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https://issues.apache.org/jira/browse/CASSANDRA-15850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-15850:
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Change Category: Performance
Complexity: Normal
Component/s: Local/Startup and Shutdown
Status: Open (was: Triage Needed)
> Delay between Gossip settle and CQL port opening during the startup
> -------------------------------------------------------------------
>
> Key: CASSANDRA-15850
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15850
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Startup and Shutdown
> Reporter: Jai Bheemsen Rao Dhanwada
> Priority: Normal
>
> Hello,
> When I am bootstrapping/restarting a Cassandra Node, there is a delay between
> gossip settle and CQL port opening. Can someone please explain me where this
> delay is configured and can this be changed? I don't see any information in
> the logs
> In my case if you see there is a ~3 minutes delay and this increases if I
> increase the #of tables and #of nodes and DC.
> {code:java}
> INFO [main] 2020-05-31 23:51:07,554 Gossiper.java:1692 - Waiting for gossip
> to settle...
> INFO [main] 2020-05-31 23:51:15,555 Gossiper.java:1723 - No gossip backlog;
> proceeding
> INFO [main] 2020-05-31 23:54:06,867 NativeTransportService.java:70 - Netty
> using native Epoll event loop
> INFO [main] 2020-05-31 23:54:06,913 Server.java:155 - Using Netty Version:
> [netty-buffer=netty-buffer-4.0.44.Final.452812a,
> netty-codec=netty-codec-4.0.44.Final.452812a,
> netty-codec-haproxy=netty-codec-haproxy-4.0.44.Final.452812a,
> netty-codec-http=netty-codec-http-4.0.44.Final.452812a,
> netty-codec-socks=netty-codec-socks-4.0.44.Final.452812a,
> netty-common=netty-common-4.0.44.Final.452812a,
> netty-handler=netty-handler-4.0.44.Final.452812a,
> netty-tcnative=netty-tcnative-1.1.33.Fork26.142ecbb,
> netty-transport=netty-transport-4.0.44.Final.452812a,
> netty-transport-native-epoll=netty-transport-native-epoll-4.0.44.Final.452812a,
> netty-transport-rxtx=netty-transport-rxtx-4.0.44.Final.452812a,
> netty-transport-sctp=netty-transport-sctp-4.0.44.Final.452812a,
> netty-transport-udt=netty-transport-udt-4.0.44.Final.452812a]
> INFO [main] 2020-05-31 23:54:06,913 Server.java:156 - Starting listening for
> CQL clients on /x.x.x.x:9042 (encrypted)...
> {code}
> Also during this 3-10 minutes delay, I see
> {noformat}
> nodetool compactionstats
> {noformat}
> command is hung and never respond, until the CQL port is up and running.
> Can someone please help me understand the delay here?
> Cassandra Version: 3.11.3
> The issue can be easily reproducible with around 300 Tables and 100 nodes in
> a cluster.
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