mirror of https://github.com/apache/druid.git
caf8ce3e0b
* MSQ: Add CPU and thread usage counters. The main change adds "cpu" and "wall" counters. The "cpu" counter measures CPU time (using JvmUtils.getCurrentThreadCpuTime) taken up by processors in processing threads. The "wall" counter measures the amount of wall time taken up by processors in those same processing threads. Both counters are broken down by type of processor. This patch also includes changes to support adding new counters. Due to an oversight in the original design, older deserializers are not forwards-compatible; they throw errors when encountering an unknown counter type. To manage this, the following changes are made: 1) The defaultImpl NilQueryCounterSnapshot is added to QueryCounterSnapshot's deserialization configuration. This means that any unrecognized counter types will be read as "nil" by deserializers. Going forward, once all servers are on the latest code, this is enough to enable easily adding new counters. 2) A new context parameter "includeAllCounters" is added, which defaults to "false". When this parameter is set "false", only legacy counters are included. When set to "true", all counters are included. This is currently undocumented. In a future version, we should set the default to "true", and at that time, include a release note that people updating from versions prior to Druid 31 should set this to "false" until their upgrade is complete. * Style, coverage. * Fix. |
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| .. | ||
| avro-extensions | ||
| azure-extensions | ||
| datasketches | ||
| druid-aws-rds-extensions | ||
| druid-basic-security | ||
| druid-bloom-filter | ||
| druid-catalog | ||
| druid-kerberos | ||
| druid-pac4j | ||
| druid-ranger-security | ||
| ec2-extensions | ||
| google-extensions | ||
| hdfs-storage | ||
| histogram | ||
| kafka-extraction-namespace | ||
| kafka-indexing-service | ||
| kinesis-indexing-service | ||
| kubernetes-extensions | ||
| lookups-cached-global | ||
| lookups-cached-single | ||
| multi-stage-query | ||
| mysql-metadata-storage | ||
| orc-extensions | ||
| parquet-extensions | ||
| postgresql-metadata-storage | ||
| protobuf-extensions | ||
| s3-extensions | ||
| simple-client-sslcontext | ||
| stats | ||
| testing-tools | ||