[Dxspider-support] Frequent crashes during WPX CW contest

[Nick-VE3EY]

Hello DX Spider community

Running a V1.57 build 441 with ve7cc rbn capability enabled.

Ever since I upgraded the software it would occasionally crash once 
every two weeks, but during the WPX CW weekend it went down 5-6 times.

Before it goes down it always indicates something like this in the log:

1652847759^(trace) writing /spider/local_data/rbn_cache Too many open files
1652847759^(trace) Stack (2): RBN::DXDebug::confess in 
/spider/perl/RBN.pm line: 907
1652847759^(trace) Stack (3): RBN::RBN::write_cache in 
/spider/perl/RBN.pm line: 855
1652847759^(trace) Stack (4): main::RBN::per_minute in 
/spider/perl/cluster.pl line: 853
1652847759^(*) DXSpider Ceasing
1652847759^(*) DXQSL finished
1652847760^(*) RBN:WRITE_CACHE size: 170.270KB time to write: 20 mS
1652847760^(*) DXDupe finishing
1652847760^(*) DXUser finished
1652847760^(*) DXSpider v1.57 build 441 (git: mojo/e61ab5ee[r]) using 
perl v5.32.1 on linux ended
1652847760^(*) bye bye everyone - bye bye

This installation runs on a Rpi4b with 2Gb of RAM and a 250Gb Samsung 
850 SSD drive.

I am looking for suggestions how to troubleshoot this.

73

Nick VE3EY