Dear All, Observation: I have HBase cluster with Kerberos enabled, when the Region Server startups then we observed some 20-30 socket fds are in CLOSE_WAIT state, After that when the Region Server starts opening then the socket fds in CLOSE_WAIT starts increasing gradually (almost same as number of regions opened by the region server) And all these CLOSE_WAIT states are not getting cleared up,
/hbase> lsof -i | grep `jps | grep RegionServer | cut -d " " -f1` java 18028 shankar1 118u IPv6 18552894 0t0 TCP XX-XX-XX-XX:60020 (LISTEN) java 18028 shankar1 160u IPv6 18548520 0t0 TCP *:60030 (LISTEN) java 18028 shankar1 167u IPv6 18548522 0t0 TCP XX-XX-XX-XX:42534-> XX-XX-XX-XX:eforward (ESTABLISHED) java 18028 shankar1 172u IPv6 18552916 0t0 TCP XX-XX-XX-XX:42535-> XX-XX-XX-XX:eforward (ESTABLISHED) java 18028 shankar1 173u IPv6 18551227 0t0 TCP XX-XX-XX-XX:49646->XX-XX-XX-XX:60000 (ESTABLISHED) java 18028 shankar1 178u IPv6 18551237 0t0 TCP XX-XX-XX-XX:62668->XX-XX-XX-XX:busboy (ESTABLISHED) java 18028 shankar1 185u IPv6 18548549 0t0 TCP XX-XX-XX-XX:21856-> XX-XX-XX-XX:eforward (ESTABLISHED) java 18028 shankar1 187u IPv6 18548558 0t0 TCP XX-XX-XX-XX:62673->XX-XX-XX-XX:busboy (ESTABLISHED) java 18028 shankar1 188u IPv6 18601323 0t0 TCP XX-XX-XX-XX:63168->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 189u IPv6 18601322 0t0 TCP XX-XX-XX-XX:63167->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 190u IPv6 18601324 0t0 TCP XX-XX-XX-XX:63169->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 191r IPv6 18592423 0t0 TCP XX-XX-XX-XX:63087->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 193u IPv6 18593210 0t0 TCP XX-XX-XX-XX:63090->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 194u IPv6 18548560 0t0 TCP XX-XX-XX-XX:62675->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 195u IPv6 18592428 0t0 TCP XX-XX-XX-XX:63093->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 196u IPv6 18593218 0t0 TCP XX-XX-XX-XX:63096->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 197u IPv6 18591423 0t0 TCP XX-XX-XX-XX:63105->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 201u IPv6 18592431 0t0 TCP XX-XX-XX-XX:63099->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 202u IPv6 18592433 0t0 TCP XX-XX-XX-XX:63102->XX-XX-XX-XX:busboy (CLOSE_WAIT) java 18028 shankar1 203u IPv6 18552317 0t0 TCP XX-XX-XX-XX:62681->XX-XX-XX-XX:busboy (CLOSE_WAIT) ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ any input or suggestion will be helpful, or is it a bug. Regards -Shankar [X] This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! [X]
