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app/vminsert: fixes readonly check (#4892)

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* app/vminsert: fixes readonly check
previously vminsert doesn't check readOnly state for vmstorage, since check was never performed for nil buffer
In this case every 30 second storage node loss readonly state and received some data.
It caused re-routing and possible slow down for ingestion
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4870

* wip

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
This commit is contained in:
Nikolay 2023-08-30 16:24:24 +02:00 committed by GitHub
parent ae85b20c5b
commit fbe2795670
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2 changed files with 5 additions and 5 deletions
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7
app/vminsert/netstorage/netstorage.go
View File

@ -325,10 +325,9 @@ var cannotCloseStorageNodeConnLogger = logger.WithThrottler("cannotCloseStorageN
var cannotSendBufsLogger = logger.WithThrottler("cannotSendBufRows", 5*time.Second)
func sendToConn(bc *handshake.BufferedConn, buf []byte) error {
if len(buf) == 0 {
// Nothing to send
return nil
}
// if len(buf) == 0, it must be sent to the vmstorage too in order to check for vmstorage health
// See checkReadOnlyMode() and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4870
timeoutSeconds := len(buf) / 3e5
if timeoutSeconds < 60 {
timeoutSeconds = 60

3
docs/CHANGELOG.md
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@ -42,7 +42,8 @@ The following `tip` changes can be tested by building VictoriaMetrics components
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): consistently set timeout for scraping with enabled or disabled [stream parsing mode](https://docs.victoriametrics.com/vmagent.html#stream-parsing-mode). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4847).
* BUGFIX: [Official Grafana dashboards for VictoriaMetrics](https://grafana.com/orgs/victoriametrics): fix display of ingested rows rate for `Samples ingested/s` and `Samples rate` panels for vmagent's dasbhoard. Previously, not all ingested protocols were accounted in these panels. An extra panel `Rows rate` was added to `Ingestion` section to display the split for rows ingested rate by protocol.
* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): correctly re-use HTTP request object on `EOF` retries when querying the configured datasource. Previously, there was a small chance that query retry wouldn't succeed.
* BUGFIX: vmselect: correctly handle requests with `/select/multitenant` prefix. Such requests must be rejected since vmselect does not support multitenancy endpoint. Previously, such requests were causing panic. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4910).
* BUGFIX: [vmselect](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html): correctly handle requests with `/select/multitenant` prefix. Such requests must be rejected since vmselect does not support multitenancy endpoint. Previously, such requests were causing panic. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4910).
* BUGFIX: [vminsert](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html): properly check for [read-only state](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#readonly-mode) at `vmstorage`. Previously it wasn't properly checked, which could lead to increased resource usage and data ingestion slowdown when some of `vmstorage` nodes are in read-only mode. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4870).
## [v1.93.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.1)