In a Nifi-workflow some of the processors are not showing start button ?

[#1]

We have processors in process group but some of them are not showing up the start button.

Here I have attached the screen shot.....

Could someone help on this ?

nifi-error.png

[#2]

@Veerendra Nath JasthiPossibly, you have a complicated computation (may be regex) running on Getfile, which is taking a lot of time to

complete, also check howmany files it is getting based on your regex, it should be fixed.

[#3]

No I have been using the plain getFile which is having input as a simple folder and we are not doing any regex on those files.

FYI.... In my entire workflow all processors are behaving the same.

[#4]

@Veerendra Nath Jasthi

What is the frequency of files and how big are the files in the given path? Also could you please check your JVM heap memory (this is a guess, not solution)?

[#5]

I've seen the problem you describe with getfile processor when I used it with nifi deployed on Windows OS and the directory I listed had very large number of recursive subdirectories. In source files of nifi 1.3 or 1.4 I noticed there was a code replacing listfiles with DirectoryInputStream methods, but later it was removed