When RRDtool fails to initialize, DSStats generates lots of warnings

[whsir]

lnmp

Current PHP version
php7.2.16

cacti.log

2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[847]:feof(), CactiErrorHandler())
2019/04/04 11:42:08 - CMDPHP PHP ERROR WARNING Backtrace: (/poller_dsstats.php[190]:dsstats_get_and_store_ds_avgpeak_values(), /lib/dsstats.php[86]:dsstats_obtain_data_source_avgpeak_values(), /lib/dsstats.php[193]:dsstats_rrdtool_execute(), /lib/dsstats.php[848]:fgets(), CactiErrorHandler())
2019/04/04 11:42:08 - ERROR PHP WARNING: fgets() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 848
2019/04/04 11:42:08 - ERROR PHP WARNING: feof() expects parameter 1 to be resource, null given in file: /data/www/cacti/lib/dsstats.php on line: 847

I don't know how,It's very much

even root

[whsir]

lnmp stop，There are still

[whsir]

Why is the log printed when all the services have stopped

[whsir]

I found process residue

[whsir]

next

Change php5.6 version，The error disappeared

[netniV]

This error is more because of RRDTool's pipe not being available.

[whsir]

Do not change the php version，
Is there any good solution?

[whsir]

RRDTool version bug?

[cigamit]

Seems to be RRDtool related. I'm going to attempt a fix.

[cigamit]

Please test with the latest dsstats.