Problem Note 64771: The sas-stream microservice (sas-viya-stream-evdm-default) stops running and generates an error
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Under certain conditions, the sas-stream microservice (sas-viya-stream-evdm-default) might stop running. When this problem occurs, the error messages that are shown below are written to the sas-stream-evdm_year-month-day-hour-minute-second.log file. This file resides in the /opt/sas/viya/config/var/log/stream-evdm/default/ directory on the host that is designated as the [Operations] target in the Ansible inventory file (inventory.ini).
panic: interface conversion: interface {} is nil, not string
gitlab.sas.com/emi/collect/vendor/gitlab.sas.com/emi/common/event/parse.unJavaEv
ent(0xc4216b7140, 0x946dbd, 0x19, 0x864601)
/var/lib/jenkins/workspace/emi_collect_deploy/gopath/src/gitlab.sas.com/emi/col
lect/vendor/gitlab.sas.com/emi/common/event/parse/parser.go:243 +0xa46
gitlab.sas.com/emi/collect/vendor/gitlab.sas.com/emi/common/event/parse.parseJav
aEvent(0xc4240d4000, 0x1c1d, 0x2000, 0x95d610, 0x454f50, 0xc424845a90, 0x42dcee)
/var/lib/jenkins/workspace/emi_collect_deploy/gopath/src/gitlab.sas.com/emi/col
lect/vendor/gitlab.sas.com/emi/common/event/parse/parser.go:94 +0x209
gitlab.sas.com/emi/collect/vendor/gitlab.sas.com/emi/common/event/parse.Event(0x
c4240d4000, 0x1c1d, 0x2000, 0x0, 0x0, 0x0)
/var/lib/jenkins/workspace/emi_collect_deploy/gopath/src/gitlab.sas.com/emi/col
lect/vendor/gitlab.sas.com/emi/common/event/parse/parser.go:26 +0x83
gitlab.sas.com/emi/collect/vendor/gitlab.sas.com/emi/common/event/consumer.(*AMQ
PConsumer).Receive(0xc422bd1030, 0xc42435c540, 0xc42435c5a0)
/var/lib/jenkins/workspace/emi_collect_deploy/gopath/src/gitlab.sas.com/emi/col
lect/vendor/gitlab.sas.com/emi/common/event/consumer/amqpConsumer.go:238 +0x284
created by gitlab.sas.com/emi/collect/stream.consume
/var/lib/jenkins/workspace/emi_collect_deploy/gopath/src/gitlab.sas.com/emi/col
lect/stream/subscribe.go:126 +0x36e
The following symptoms are present when this issue occurs:
- The sas-viya-stream-evdm-default microservice stops running.
- The sas-viya-stream-evdm-default microservice displays the errors that are shown above in the sas-stream-evdm_year-month-day-hour-minute-second.log file.
- In SAS® Environment Manager, the sas-viya-stream-evdm-default microservice shows a red status on the dashboard.
- In SAS Environment Manager, the Machines tab does not show CPU and memory usage.
- If you submit the command /opt/sas/viya/home/bin/sas-ops validate, validation of the sas-stream microservice fails.
The sas-stream microservice reads metric, log, and notification events from RabbitMQ exchanges and writes them to tab-separated values (TSV) files in the data mart. During the time period that sas-viya-stream-evdm-default is stopped, no metric, notification, or log data is collected. When you restart sas-viya-stream-evdm-default, only new metric, notification, and log data (generated after the restart) are collected.
For more information about sas-stream, see SAS® Viya® 3.4 Administration: Operations Infrastructure.
Click the Hot Fix tab in this note for a link to instructions about accessing and applying the software update.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Viya | Microsoft Windows Server 2012 R2 Datacenter | 3.3 | |||
| Microsoft Windows Server 2012 R2 Std | 3.3 | |||||
| Microsoft Windows Server 2016 | 3.3 | |||||
| Linux for x64 | 3.3 | |||||
Viya on Linux: An update for this issue is available for SAS Viya 3.4. For instructions on how to access and apply software updates, see the Updating Your SAS Viya software section in the SAS Viya 3.4 for Linux Deployment Guide at
http://documentation.sas.com/?softwareId=administration&softwareVersion=3.4&softwareContextId=softwareUpdatesViya on Windows: An update for this issue is available for SAS Viya 3.4. For instructions on how to access and apply software updates, see the Updating Your SAS Viya software section in the SAS Viya 3.4 for Windows Deployment Guide at
http://documentation.sas.com/?softwareId=administration&softwareVersion=3.4&softwareContextId=softwareUpdatesWinAn update for this issue is available for SAS Viya 3.4. For instructions on how to access and apply software updates, see the Updating Your SAS Viya software section in the SAS Viya 3.4 for Linux Deployment Guide at
http://documentation.sas.com/?softwareId=administration&softwareVersion=3.4&softwareContextId=softwareUpdates| Type: | Problem Note |
| Priority: | medium |
| Date Modified: | 2019-10-08 15:09:03 |
| Date Created: | 2019-09-13 15:27:55 |