Hi everybody,
To sumary, we have a sFTP files collector
It has to collect files on different paths with a polling period
Thread 1 of collect
While (true)
cd PathP
get FileF
sleep(X sec)
}
It has works several months and then I discovered that no more files were
collected...
So we made several jstack and discovered the thread in charge of this job is
frozen, since several days on command :
"com.jcraft.jsch.ChannelSftp.cd"
Thread 30610: (state = BLOCKED)
- java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be
imprecise)
- java.io.PipedInputStream.read() @bci=142, line=310 (Compiled frame)
- java.io.PipedInputStream.read(byte[], int, int) @bci=43, line=361 (Compiled
frame)
- com.jcraft.jsch.ChannelSftp.fill(byte[], int, int) @bci=17, line=2325
(Compiled frame)
- com.jcraft.jsch.ChannelSftp.header(com.jcraft.jsch.Buffer,
com.jcraft.jsch.ChannelSftp$Header) @bci=12, line=2351 (Compiled frame)
- com.jcraft.jsch.ChannelSftp._realpath(java.lang.String) @bci=27, line=1810
(Compiled frame)
- com.jcraft.jsch.ChannelSftp.cd(java.lang.String) @bci=14, line=268
(Interpreted frame)
- dpm.distributorFTP.SFTPClientWrapper.cd(java.lang.String) @bci=22, line=142
(Compiled frame)
- dpm.collectorFTP.CollectorFTPClient.scanServer() @bci=225, line=776
(Compiled frame)
- dpm.collectorFTP.CollectorFTPClient.collectorProcedure() @bci=144, line=612
(Interpreted frame)
-
dpm.collectorFTP.CollectorFTPClient.access$1000(dpm.collectorFTP.CollectorFTPClient)
@bci=1, line=90 (Compiled frame)
- dpm.collectorFTP.CollectorFTPClient$ThreadForScan.run() @bci=28, line=226
(Compiled frame)
- java.lang.Thread.run() @bci=11, line=619 (Interpreted frame)
============================================
To be able to continue the collecte,
We launched an other thread witch restart correcly the files collect
But the old thread is always frozen on jstack "com.jcraft.jsch.ChannelSftp.cd"
!!!
============================================
I saw message about "ls" "frozen"
Does this problem on "cd" has been already met
Thanks.
Laurent.
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