[jira] [Created] (SOLR-13814) Rebalance Ram usages for Solr Cloud

["Hoan Tran Van (Jira)" <ji...@apache.org>]

Hoan Tran Van created SOLR-13814:
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             Summary: Rebalance Ram usages for Solr Cloud
                 Key: SOLR-13814
                 URL: https://issues.apache.org/jira/browse/SOLR-13814
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: SolrCloud
    Affects Versions: 6.6
            Reporter: Hoan Tran Van


I have a SolrCloud with 9 nodes. the server 2, 4, 5 usually have high RAM usage > 92%. I restart but they will increase after 1-3 days, others server never reach 90% RAM. 9 sever are similar. 9 solr nodes have same solr.in.sh configuration. 9 server used DIH for import from Oracle. I compare some metrics but there are not much different (excep server 1 have less core than others)
|Server|Total request last 12h|Total update last 12h|Replica|Leader|Total core|index size (TB)|Number of doc (billion)|-/+ buffers/cache (GB)|Ram free (MB)|Total RAM|Cache size|
|Server 1|12M|10M|17|37|54|2.3|190|35.00|1288|252|0|
|Server 2|24M|92M|57|18|75|3.2|270|18.00|655|252|0|
|Server 3|23M|95M|38|34|72|2.98|260|53.00|2062|252|0|
|Server 4|16M|99M|28|48|76|3.03|270|30.00|1329|252|0|
|Server 5|15M|15M|67|3|70|2.87|255|15.00|1535|252|0|
|Server 6|15M|11M|37|32|69|2.85|250|71.00|828|252|0|
|Server 7|14M|10M|10|61|71|2.3|191|38.00|2459|252|0|
|Server 8|17M|12M|61|12|73|3|266|86.00|1648|252|0|
|Server 9|15M|12M|16|59|75|3.11|270|58.00|778|252|0|



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