Kiu/VictoriaMetrics
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VictoriaMetrics/app/vmstorage
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Aliaksandr Valialkin 7d5c64eb7a
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 15:28:09 -08:00
..
deployment Rootless docker images by default (#358) 2020-03-27 21:18:32 +02:00
multiarch app: fix make publish-* after ed93330e66 2022-07-14 11:01:34 +03:00
servers {app/vmstorage,app/vmselect}: add API to get list of existing tenants (#3348) 2022-11-25 10:32:45 -08:00
main.go all: add -inmemoryDataFlushInterval command-line flag for controlling the frequency of saving in-memory data to disk 2022-12-05 15:28:09 -08:00
Makefile app/{vminsert,vmselect,vmstorage}: add package-{vminsert,vmselect,vmstorage}-{goarch} Makefile rules for building arch-specific docker images 2022-10-07 20:17:01 +03:00
README.md all: open-sourcing cluster version 2019-05-23 00:25:38 +03:00

README.md

vmstorage performs the following tasks:

  • Accepts inserts from vminsert nodes and stores them to local storage.

  • Performs select requests from vmselect nodes.