Which of the following statements describe a Search Head Cluster (SHC) captain? (Select all that apply.)
Which of the following statements describe a Search Head Cluster (SHC) captain? (Select all that apply.)
The SHC captain is responsible for a variety of roles within the search head cluster. It acts as the job scheduler for the entire SHC, ensuring that jobs are assigned to members based on their current load. Additionally, the captain manages alert action suppressions, which includes handling the suppression of alerts, also known as throttling. The SHC captain does not synchronize the member list with the KV store primary, as the search head cluster does not coordinate replication of KV store data. Furthermore, the SHC captain does not replicate the knowledge bundle to search peers (indexers); rather, it replicates it to other search heads within the cluster.
A,B,D https://docs.splunk.com/Documentation/Splunk/7.3.2/DistSearch/SHCarchitecture#role_of_the_captain
Correct: KV store can reside on a search head cluster. However, the search head cluster does not coordinate replication of KV store data or otherwise involve itself in the operation of KV store. For information on KV store, see About KV store in the Admin Manual.
Actually yes.. page 219 of Cluster Admin pdf is correct too. it says: SHC captain and KV store primary synchronize their member lust everytime there is a status change -> so must be all ABCD than.
ABCD This is the way
can't believe no one noticed this lol..D is definitely wrong, because the term "search peers" is another name for indexers and a captain doesn't replicate to search peers, it replicates to search head cluster members
ABCD ABD: https://docs.splunk.com/Documentation/Splunk/9.0.1/DistSearch/SHCarchitecture#Search_head_cluster_captain C: https://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/ResyncKVstore#Resync_stale_KV_store_members
This is the way.
Answers A, B and D https://docs.splunk.com/Documentation/Splunk/latest/DistSearch/SHCarchitecture#Role_of_the_captain In the last topic ("Search head clustering and KV store") we can read: KV store can reside on a search head cluster. However, the search head cluster does not coordinate replication of KV store data or otherwise involve itself in the operation of KV store. For information on KV store, see About KV store in the Admin Manual.
ABCD: c: Slide219 (cluster) SHC captain and KV store primary synchronize their member lust everytime there is a status change The captain also coordinates activities among all cluster members. Its responsibilities include: Scheduling jobs. It assigns jobs to members, including itself, based on relative current loads. Coordinating alerts and alert suppressions across the cluster. The captain tracks each alert but the member running an initiating search fires it. Pushing the knowledge bundle to search peers. Coordinating artifact replication. The captain ensures that search artifacts get replicated as necessary to fulfill the replication factor. See Choose the replication factor for the search head cluster. Replicating configuration updates. The captain replicates any runtime changes to knowledge objects on one cluster member to all other members. This includes, for example, changes or additions to saved searches, lookup tables, and dashboards. See Configuration updates that the cluster replicates.
I think ABC is correct , D is not correct as it pushes the knowledge bundles to search peers
It's slippery terminology. In the pdf they say replicate, in the docs push.
>ABCD is correct
ABCD C: Slide219 (cluster) SHC captain and KV store primary synchronize their member lust everytime there is a status change The captain also coordinates activities among all cluster members D:slide186 cluster: Bundle replication to search peers happens only from the captain
Answer is A, B & C
Option D is incorrect because the SHC captain is not responsible for replicating the SHC's knowledge bundle to the search peers. The SHC captain is responsible for managing the configuration and state of the SHC, including distributing the knowledge bundle to the other search heads in the cluster. However, it is the search peers that perform the actual searching against the indexed data, and they do not rely on the SHC captain to replicate the knowledge bundle.
Is ABCD
Cannot select all options but all are valid here (ABCD).
Seems like C is wrong, per the comment that SpTester referenced, and the captain doesn't do anything with the peers, so AB.
ABD The KV store and search head clustering operate pretty much independently. The KV store captain is elected by its peers, just like the search head captain, although it is different code that runs those two elections. It's possible that one node would end up hosting both captains, but not necessary. The potential warning you point out is not a warning, but rather information about how kv store handles reads and writes. And where exactly do you think the docs are in conflict? KV store runs on a search head cluster, but search head clustering doesn't interact with the KV store.