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etcdserver: increase snapshot to 100,000

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Keep more wal entries in memory for fast follower recovery.
10,000 was a too small number that triggers quite a few snapshots.
ZK proves that 100,000 is a reasonable number for even old less prowerful
machines.

Eventually we should provide both count and max memory (for large entries).
This commit is contained in:
Xiang Li 2017-01-13 18:00:28 -08:00
parent 4730bddea7
commit c5a9d54835
3 changed files with 3 additions and 3 deletions
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2
Documentation/op-guide/configuration.md
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@ -28,7 +28,7 @@ To start etcd automatically using custom settings at startup in Linux, using a [
### --snapshot-count ### --snapshot-count
+ Number of committed transactions to trigger a snapshot to disk. + Number of committed transactions to trigger a snapshot to disk.
+ default: "10000" + default: "100000"
+ env variable: ETCD_SNAPSHOT_COUNT + env variable: ETCD_SNAPSHOT_COUNT
### --heartbeat-interval ### --heartbeat-interval

2
etcdmain/help.go
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@ -42,7 +42,7 @@ member flags:
path to the data directory. path to the data directory.
--wal-dir '' --wal-dir ''
path to the dedicated wal directory. path to the dedicated wal directory.
--snapshot-count '10000' --snapshot-count '100000'
number of committed transactions to trigger a snapshot to disk. number of committed transactions to trigger a snapshot to disk.
--heartbeat-interval '100' --heartbeat-interval '100'
time (in milliseconds) of a heartbeat interval. time (in milliseconds) of a heartbeat interval.

2
etcdserver/server.go
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@ -61,7 +61,7 @@ import (
) )
const ( const (
DefaultSnapCount = 10000 DefaultSnapCount = 100000
StoreClusterPrefix = "/0" StoreClusterPrefix = "/0"
StoreKeysPrefix = "/1" StoreKeysPrefix = "/1"