transient cache flush error

[ericknappe]

No description provided.

[ericknappe]

I'm seeing cache errors on prod since the upgrade. I'll get 3 to 4 errors in a row and then the cache flush will work.

ubuntu@hcommons:~/utils/core_utils$ ~/dev-scripts/commons/all_networks_wp.bash cache flush
Predis\Connection\ConnectionException: Error while reading line from the server. [tcp://hc-prod-redis.nxxxqb.ng.0001.use1.cache.amazonaws.com:6379] in /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Connection/AbstractConnection.php:155
Stack trace:
#0 /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Connection/StreamConnection.php(314): Predis\Connection\AbstractConnection->onConnectionError('Error while rea...')
#1 /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Connection/AbstractConnection.php(120): Predis\Connection\StreamConnection->read()
#2 /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Connection/AbstractConnection.php(112): Predis\Connection\AbstractConnection->readResponse(Object(Predis\Command\ServerFlushDatabase))
#3 /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Client.php(331): Predis\Connection\AbstractConnection->executeCommand(Object(Predis\Command\ServerFlushDatabase))
#4 /srv/www/commons/current/web/app/plugins/redis-cache/dependencies/predis/predis/src/Client.php(314): Predis\Client->executeCommand(Object(Predis\Command\ServerFlushDatabase))
#5 /srv/www/commons/current/web/app/plugins/redis-cache/includes/object-cache.php(1231): Predis\Client->__call('flushdb', Array)
#6 /srv/www/commons/current/web/app/plugins/redis-cache/includes/object-cache.php(94): WP_Object_Cache->flush(0)
#7 phar:///usr/local/bin/wp/vendor/wp-cli/cache-command/src/Cache_Command.php(158): wp_cache_flush()
#8 [internal function]: Cache_Command->flush(Array, Array)
#9 phar:///usr/local/bin/wp/php/WP_CLI/Dispatcher/CommandFactory.php(89): call_user_func(Array, Array, Array)
#10 [internal function]: WP_CLI\Dispatcher\CommandFactory::WP_CLI\Dispatcher{closure}(Array, Array)
#11 phar:///usr/local/bin/wp/php/WP_CLI/Dispatcher/Subcommand.php(425): call_user_func(Object(Closure), Array, Array)
#12 phar:///usr/local/bin/wp/php/WP_CLI/Runner.php(360): WP_CLI\Dispatcher\Subcommand->invoke(Array, Array, Array)
#13 phar:///usr/local/bin/wp/php/WP_CLI/Runner.php(383): WP_CLI\Runner->run_command(Array, Array)
#14 phar:///usr/local/bin/wp/php/WP_CLI/Runner.php(1109): WP_CLI\Runner->_run_command_and_exit()
#15 phar:///usr/local/bin/wp/php/WP_CLI/Bootstrap/LaunchRunner.php(23): WP_CLI\Runner->start()
#16 phar:///usr/local/bin/wp/php/bootstrap.php(75): WP_CLI\Bootstrap\LaunchRunner->process(Object(WP_CLI\Bootstrap\BootstrapState))
#17 phar:///usr/local/bin/wp/php/wp-cli.php(23): WP_CLI\bootstrap()
#18 phar:///usr/local/bin/wp/php/boot-phar.php(8): include('phar:///usr/loc...')
#19 /usr/local/bin/wp(4): include('phar:///usr/loc...')
#20 {main}
Error: The object cache could not be flushed.