDFS database becomes full, events have to be deleted to make room for new events. Navigate to ADMIN>Setup >Storage > Online. Step 1: Temporarily Change the Event Storage Type from EventDB on NFS to EventDB on Local. Copyright 2022 Fortinet, Inc. All Rights Reserved.

We can use kubectl to check for StorageClass objects. For example, after running a performance benchmark loading a dataset containing almost 200 million rows (142 GB), the MinIO bucket showed a performance improvement of nearly 40% over the AWS bucket! Through stepped multi-layer storage, we can put the latest hot data on high-performance media, such as SSD, and the old historical data on cheap mechanical hard disk. This feature is available from ADMIN>Setup >Storage >Online with Elasticsearch selected as the Event Database, and Custom Org Assignment selected for Org Storage. For more information, see Viewing Archive Data. In the minio-client.yml file, you may notice that the entrypoint definition will connect the client to the minio service and create the bucket root. and you plan to use FortiSIEM EventDB. else if Warm nodes are not defined, but Cold nodes are defined, the events are moved to Cold nodes. in hardware Appliances), then copy out events from FortiSIEM EventDB to a remote location. Ingest: Select if the URL endpoint will be used to handle pipeline processing. Log in to the FortiSIEM GUI and go to ADMIN > Settings > Online Settings. However, it is possible to switch to a different storage type. For more information on configuring thresholds, see Setting Elasticsearch Retention Threshold. From the Event Database drop-down list, select EventDB Local Disk. After version 19.15, data can be saved in different storage devices, and data can be automatically moved between different devices. # lvremove /dev/mapper/FSIEM2000G-phx_eventdbcache: y. Note - This is a CPU, I/O, and memory-intensive operation. Once again, make sure to replace the bucket endpoint and credentials with your own bucket endpoint and credentials if you are using a remote MinIO bucket endpoint. Use this option when you have FortiSIEM deployed in AWS Cloud and you want to use AWS OpenSearch (Previously known as AWSElasticsearch). influxdb The following sections describe how to configure the Online database on NFS. Similarly, when the Archive storage is nearly full, events are purged to make room for new events from Online storage. (Optional) Import old events. Upon arrival in FortiSIEM, events are stored in the Online event database. This space-based retention is hardcoded, and does not need to be set up. Select one of the following from the drop-down list: All Orgs in One Index - Select to create one index for all organizations. So we decided to go for a two disk setup with 2.5TB per disk. Policies can be used to enforce which types of event data stays in the Online event database. In this configuration file, we have one policy that includes a single volume with a single disk configured to use a MinIO bucket endpoint. With just this change alone, Clickhouse would know the disks after a restart, but of course not use them yet, as they are not part of a volume and storage policy yet. Navigate to ADMIN>Setup >Storage >Online. This can be Space-based or Policy-based. [Required]Provide your AWSaccess key id. Storage class name - my-storage-class in this example - is specific for each k8s installation and has to be provided (announced to applications(users)) by cluster administrator. When Online database becomes full, then events have to be deleted to make room for new events. From the Event Database drop-down list, select ClickHouse. # /opt/phoenix/bin/phClickHouseImport --src [Source Dir] --starttime [Start Time] --endtime [End Time] --host [IP Address of ClickHouse - default 127.0.0.1] --orgid [Organization ID (0 4294967295). Originally published on the Altinity Blog on June 17, 2021. For VMs, proceed with Step 9, then continue. Navigate to ADMIN>Setup > Storage > Online. This can be Space-based or Policy-based. This is done until storage capacity exceeds the upper threshold. Edit and remove any mount entries in /etc/fstab that relates to ClickHouse. Enter the following parameters : First, Policy-based retention policies are applied. Unmount data by taking the following step depending on whether you are using a VM (hot and/or warm disk path) or hardware (2000F, 2000G, 3500G). In some cases, we saw the following error, although there was no obvious shortage on neither disk nor memory. In the initial state, the data storage directory specified in the clickhouse configuration file is: Start the client and view the disk directory perceived by the current clickhouse: Create a corresponding directory for storing clickhouse data in each disk, and modify the directory owner to click house user, Modify the service configuration file / server / clickhouse.etc/clickhouse XML add the above disks, At this point, check the disk directory perceived by clickhouse. Change the Low and High settings, as needed. Pods use PersistentVolumeClaim as volume. In this article, we will explain how to integrate MinIO with ClickHouse. Stay tuned for the next update in this blog series, in which we will compare the performance of MinIO and AWS S3 on the cloud using some of our standard benchmarking datasets. Eventually, when there are new bigger parts left to move, you can adjust the storage policy to have a move_factor of 1.0 and a max_data_part_size_bytes in the kilobyte range to make Clickhouse move the remaining data after a restart. AWS-based cluster with data replication and Persistent Volumes. You must restart phDataPurger module to pick up your changes. To do this, run the following command from FortiSIEM. Edit /etc/fstab and remove all /data entries for EventDB. If the docker-compose environment starts correctly, you will see messages indicating that the clickhouse1, clickhouse2, clickhouse3, minio-client, and minio services are now running. or can refer to PersistentVolumeClaim as: where minimal PersistentVolumeClaim can be specified as following: Pay attention, that there is no storageClassName specified - meaning this PersistentVolumeClaim will claim PersistentVolume of explicitly specified default StorageClass. In the early days, clickhouse only supported a single storage device. You can change these parameters to suit your environment and they will be preserved after upgrade. Examples are available in examples folder: k8s cluster administrator provision storage to applications (users) via PersistentVolume objects. TCP port number for FortiSIEM to communicate to HDFS Name node. This is set by configuring the Archive Threshold fields in the GUI at ADMIN > Settings > Database > Online Settings.

Make sure phMonitor process is running. To add a custom Elasticsearch group, take the following steps. This bucket can be found by listing all buckets. For those of you who are not using ClickHouse in docker-compose, you can add this storage configuration file, and all other configuration files, in your /etc/clickhouse-server/config.d directory. We will use a docker-compose cluster of ClickHouse instances, a Docker container running Apache Zookeeper to manage our ClickHouse instances, and a Docker container running MinIO for this example. This check is done hourly. Click +to add a row for another disk path, and - to remove any rows.During FortiSIEM installation, you can add one or more 'Local' data disk of appropriate size as additional disks, i.e., 5th disk (hot), 6th disk (warm). Recently, my colleague Yoann blogged about our efforts to reduce the storage footprint of our Clickhouse cluster by using the LowCardinality data type. Now that you have connected to the ClickHouse client, the following steps will be the same for using a ClickHouse node in the docker-compose cluster and using ClickHouse running on your local machine. You signed in with another tab or window. You can also configure multiple disks and policies in their respective sections. It is strongly recommended you confirm that the test works, in step 4 before saving. Log into FortiSIEM Supervisor GUIas a full admin user. If Cold node is not defined, events are moved to Archive or purged (if Archive is not defined) until Warm disk free space reaches High Threshold. Verify events are coming in by running Adhoc query in ANALYTICS. First, we will check that we can use the minio-client service. The user can define retention policies for this database. Note: Importing events from ClickHouse to Elasticsearch is currently not supported.

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