can change these parameters to

You can change these parameters to suit your environment and they will be preserved after upgrade. I expect more interesting features to come around this, as has already been the case with TTL moves introduced in a recent version of Clickhouse. From the Event Database drop-down list, select Elasticsearch. Generally, in each policy, you can define multiple volumes, which is especially useful when moving data between volumes with TTL statements. By adding the max_data_part_size_bytes to the default volume, we make sure Clickhouse doesnt create new parts that are bigger than 50MB, these will already be created on the new disks. With this information in place, how can we now manage to move our existing data of the under-utilized disks onto a new setup? Click - to remove any existing URLfields. 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. However, this is not convenient and sometimes we'd like to just use any available storage, without bothering to know what storage classes are available in this k8s installation. Once it was back up it picked up where it left. You must restart phDataPurger module to pick up your changes. In these cases restarting Clickhouse normally solved the problem if we catched it early on. From the Organization drop-down list, select the organization. Ingest: Select if the URL endpoint will be used to handle pipeline processing. The storage configuration is now ready to be used to store table data.

# echo "- - -" > /sys/class/scsi_host/host0/scan, # echo "- - -" > /sys/class/scsi_host/host1/scan, # echo "- - -" > /sys/class/scsi_host/host2/scan. When the Archive disk space reaches the low threshold (archive_low_space_action_threshold_GB) value, events are purged until the Archive disk space reaches the high threshold (online_low_space_warning_threshold_GB) value. For example, if there is only the Hot tier, when only 10% space is available, the oldest data will be purged until at least 20% disk space is freed up. Now you can connect to one of the ClickHouse nodes or your local ClickHouse instance. With these capabilities in place, growing storage in the future has become as easy as adding a new disk or volume to your storage policy which is great and improves the operability of Clickhouse a lot. For 2000G, run the following additional commands. If you are running a FortiSIEM Cluster using NFS and want to change the IP address of the NFS Server, then take the following steps. You can have 2 Tiers of disks with multiple disks in each Tier. Instructions to connect to the docker-compose node are provided below. In our case we only had a TinyLog table that holds our migration state which luckily doesnt get any live data: Adjust your server.xml to remove the old disk and make one of your new disks the default disk (holding metadata, tmp, etc.). If you want to change these values, then change them on the Supervisor and restart the phDataManager and phDataPurger modules.

Navigate to ADMIN>Setup >Storage > Online.

For best performance, try to write as few retention policies as possible. [Required]Provide your AWSaccess key id.

This is set by Archive Thresholds defined in the GUI. Note that this time you must omit the / from the end of your endpoint path for proper syntax. When the Archive Event database size in GB falls below the value of archive_low_space_action_threshold_GB, events are purged until the available size in GB goes slightly above the value set for archive_low_space_action_threshold_GB. Follow these steps to migrate events from EventDB to ClickHouse. 2 tiers include Hot and Warm tiers. - online_low_space_action_threshold_GB (default 10GB), - online_low_space_warning_threshold_GB (default 20GB). To do this, run the following command from FortiSIEM. else if Warm nodes are not defined, but Cold nodes are defined, the events are moved to Cold nodes. From the Event Database drop-down list, select ClickHouse. MinIO can also be accessed directly using ClickHouses S3 table function with the following syntax. The natural thought would be to create a new storage policy and adjust all necessary tables to use it. It is strongly recommended you confirm that the test works, in step 4 before saving. From the Group drop-down list, select a group. They appear under the phDataPurger section: - archive_low_space_action_threshold_GB (default 10GB), - archive_low_space_warning_threshold_GB (default 20GB). When the Hot node cluster storage capacity falls below the lower threshold or meets the time age duration, then: if Warm nodes are defined, the events are moved to Warm nodes. You must have at least one Tier 1 disk. To achieve this, we we enhance the default storage policy that clickhouse created as follows: We leave the default volume which points to our old data mount in there but add a second volume called data which consists of our newly added disks. In addition, by storing data in multiple storage devices to expand the storage capacity of the server, clickhouse can also automatically move data between different storage devices. The following sections describe how to set up the Archive database on HDFS: HDFS provides a more scalable event archive option - both in terms of performance and storage. This section provides details for the various storage options.

In the Disk Path field, select the disk path. Recently, my colleague Yoann blogged about our efforts to reduce the storage footprint of our Clickhouse cluster by using the LowCardinality data type. Log into the FortiSIEMSupervisor GUI as a full admin user.

Event destination can be one of the following: When Warm Node disk free space reaches the Low Threshold value, events are moved to Cold node. There are two parameters in the phoenix_config.txt file on the Supervisor node that determine when events are deleted. 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. Stop all the processes on Supervisor by running the following command. Change the Low and High settings, as needed. Step 1: Temporarily Change the Event Storage Type from EventDB on NFS to EventDB on Local. Policies can be used to enforce which types of event data remains in the Online event database. This is done until storage capacity exceeds the upper threshold. If you want to change these values, then change them on the Supervisor and restart phDataManager and phDataPurger modules. When Hot Node disk free space reaches the Low Threshold value, events are moved until the Hot Node disk free space reaches the High Threshold value. To switch your ClickHouse database to Elasticsearch, take the following steps. The cluster administrator have an option to specify a default StorageClass. Enter the following parameters : First, Policy-based retention policies are applied. The following storage change cases need special considerations: Assuming you are running FortiSIEM EventDB on a single node deployment (e.g. This can be Space-based or Policy-based.

So Clickhouse will start to move data away from old disk until it has 97% of free space. Similarly, the user can define retention policies for the Archive Event database. # lvremove /dev/mapper/FSIEM2000G-phx_eventdbcache: y. Remove the data by running the following command. The following sections describe how to set up the Archive database on NFS: When the Archive database becomes full, then events must be deleted to make room for new events. Examples are available in examples folder: k8s cluster administrator provision storage to applications (users) via PersistentVolume objects. 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). We have included this storage configuration file in the configs directory, and it will be ready to use when you start the docker-compose environment.

When present, the user can create a PersistentVolumeClaim having no storageClassName specified, simplifying the process and reducing required knowledge of the underlying storage provider. lvremove /dev/mapper/FSIEM2000Gphx_hotdata : y. Delete old ClickHouse data by taking the following steps. Creating Offline (Archive) Retention Policy. 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. If Archive is defined, then the events are archived. Even if it would be possible, for our scenario this would not be ideal, as we use the same foundation between our Saas platform and our self-hosted installations. Note:You must click Save in step 5 in order for the Real Time Archive setting to take effect. If multiple tiers are used, the disks will be denoted by a number: Setup Elasticsearch as online database by taking the following steps. You also need an access_key_id and secret_access_key, which correspond to the bucket. Verify events are coming in by running Adhoc query in ANALYTICS. Note that two tables using the same storage policy will not share data. You may also use it as one of ClickHouses storage disks with a similar configuration as with AWS S3. Step 3: Change the Event Storage Type Back to EventDB on NFS. 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. Volume of type emptyDir. Pods use PersistentVolumeClaim as volume. Stop all the processes on Supervisor by running the following command. SSH to the Supervisor and stop FortiSIEM processes by running: Attach new local disk to the Supervisor. Configure the rest of the fields depending on the ESService Type you selected. This is a standard system administrator operation. This query will upload data to MinIO from the table we created earlier. Otherwise, they are purged. ), phClickHouseImport --src /test/sample --starttime "2022-01-27 10:10:00" --endtime "2022-02-01 11:10:00", [root@SP-191 mnt]# /opt/phoenix/bin/phClickHouseImport --src /mnt/eventdb/ --starttime "2022-01-27 10:10:00" --endtime "2022-03-9 22:10:00", [ ] 3% 3/32 [283420]. phtools -stop all. Policies can be used to enforce which types of event data remain in the Archive event database. The user can define retention policies for this database. Specify special StorageClass. Example on how this persistentVolumeClaim named my-pvc can be used in Pod spec: StatefulSet shortcuts the way, jumping from volumeMounts directly to volumeClaimTemplates, skipping volume. Now you are ready to insert data into the table just like any other table. Log into FortiSIEM Supervisor GUIas a full admin user. From the Assign Organizations to Groups window, you can create, edit, or delete existing custom Elasticsearch groups.

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can change these parameters to