istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/wasm/monitoring.go (about) 1 // Copyright Istio Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package wasm 16 17 import "istio.io/istio/pkg/monitoring" 18 19 // Const strings for label value. 20 const ( 21 // For remote fetch metric. 22 fetchSuccess = "success" 23 downloadFailure = "download_failure" 24 manifestFailure = "manifest_failure" 25 checksumMismatch = "checksum_mismatched" 26 27 // For Wasm conversion metric. 28 conversionSuccess = "success" 29 noRemoteLoad = "no_remote_load" 30 marshalFailure = "marshal_failure" 31 unmarshalFailure = "unmarshal_failure" 32 fetchFailure = "fetch_failure" 33 missRemoteFetchHint = "miss_remote_fetch_hint" 34 ) 35 36 var ( 37 hitTag = monitoring.CreateLabel("hit") 38 resultTag = monitoring.CreateLabel("result") 39 40 wasmCacheEntries = monitoring.NewGauge( 41 "wasm_cache_entries", 42 "number of Wasm remote fetch cache entries.", 43 ) 44 45 wasmCacheLookupCount = monitoring.NewSum( 46 "wasm_cache_lookup_count", 47 "number of Wasm remote fetch cache lookups.", 48 ) 49 50 wasmRemoteFetchCount = monitoring.NewSum( 51 "wasm_remote_fetch_count", 52 "number of Wasm remote fetches and results, including success, download failure, and checksum mismatch.", 53 ) 54 55 wasmConfigConversionCount = monitoring.NewSum( 56 "wasm_config_conversion_count", 57 "number of Wasm config conversion count and results, including success, no remote load, marshal failure, remote fetch failure, miss remote fetch hint.", 58 ) 59 60 wasmConfigConversionDuration = monitoring.NewDistribution( 61 "wasm_config_conversion_duration", 62 "Total time in milliseconds istio-agent spends on converting remote load in Wasm config.", 63 []float64{1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384}, 64 ) 65 )