[ZODB-Dev] more lockup information / zope2.9.6+zodb 3.6.2

[Alan Runyan]

Hi guys.

Running Zope 2.9.6 with ZODB 3.6.2 on Python 2.4

Having lots of lockups.  Have approximately 12 zeo clients on 2
machines connecting to a single zeo server. All on local network.
Disks and network is monitored by competent hosting company.  All
looks healthy except zeo communication.

Linux  2.6.9-42.0.8.ELsmp

some feedback from manage_debug_threads:

http://paste.plone.org/13821
http://paste.plone.org/13822
http://paste.plone.org/13823

typical client zeo configuration:
/var/zope/ah0/zope.conf (included zope.conf)
%define HTTP_SERVER 7580
%define ICP_SERVER 7680
%define INSTANCE /var/zope/ah0
%define MAIN_NAME epsilon0
%define CATALOG_NAME epsilonA
%include /var/zope/etc/zope.conf

/var/zope/etc/zope.conf (main zope.conf)
<zodb_db main>
  mount-point /
  # ZODB cache, in number of objects
  cache-size 20000
  <zeoclient>
    server gamma-gw.audioholics.com:8100
    storage 1
    name $MAIN_NAME
    var $INSTANCE/var
    # ZEO client cache, in bytes
    cache-size 1024MB
    # Uncomment to have a persistent disk cache
    #client zeo1
  </zeoclient>
</zodb_db>

<zodb_db catalog>
   mount-point /audioholics/portal_catalog
   container-class Products.CMFPlone.CatalogTool.CatalogTool
   cache-size 50000
   <zeoclient>
    cache-size 1024MB
    server gamma-gw.audioholics.com:8100
    storage 2
    name $CATALOG_NAME
    var $INSTANCE/var
  </zeoclient>
</zodb_db>

any ideas?

alan