在將 Resque 與 Redis 一起用于異步作業時，看到一些我無法完全解釋的奇怪行為。當作業失敗時，該方法report_failed_job會引發例外，說明命令“存在？” 不存在。以前有沒有其他人遇到過這個問題？
Resque 1.27.4
Redis 3.3.5
From: /app/gems/gems/resque-1.27.4/lib/resque/worker.rb @ line 287 Resque::Worker#report_failed_job:
282: def report_failed_job(job,exception)
283: log_with_severity :error, "#{job.inspect} failed: #{exception.inspect}"
284: begin
285: job.fail(exception)
286: rescue Object => exception
=> 287: log_with_severity :error, "Received exception when reporting failure: #{exception.inspect}"
288: end
289: begin
290: failed!
291: rescue Object => exception
292: log_with_severity :error, "Received exception when increasing failed jobs counter (redis issue) : #{exception.inspect}"
293: end
294: end
[1] pry(#<Resque::Worker>)> exception
#<Redis::CommandError: ERR unknown command 'exists?'>
這是堆疊跟蹤：
[2] pry(#<Resque::Worker>)> exception.backtrace
[
[ 0] "/app/gems/gems/redis-3.3.5/lib/redis/client.rb:121:in `call'",
[ 1] "/app/gems/gems/ddtrace-0.37.0/lib/ddtrace/contrib/redis/patcher.rb:46:in `block in call'",
[ 2] "/app/gems/gems/ddtrace-0.37.0/lib/ddtrace/tracer.rb:276:in `trace'",
[ 3] "/app/gems/gems/ddtrace-0.37.0/lib/ddtrace/contrib/redis/patcher.rb:40:in `call'",
[ 4] "/app/gems/gems/redis-3.3.5/lib/redis.rb:2715:in `block in method_missing'",
[ 5] "/app/gems/gems/redis-3.3.5/lib/redis.rb:58:in `block in synchronize'",
[ 6] "/usr/local/lib/ruby/2.4.0/monitor.rb:214:in `mon_synchronize'",
[ 7] "/app/gems/gems/redis-3.3.5/lib/redis.rb:58:in `synchronize'",
[ 8] "/app/gems/gems/redis-3.3.5/lib/redis.rb:2714:in `method_missing'",
[ 9] "/app/gems/gems/redis-namespace-1.8.1/lib/redis/namespace.rb:476:in `call_with_namespace'",
[10] "/app/gems/gems/redis-namespace-1.8.1/lib/redis/namespace.rb:352:in `block (2 levels) in <class:Namespace>'",
[11] "/app/gems/gems/resque-1.27.4/lib/resque/data_store.rb:59:in `method_missing'",
[12] "/app/gems/gems/resque-retry-1.7.6/lib/resque/failure/multiple_with_retry_suppression.rb:153:in `redis_key_exists?'",
[13] "/app/gems/gems/resque-retry-1.7.6/lib/resque/failure/multiple_with_retry_suppression.rb:146:in `retrying?'",
[14] "/app/gems/gems/resque-retry-1.7.6/lib/resque/failure/multiple_with_retry_suppression.rb:35:in `save'",
[15] "/app/gems/gems/resque-1.27.4/lib/resque/failure.rb:17:in `create'",
[16] "/app/gems/gems/resque-1.27.4/lib/resque/job.rb:238:in `fail'",
[17] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:285:in `report_failed_job'",
[18] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:306:in `rescue in perform'",
[19] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:311:in `perform'",
[20] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:894:in `block in perform_with_fork'",
[21] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:892:in `fork'",
[22] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:892:in `perform_with_fork'",
[23] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:260:in `work_one_job'",
[24] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:234:in `block in work'",
[25] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:231:in `loop'",
[26] "/app/gems/gems/resque-1.27.4/lib/resque/worker.rb:231:in `work'",
[27] "/app/gems/gems/resque-1.27.4/lib/resque/tasks.rb:20:in `block (2 levels) in <top (required)>'",
[28] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'",
[29] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'",
[30] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'",
[31] "/app/gems/gems/airbrake-10.0.6/lib/airbrake/rake.rb:19:in `execute'",
[32] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'",
[33] "/usr/local/lib/ruby/2.4.0/monitor.rb:214:in `mon_synchronize'",
[34] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'",
[35] "/app/gems/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'",
[36] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:150:in `invoke_task'",
[37] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'",
[38] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:106:in `each'",
[39] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:106:in `block in top_level'",
[40] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:115:in `run_with_threads'",
[41] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:100:in `top_level'",
[42] "/app/gems/gems/railties-5.0.7.2/lib/rails/commands/rake_proxy.rb:14:in `block in run_rake_task'",
[43] "/app/gems/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'",
[44] "/app/gems/gems/railties-5.0.7.2/lib/rails/commands/rake_proxy.rb:11:in `run_rake_task'",
[45] "/app/gems/gems/railties-5.0.7.2/lib/rails/commands/commands_tasks.rb:51:in `run_command!'",
[46] "/app/gems/gems/railties-5.0.7.2/lib/rails/commands.rb:18:in `<top (required)>'",
[47] "/app/development/bin/rails:4:in `require'",
[48] "/app/development/bin/rails:4:in `<main>'"
uj5u.com熱心網友回復：
resque-retry-1.7.6是用這里Redis.exists?的方法，不過這個需要。您可以降級到或升級到.redis>=4resque-retry-1.7.5redis>=4
轉載請註明出處，本文鏈接：https://www.uj5u.com/qianduan/433912.html