邮件被标记为已读但未获取在 Odoo 中运行获取邮件的 cron 时，如何防止进程崩溃？

如何解决邮件被标记为已读但未获取在 Odoo 中运行获取邮件的 cron 时，如何防止进程崩溃？

odoo 8.0.1.3

/var/log/odoo/odoo-server.log

DEBUG pickndrop openerp.addons.base.ir.ir_cron：另一个进程/线程已经在忙于执行作业 Fetchmail Service，跳过它。

odoo-server.conf auto_reload = 假 csv_internal_sep =,debug_mode = 假 演示 = {} email_from = 假 import_partial = #limit_memory_hard = 805306368 #limit_memory_soft = 671088640 限制请求 = 8192 limit_time_cpu = 600 limit_time_real = 1200 list_db = 真

# uncomment below to activate debug logs
#log_handler = ['["[\':DEBUG\']"]']
log_level = debug

# should be set in run command (i.e. via --logfile)
#logfile = /var/log/odoo/odoo-server.log
login_message = False
logrotate = True
max_cron_threads = 2
netrpc = False
netrpc_interface =
netrpc_port = 8070
osv_memory_age_limit = 1.0
osv_memory_count_limit = False
pg_path = None
pidfile = False
proxy_mode = True
reportgz = False
secure_cert_file = server.cert
secure_pkey_file = server.pkey
server_wide_modules = web,web_kanban
smtp_password = False
smtp_port = 25
smtp_server = localhost
smtp_ssl = False
smtp_user = False
static_http_document_root = None
static_http_enable = False
static_http_url_prefix = None
syslog = False
test_commit = False
test_enable = False
test_file = False
test_report_directory = False
timezone = False
translate_modules = ['all']
unaccent = False
without_demo = False
workers = 2
xmlrpc = True
xmlrpc_port = 8069
xmlrpcs = True
xmlrpcs_interface =
xmlrpcs_port = 8071
longpolling_port = 8072