[SOLR-15998] replicaType=TLOG oom killer event occurs

• Type: Improvement
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 8.4.1
• Component/s: clients - java
• Assignee: Unassigned
• Reporter: Mark
• Created: 09/Feb/22 04:56
• Updated: 12/May/22 00:35

Description

Hello,

This is my Solr Cloud cluster.

 

16 Shard (32 Node)
    1 LEADER   (replicaType=TLOG)
    1 REPLICA  (replicaType=TLOG)

Node Information
    4core vCPU
    32 GB Pysical Memory
    16~20GB SOLR - JAVA HEAP
    500 GB SSD

Traffic
    - Write 10,000 ~ 30,000 document/Per sec  

    - Solr Index Size - using 50% disk 

In this situation, all replicas are down when performing Select Query. (Solr_oom.sh killer event occurs)

However, this does not happen in case of replicaType=NRT.

But, NRT write performance is severely degraded, so we try not to use it.

Using cursor.