Hi Lucene Team,

 

On our test system the document store and indexing happening simultaneously, I just ran lsof –p <java_process_id> to see how many file descriptors are opened by this java process,

there were many results marked with deleted, I am having the following doubts here

1)      Is Lucene is ignoring releasing this file descriptors?

2)      Will it not cause any problem if these are like this?

3)      Any I/O performance issues will come if it is like this?

 

I attached complete out put of the following command in text file, please can you answer kindly?

[root@sc-s1-172-1.oxford.com ~]# lsof -p 15580 | grep "(deleted)" >>/root/deleted.txt

 

[root@sc-s1-172-1.oxford.com ~]# lsof -p 15580 | grep "(deleted)" | wc -l

933

COMMAND   PID    USER   FD   TYPE             DEVICE       SIZE      NODE NAME

java    15580 appuser  139r   REG             104,17      11933 338296874 /store/index/TP_0000000000000000498/_od8.fdt (deleted)

java    15580 appuser  146r   REG             104,17        200 338296884 /store/index/TP_0000000000000000498/_od8.fdx (deleted)

java    15580 appuser  147r   REG             104,17      96920 355074064 /store/index/TP_0000000000000000498/_od8.tis (deleted)

java    15580 appuser  392r   REG             104,17     503095 311033904 /store/index/TP_0000000000000000505/_fkg.fdt (deleted)

java    15580 appuser  403r   REG             104,17       8000 311033905 /store/index/TP_0000000000000000505/_fkg.fdx (deleted)

java    15580 appuser  405r   REG             104,17    1055507 411893896 /store/index/TP_0000000000000000482/_gvy.fdt (deleted)

java    15580 appuser  425r   REG             104,17      16184 411893897 /store/index/TP_0000000000000000482/_gvy.fdx (deleted)

java    15580 appuser  426r   REG             104,17    1905265 411893900 /store/index/TP_0000000000000000482/_gvy.tis (deleted)

java    15580 appuser  433r   REG             104,17    5149126 411893898 /store/index/TP_0000000000000000482/_gvy.frq (deleted)

java    15580 appuser  435r   REG             104,17   10719962 411893899 /store/index/TP_0000000000000000482/_gvy.prx (deleted)

java    15580 appuser  436r   REG             104,17      46533 411893902 /store/index/TP_0000000000000000482/_gvy.nrm (deleted)

java    15580 appuser  454r   REG             104,17    2920506 311033917 /store/index/TP_0000000000000000505/_fkg.tis (deleted)

 

Regards

Ravi