Outage in UC San Diego

Dropped Connections sdsc->aws

Minor
November 02, 2025 - Started 3 days ago
Official incident page

Incident Report

We received a case CS2762501 from Lance (who I believe is Scripps IT) explaining that there appears to be continuous dropped connections between the hosts in SDSC and on AWS. "These alerts from our Zabbix monitoring server (status.ldl.ucsd.edu) have been ongoing from around midnight UTC and have been self-correcting within a minute or two but occur multiple times per hour. Services disruptions are observed on apache http/s, mysql and zabbix ports. Connections to/from machines within SDSC are dropping as well as SDSC to/from AWS. Machines in question carry the *.ldl.ucsd.edu domain. the outage was first observed just after midnight local time, 0842 UTC, here is the first report timestamp: Problem started at 08:42:44 on 2025.11.02 Problem name: Apache: Service is down Host: doc-gdpsio Severity: Average Operational data: Down (0) Original problem ID: 6151149" We're unable to check the machines ourselves.

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INVESTIGATING 3 days ago - at 11/02/2025 10:03PM

We received a case CS2762501 from Lance (who I believe is Scripps IT) explaining that there appears to be continuous dropped connections between the hosts in SDSC and on AWS.

"These alerts from our Zabbix monitoring server (status.ldl.ucsd.edu) have been ongoing from around midnight UTC and have been self-correcting within a minute or two but occur multiple times per hour. Services disruptions are observed on apache http/s, mysql and zabbix ports.

Connections to/from machines within SDSC are dropping as well as SDSC to/from AWS. Machines in question carry the *.ldl.ucsd.edu domain.

the outage was first observed just after midnight local time, 0842 UTC, here is the first report timestamp:
Problem started at 08:42:44 on 2025.11.02
Problem name: Apache: Service is down
Host: doc-gdpsio
Severity: Average
Operational data: Down (0)
Original problem ID: 6151149"

We're unable to check the machines ourselves.

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