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https://issues.apache.org/jira/browse/CASSANDRA-19187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796891#comment-17796891
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Brandon Williams edited comment on CASSANDRA-19187 at 12/14/23 8:06 PM:
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[~curlylrt] that 4.0 link is for another ticket. I used the one you originally
linked [here|https://github.com/apache/cassandra/pull/2978].
||Branch||CI||
|[4.0|https://github.com/driftx/cassandra/tree/CASSANDRA-19187-4.0]|[j8|https://app.circleci.com/pipelines/github/driftx/cassandra/1416/workflows/2cafb3ad-057c-4fa4-a638-f8877912c60d],
[j11|https://app.circleci.com/pipelines/github/driftx/cassandra/1416/workflows/d4e03537-c49e-4e2d-8910-156d23732321]|
|[4.1|https://github.com/driftx/cassandra/tree/CASSANDRA-19187-4.1]|[j8|https://app.circleci.com/pipelines/github/driftx/cassandra/1414/workflows/a019c2cd-64b5-4b57-a554-5881de6fd3c7],
[j11|https://app.circleci.com/pipelines/github/driftx/cassandra/1414/workflows/11889dfa-7d86-4fb7-a713-874dfc3a0552]|
|[5.0|https://github.com/driftx/cassandra/tree/CASSANDRA-19187-5.0]|[j11|https://app.circleci.com/pipelines/github/driftx/cassandra/1415/workflows/821eb0bd-9af4-48a9-a50e-a9e1aab75a4e],
[j17|https://app.circleci.com/pipelines/github/driftx/cassandra/1415/workflows/54d783aa-3fca-4531-9a80-6ab8b47472b2]|
was (Author: brandon.williams):
[~curlylrt] that 4.0 link is for another ticket.
> nodetool assassinate may cause thread serialization for that node
> -----------------------------------------------------------------
>
> Key: CASSANDRA-19187
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19187
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Membership
> Reporter: Runtian Liu
> Assignee: Runtian Liu
> Priority: Normal
> Fix For: 4.0.x, 4.1.x, 5.0.x
>
>
> When assassinate an ip address that is not in the gossip map, a "corrupted"
> entry will be inserted into the gossip map.
> [(1)|https://github.com/apache/cassandra/blob/cassandra-4.0/src/java/org/apache/cassandra/gms/Gossiper.java#L810]
> For example, if we do "nodetool assassinate 10.1.1.1"
> we will get an entry like below by running "nodetool gossipinfo":
>
> {code:java}
> /10.1.1.1
> generation:1702006511
> heartbeat:9999
> STATUS:209516:LEFT,-8393921141401589197,1702265651923
> STATUS_WITH_PORT:209515:LEFT,-8393921141401589197,1702265651923
> TOKENS: not present {code}
>
> This entry in endpointStateMap will cause issue for
> [isUpgradingFromVersionLowerThan|https://github.com/apache/cassandra/blob/cassandra-4.0/src/java/org/apache/cassandra/gms/Gossiper.java#L2284]
> function. Because the
> [upgradeFromVersionSupplier|https://github.com/apache/cassandra/blob/cassandra-4.0/src/java/org/apache/cassandra/gms/Gossiper.java#L191]
> supplier will always set the
> [allHostsHaveKnownVersion|https://github.com/apache/cassandra/blob/cassandra-4.0/src/java/org/apache/cassandra/gms/Gossiper.java#L216]
> flag to false so no memoized value will be returned. The "get" function will
> always require a lock from this
> [line|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/utils/ExpiringMemoizingSupplier.java#L66].
> If application is using "fetchAll", the native-transport-requests thread will
> hit this
> [line|https://github.com/apache/cassandra/blob/cassandra-4.0/src/java/org/apache/cassandra/db/filter/ColumnFilter.java#L574].
> This means all the native-transport-requests thread is serialized, also, the
> lock is shared by GossipStage threads. It means if a node in a cluster with
> the corrupted gossip map is restart, the node will run into this problem.
> To fix the issue,
> # Why we want to add a dummy entry for nodetool assassinate if the endpoint
> is not in the map anymore. Should we do nothing or throw exception if the
> node is not in the gossip map anymore?
> # Before checking if a version is null, we should make sure the node is not
> a dead node. A decommissioned node, a left node should not be considered part
> of the cluster anymore when calculating "upgradeInProgressPossible"
>
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