VictoriaMetrics

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History

Aliaksandr Valialkin 8189770c50 all: add `-inmemoryDataFlushInterval` command-line flag for controlling the frequency of saving in-memory data to disk The main purpose of this command-line flag is to increase the lifetime of low-end flash storage with the limited number of write operations it can perform. Such flash storage is usually installed on Raspberry PI or similar appliances. For example, `-inmemoryDataFlushInterval=1h` reduces the frequency of disk write operations to up to once per hour if the ingested one-hour worth of data fits the limit for in-memory data. The in-memory data is searchable in the same way as the data stored on disk. VictoriaMetrics automatically flushes the in-memory data to disk on graceful shutdown via SIGINT signal. The in-memory data is lost on unclean shutdown (hardware power loss, OOM crash, SIGKILL). Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337	2022-12-05 15:16:14 -08:00
..
main.go	all: add `-inmemoryDataFlushInterval` command-line flag for controlling the frequency of saving in-memory data to disk	2022-12-05 15:16:14 -08:00
README.md	all: open-sourcing single-node version	2019-05-23 00:18:06 +03:00

Aliaksandr Valialkin 8189770c50

all: add -inmemoryDataFlushInterval command-line flag for controlling the frequency of saving in-memory data to disk

The main purpose of this command-line flag is to increase the lifetime of low-end flash storage
with the limited number of write operations it can perform. Such flash storage is usually
installed on Raspberry PI or similar appliances.

For example, `-inmemoryDataFlushInterval=1h` reduces the frequency of disk write operations
to up to once per hour if the ingested one-hour worth of data fits the limit for in-memory data.

The in-memory data is searchable in the same way as the data stored on disk.
VictoriaMetrics automatically flushes the in-memory data to disk on graceful shutdown via SIGINT signal.
The in-memory data is lost on unclean shutdown (hardware power loss, OOM crash, SIGKILL).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337

2022-12-05 15:16:14 -08:00

main.go all: add -inmemoryDataFlushInterval command-line flag for controlling the frequency of saving in-memory data to disk 2022-12-05 15:16:14 -08:00

README.md all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00

README.md

vmstorage performs the following tasks:

Accepts inserts from vminsert and stores them to local storage.
Performs select requests from vmselect.