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Release Notes - KX Insights Microservices 1.2.1

KX Insights Microservices 1.2.1 release.

Release Date


Storage Manager

[FIX] An upgrade issue affecting migrations from KX Insights Microservices 1.1 using object storage tiers has been fixed.

[FIX] A problem where underlying system calls could cause Storage Manager to hang during EOI or EOD has been resolved.

[FIX] Discovery issues with DAPs when Storage Manager was used in sm-single mode have been resolved.

[FIX] Storage Manager now retries if it's unable to initially reach the Reliable Transport.


[FIX] Airgap licensing problems due to lack of support for regional AWS STS endpoints have been resolved.

Known Issues

  • If you request too much data in a single getData(), the request will fail. To overcome this issue you should request less data per getData() call. The error message returned will look like the example below:
   {"header":{"http":"json","corr":"6dd8f0c5-1895-49c9-a87a-636a834af370","logCorr":"6dd8f0c5-1895-49c9-a87a-636a834af370","client":":","api":".kxi.getData","protocol":"gw","numRP":1,"ogRcID":"","to":"2022-04-07T11:41:35.717000000","retryCount":0,"rc":42,"ac":10,"ai":"Agg died"},"payload":[]}
  • cannot be run in a pipeline to query a KX Insights database. The following example code can be used as a workaround to query data (ex. reference data to be used within a pipeline).
    if[0 <> hdr`ac;
        .sp.log.error ("Query failed host=%s, api=%s, code=%n, error=%s";hdr`gw; hdr`api; hdr`ac; hdr`ai)];
    publish data
.qsp.onStart {
    h:hopen hsym `$"sg-gateway-host:5050";
    res: neg[h] (`.kxi.getData; (enlist `table)!(enlist `instruments); `onResponse; (0#`)!());
    }[`publish] .qsp.write.toConsole[]
  • If metrics reporting is enabled within a microservice, along with the handler for, services calling through the with 0(f;x) will throw a type error due to a failure in the handler to return correctly. The workaround, if metrics reporting is enabled, is to disable the event handler in the metrics configuration for all microservices.
"metrics": {
    "enabled": "true",
    "frequency": 5,
    "handler": {
        "pc": true,
        "pg": true,
        "ph": true,
        "po": true,
        "pp": true,
        "ps": false,
        "ts": true,
        "wc": true,
        "wo": true,
        "ws": true

Upgrade considerations

  • If using a kdb+ tick tickerplant, the schema for database signals has changed to the following, which must be updated in the tick sym.q
(`$"_prtnEnd") set ([] time:"n"$(); sym:`$(); signal:`$(); endTS:"p"$(); opts:())
(`$"_reload") set ([] time:"n"$(); sym:`$(); mount:`$(); params:(); asm:`$())


Highlights denote artifacts which have been updated as part of this patch release. All other artifacts are unchanged from the previous major or minor release.

Service Discovery

microservice Docker Helm Chart
Discovery Registry
Discovery Proxy

Stream Processor

microservice Docker qpk

Data Access

microservice Docker
Data Access Process (DA)
Single container

Storage Manager

microservice Docker
Storage Manager
End of Interval (EOI)
End of Day (EOD)
Database Migration (DBM)
Single Container

Service Gateway

microservice Docker
Resource Coordinator

User interface

microservice Docker Helm Chart

Machine Learning

microservice package
ML Registry
ML Analytics


microservice Docker package
Metrics Sidecar
OpenAPI SDK Generator