[Pgpool-general] pgpool read/write failed and other errors in our production server

Wed Nov 2 11:35:16 UTC 2011

pgpool-II 2.0.1 is pretty old (released 4 years ago) and is not
maintained any more. It had tons of bugs also. Please use the latest
stable version(3.1).
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

> Our production server is running PostgreSQL 8.2.22 and pgpool-II-2.0.1 in
> CentOS5.2 64-bit arch.  We're running all our application software stack
> (Tomcat, PostgreSQL, pgpool, etc.) in the same server.
> 
> Yesterday, we faced a weird behavior in our production server.  Our
> application was totally hung up and eventually application users were not
> able to access the system completely.  This happened twice.  So we end up
> restarting our complete application service.  On checking PostgreSQL log,
> there were "unexpected EOF on client connection" errors.  But when I also
> checked pgpool log at the same time as these exceptions in PostgreSQL log, I
> could see new type of errors appearing in pgpool log.  I've pasted below
> only pgpool log statements containing ERROR as its debug level.
> 
>>From the ERROR statements, I can see 4 types of exceptions being raised:
> 	1) pool_process_query: kind is 0!
> 	2) ProcessFrontendResponse: failed to read kind from frontend.
> fronend abnormally exited
> 	3) pool_flush_it: write failed (Broken pipe) offset: 0 wlen: xxx
> 	4) pool_read: read failed (Connection reset by peer)
> 
> What are the root cause of these exceptions and what is the severity level
> of it?  How do I prevent/fix these exceptions?
> 
> ERROR statements from pgpool log:
> 2011-11-01 13:39:21 ERROR: pid 3529: pool_process_query: kind is 0!
> 2011-11-01 13:41:03 ERROR: pid 14347: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 31
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 55
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 82
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 103
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 134
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 161
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 195
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 232
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 257
> 2011-11-01 13:41:03 ERROR: pid 4166: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 270
> 2011-11-01 13:41:48 ERROR: pid 3581: pool_process_query: kind is 0!
> 2011-11-01 13:41:48 ERROR: pid 4172: pool_process_query: kind is 0!
> 2011-11-01 13:43:38 ERROR: pid 5250: pool_process_query: kind is 0!
> 2011-11-01 13:44:07 ERROR: pid 5783: pool_process_query: kind is 0!
> 2011-11-01 13:46:42 ERROR: pid 7602: pool_process_query: kind is 0!
> 2011-11-01 13:46:42 ERROR: pid 8614: pool_process_query: kind is 0!
> 2011-11-01 13:55:43 ERROR: pid 10376: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 5427: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10740: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10282: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10419: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10124: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10615: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 4891: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10680: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10134: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 3597: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9571: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10458: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10652: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10658: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9325: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 4234: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10581: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10521: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10330: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10694: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10742: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10535: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 6020: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10508: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10409: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 7296: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10617: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10621: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10590: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 4280: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10494: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9643: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10322: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10625: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10389: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10256: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10169: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10493: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9447: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 7708: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9824: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 3903: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10355: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10726: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 9747: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 8122: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10052: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10697: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10444: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 3776: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10090: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 5142: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 5716: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10136: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10603: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10386: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10181: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10688: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10662: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10454: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10659: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10602: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 7466: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10573: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10474: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 7413: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 6342: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 10696: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 6587: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:43 ERROR: pid 8860: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10718: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 3344: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10799: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 193
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 230
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 255
> 2011-11-01 13:55:44 ERROR: pid 11121: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 268
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 193
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 230
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 255
> 2011-11-01 13:55:44 ERROR: pid 11125: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 268
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 193
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 230
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 255
> 2011-11-01 13:55:44 ERROR: pid 11120: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 268
> 2011-11-01 13:55:44 ERROR: pid 10258: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10563: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9739: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10560: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10007: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10311: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10719: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10700: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10306: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10517: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 4528: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10699: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9920: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10320: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10031: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10582: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10146: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10524: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10214: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 4843: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10473: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9707: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9257: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 6087: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10743: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10608: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10618: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9957: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10498: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10367: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10754: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 4062: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 6540: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 9821: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10586: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 7486: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10104: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10357: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10223: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 6737: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10482: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10656: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10507: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10580: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10298: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10082: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 6892: ProcessFrontendResponse: failed to read
> kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10515: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10712: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10565: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10701: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10518: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10259: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10457: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10335: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10801: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10783: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 10782: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11132: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:2011-11-01 13:55:44 ERROR: pid 10605: ProcessFrontendResponse:
> failed to read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 193
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 230
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 255
> 2011-11-01 13:55:44 ERROR: pid 11130: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 268
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 29
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 53
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 80
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 101
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 132
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 159
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 193
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 230
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 255
> 2011-11-01 13:55:44 ERROR: pid 11126: pool_flush_it: write failed (Broken
> pipe) offset: 0 wlen: 268
> 2011-11-01 13:55:44 ERROR: pid 11134: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 2011-11-01 13:55:44 ERROR: pid 11123: pool_read: read failed (Connection
> reset by peer)
> 2011-11-01 13:55:44 ERROR: pid 11123: ProcessFrontendResponse: failed to
> read kind from frontend. fronend abnormally exited
> 
> Regards,
> Gnanam
> 
> 
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