sinknesha opened a new issue, #1808:
URL: https://github.com/apache/cloudberry/issues/1808

   Hello, 
   We are frequently encountering the message "interconnect may have 
encountered a network error, please check your network" in the segment logs. 
Additionally, we have observed segment failures on several occasions, with the 
same error reported in the logs. We would appreciate your input and suggestions 
on how to resolve this issue. Aside from the interconnect error, we have been 
experiencing segmentation fault (signal 11 SIGSEGV) related crashes, mainly 
with CTE queries and more recently with the update statement. 
   
   Steps taken for optimization so far interconnect warnings/errors:
   · Server health and network health have been checked, no noticeable issues 
have been reported.
   · The gp_max_packet_size value has been reduced to 1420 from the default 
value of 8192, to align with the VM’s MTU of 1500. However, this adjustment 
does not seem to have helped much and requires further data, along with 
addressing the interconnect error.
   
   Our current cluster settings:
   gp_max_packet_size = 8192
   gp_interconnect_type = udpifc
   gp_interconnect_transmit_timeout = 1hr
   gp_fts_probe_timeout = 40 seconds
   gp_interconnect_type = udpifc
   ## system
   net.core.rmem_max = 4194304
   net.core.rmem_default = 212992
   


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