You can check the distribution with the control script:

./control.sh —cache distribution null

This displays the number of records per partition for all caches and nodes. 

> On 8 Nov 2021, at 20:24, Shishkov Ilya <shishkovi...@gmail.com> wrote:
> 
> Hi!
> As I know, if you remove some cache entries (keys), their corresponding 
> segments in the data pages remain empty in the persistent store until you 
> insert these keys back into Ignite. So, it looks like voids in data pages. 
> But the rebalanced data is put into persistent storage without any kind of 
> "voids", i.e. it is already compressed during the rebalance routine.
> 
> пн, 8 нояб. 2021 г. в 17:36, Ibrahim Altun <ibrahim.al...@segmentify.com 
> <mailto:ibrahim.al...@segmentify.com>>:
> Hi,
> 
> We had a 2 node cluster with persistence enabled with backup(1) enabled, this 
> morning we've added a new node to the cluster. 
> Although rebalancing is finished Ignite Persistence values are not evenly 
> distributed;
> 
> server-1:
> [2021-11-08T14:31:29,371][INFO ][grid-timeout-worker-#13][IgniteKernal] 
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=d9a3fb2f, uptime=01:35:00.491]
>     ^-- Cluster [hosts=8, CPUs=32, servers=3, clients=7, topVer=36, 
> minorTopVer=3]
>     ^-- Network [addrs=[10.156.0.112, 127.0.0.1], discoPort=47500, 
> commPort=47100]
>     ^-- CPU [CPUs=4, curLoad=0.33%, avgLoad=3.48%, GC=0%]
>     ^-- Heap [used=5418MB, free=33.85%, comm=8192MB]
>     ^-- Off-heap memory [used=6025MB, free=7.92%, allocated=6344MB]
>     ^-- Page memory [pages=1524682]
>     ^--   sysMemPlc region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.99%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   default region [type=default, persistence=true, lazyAlloc=true,
>       ...  initCfg=256MB, maxCfg=6144MB, usedRam=6025MB, freeRam=1.93%, 
> allocRam=6144MB, allocTotal=80891MB]
>     ^--   metastoreMemPlc region [type=internal, persistence=true, 
> lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.81%, 
> allocRam=0MB, allocTotal=0MB]
>     ^--   TxLog region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   volatileDsMemPlc region [type=user, persistence=false, 
> lazyAlloc=true,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=0MB]
>     ^-- Ignite persistence [used=80891MB]
>     ^-- Outbound messages queue [size=0]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=0, idle=4, qSize=0]
> 
> server-2:
> [2021-11-08T14:31:20,475][INFO ][grid-timeout-worker-#13][IgniteKernal] 
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=d001436d, uptime=00:46:00.231]
>     ^-- Cluster [hosts=8, CPUs=32, servers=3, clients=7, topVer=36, 
> minorTopVer=3]
>     ^-- Network [addrs=[10.156.0.113, 127.0.0.1], discoPort=47500, 
> commPort=47100]
>     ^-- CPU [CPUs=4, curLoad=4.43%, avgLoad=5.11%, GC=0%]
>     ^-- Heap [used=6468MB, free=21.04%, comm=8192MB]
>     ^-- Off-heap memory [used=6025MB, free=7.92%, allocated=6344MB]
>     ^-- Page memory [pages=1524684]
>     ^--   sysMemPlc region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.99%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   default region [type=default, persistence=true, lazyAlloc=true,
>       ...  initCfg=256MB, maxCfg=6144MB, usedRam=6025MB, freeRam=1.93%, 
> allocRam=6144MB, allocTotal=82852MB]
>     ^--   metastoreMemPlc region [type=internal, persistence=true, 
> lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.8%, 
> allocRam=0MB, allocTotal=0MB]
>     ^--   TxLog region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   volatileDsMemPlc region [type=user, persistence=false, 
> lazyAlloc=true,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=0MB]
>     ^-- Ignite persistence [used=82852MB]
>     ^-- Outbound messages queue [size=0]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=0, idle=4, qSize=0]
> 
> server-3:
> [2021-11-08T14:31:21,364][INFO ][grid-timeout-worker-#13][IgniteKernal] 
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=186395d1, uptime=03:36:01.279]
>     ^-- Cluster [hosts=8, CPUs=32, servers=3, clients=7, topVer=36, 
> minorTopVer=3]
>     ^-- Network [addrs=[10.156.0.10, 127.0.0.1], discoPort=47500, 
> commPort=47100]
>     ^-- CPU [CPUs=4, curLoad=0.4%, avgLoad=8.55%, GC=0%]
>     ^-- Heap [used=6153MB, free=24.89%, comm=8192MB]
>     ^-- Off-heap memory [used=6025MB, free=7.92%, allocated=6344MB]
>     ^-- Page memory [pages=1524749]
>     ^--   sysMemPlc region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.98%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   default region [type=default, persistence=true, lazyAlloc=true,
>       ...  initCfg=256MB, maxCfg=6144MB, usedRam=6025MB, freeRam=1.93%, 
> allocRam=6144MB, allocTotal=16164MB]
>     ^--   metastoreMemPlc region [type=internal, persistence=true, 
> lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.56%, 
> allocRam=0MB, allocTotal=0MB]
>     ^--   TxLog region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   volatileDsMemPlc region [type=user, persistence=false, 
> lazyAlloc=true,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=0MB]
>     ^-- Ignite persistence [used=16165MB]
>     ^-- Outbound messages queue [size=0]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=0, idle=4, qSize=0]
> 
> Before new node added to cluster data was evenly distributed;
> 
> server-1:
> [2021-11-08T06:00:52,779][INFO ][grid-timeout-worker-#13][IgniteKernal]
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=cde7abcb, uptime=4 days, 03:38:05.557]
>     ^-- Cluster [hosts=7, CPUs=28, servers=2, clients=7, topVer=17, 
> minorTopVer=0]
>     ^-- Network [addrs=[10.156.0.112, 127.0.0.1], discoPort=47500, 
> commPort=47100]
>     ^-- CPU [CPUs=4, curLoad=100%, avgLoad=5.78%, GC=117%]
>     ^-- Heap [used=7669MB, free=6.37%, comm=8192MB]
>     ^-- Off-heap memory [used=6025MB, free=7.92%, allocated=6344MB]
>     ^-- Page memory [pages=1524669]
>     ^--   sysMemPlc region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.99%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   default region [type=default, persistence=true, lazyAlloc=true,
>       ...  initCfg=256MB, maxCfg=6144MB, usedRam=6025MB, freeRam=1.93%, 
> allocRam=6144MB, allocTotal=121061MB]
>     ^--   metastoreMemPlc region [type=internal, persistence=true, 
> lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.86%, 
> allocRam=0MB, allocTotal=0MB]
>     ^--   TxLog region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   volatileDsMemPlc region [type=user, persistence=false, 
> lazyAlloc=true,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=0MB]
>     ^-- Ignite persistence [used=121061MB]
>     ^-- Outbound messages queue [size=1]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=1, idle=3, qSize=1]
> 
> server-2:
> [2021-11-08T06:00:37,491][INFO ][grid-timeout-worker-#13][IgniteKernal]
> Metrics for local node (to disable set 'metricsLogFrequency' to 0)
>     ^-- Node [id=90f15a32, uptime=4 days, 03:37:54.391]
>     ^-- Cluster [hosts=7, CPUs=28, servers=2, clients=7, topVer=17, 
> minorTopVer=0]
>     ^-- Network [addrs=[10.156.0.113, 127.0.0.1], discoPort=47500, 
> commPort=47100]
>     ^-- CPU [CPUs=4, curLoad=2.6%, avgLoad=7.38%, GC=0%]
>     ^-- Heap [used=7877MB, free=3.83%, comm=8192MB]
>     ^-- Off-heap memory [used=6025MB, free=7.92%, allocated=6344MB]
>     ^-- Page memory [pages=1524670]
>     ^--   sysMemPlc region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.99%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   default region [type=default, persistence=true, lazyAlloc=true,
>       ...  initCfg=256MB, maxCfg=6144MB, usedRam=6025MB, freeRam=1.93%, 
> allocRam=6144MB, allocTotal=121310MB]
>     ^--   metastoreMemPlc region [type=internal, persistence=true, 
> lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=99.86%, 
> allocRam=0MB, allocTotal=0MB]
>     ^--   TxLog region [type=internal, persistence=true, lazyAlloc=false,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=100MB, allocTotal=0MB]
>     ^--   volatileDsMemPlc region [type=user, persistence=false, 
> lazyAlloc=true,
>       ...  initCfg=40MB, maxCfg=100MB, usedRam=0MB, freeRam=100%, 
> allocRam=0MB]
>     ^-- Ignite persistence [used=121310MB]
>     ^-- Outbound messages queue [size=0]
>     ^-- Public thread pool [active=0, idle=0, qSize=0]
>     ^-- System thread pool [active=0, idle=4, qSize=0]
> 
> 
> My expectation is data to be distributed evenly.
> 
> What am I missing? 
> 
> Regardds.
> 
> -- 
>  <https://www.segmentify.com/>
> İbrahim Halil Altun
> Senior Software Engineer
> 
> +90 536 3327510 • segmentify.com → <https://www.segmentify.com/>
> UK • Germany • Turkey
> 
>  <https://www.segmentify.com/ecommerce-growth-show> 
> <https://www.g2.com/products/segmentify/reviews>

Reply via email to