sniper-xx edited a comment on issue #4074: URL: https://github.com/apache/apisix/issues/4074#issuecomment-822111340
@Firstsawyou The problem has resovled. the reason is: for the large json response, the _M.body_filter will execute many times. I store every ngx.arg[1] to variable backend_content, but the ngx.arg[1] not clear, so ,the final result is repeated. solution: ```lua if not isFinished then backend_content = backend_content..ngx.arg[1] ngx.arg[1] = nil -- have to clear ngx.arg[1] end ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org