I'm trying to debug "too many open files" issue caused by a Java process (PID=11389). Executing "lsof -p 11389" produces a large number of pipes as below.
java 11389 root 379r FIFO 0,8 0t0 544900285 pipe
java 11389 root 381w FIFO 0,8 0t0 544890429 pipe
java 11389 root 382r FIFO 0,8 0t0 544899071 pipe
java 11389 root 383w FIFO 0,8 0t0 544890432 pipe
java 11389 root 384u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 385r FIFO 0,8 0t0 544890433 pipe
java 11389 root 386u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 387r FIFO 0,8 0t0 544877444 pipe
java 11389 root 388w FIFO 0,8 0t0 544877444 pipe
java 11389 root 389u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 390r FIFO 0,8 0t0 544877445 pipe
java 11389 root 391w FIFO 0,8 0t0 544877445 pipe
java 11389 root 392u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 393r FIFO 0,8 0t0 544877446 pipe
java 11389 root 394w FIFO 0,8 0t0 544877446 pipe
java 11389 root 395u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 396r FIFO 0,8 0t0 544877447 pipe
java 11389 root 397w FIFO 0,8 0t0 544877447 pipe
java 11389 root 398u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 399w FIFO 0,8 0t0 544890433 pipe
java 11389 root 400u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 407u a_inode 0,9 0 5577 [eventpoll]
java 11389 root 408r FIFO 0,8 0t0 544896999 pipe
java 11389 root 409w FIFO 0,8 0t0 544896999 pipe
This list keeps growing to the point that we get "Too many open files" error. Considering that java process (11389) is the one that writes to and reads from the pipes, I'm wondering if there's any tools I can use to trace this to the Java code that causes the issue.
