From f2e7b6800b812e8bbc9bdbcea4c400a1784e31dc Mon Sep 17 00:00:00 2001 From: Poornima G Date: Fri, 22 Jan 2016 11:44:21 -0500 Subject: glusterd: add a cli command to trigger a statedump on a client With this, we will be able to trigger statedumps on remote Gluster clients, mainly targetted for applications using libgfapi. Design: SIGUSR signal is the most comman way of taking a statedump in Gluster. But it cannot be used for libgfapi based processes, as the process loading the library might have already consumed SIGUSR signal. Hence going by the command way. One has to issue a Gluster command to initiate a statedump on the libgfapi based client. The command takes hostname and PID as an argument. All the glusterds in the cluster, check if they are connected to the specified hostname, and send an RPC request to all the connected clients from that hostname (via the mgmt connection). URL: http://review.gluster.org/16357 Change-Id: Icbe4d2f026b32a2c7d5535e1bfb2cdaaff042e91 BUG: 1169302 Signed-off-by: Poornima G [ndevos: minor fixes and split patch in smaller pieces] Reviewed-on: https://review.gluster.org/9228 Reviewed-by: Niels de Vos Tested-by: Niels de Vos Smoke: Gluster Build System NetBSD-regression: NetBSD Build System Reviewed-by: Kaleb KEITHLEY CentOS-regression: Gluster Build System Reviewed-by: Samikshan Bairagya --- rpc/rpc-lib/src/protocol-common.h | 1 + rpc/rpc-lib/src/rpc-transport.h | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'rpc/rpc-lib/src') diff --git a/rpc/rpc-lib/src/protocol-common.h b/rpc/rpc-lib/src/protocol-common.h index 89a7bb0bcde..69a39b2c7a4 100644 --- a/rpc/rpc-lib/src/protocol-common.h +++ b/rpc/rpc-lib/src/protocol-common.h @@ -146,6 +146,7 @@ enum gf_cbk_procnum { GF_CBK_CHILD_UP, GF_CBK_CHILD_DOWN, GF_CBK_RECALL_LEASE, + GF_CBK_STATEDUMP, GF_CBK_MAXVALUE, }; diff --git a/rpc/rpc-lib/src/rpc-transport.h b/rpc/rpc-lib/src/rpc-transport.h index 717c40af13a..e3b630e2919 100644 --- a/rpc/rpc-lib/src/rpc-transport.h +++ b/rpc/rpc-lib/src/rpc-transport.h @@ -70,7 +70,7 @@ struct peer_info { uint32_t max_op_version; uint32_t min_op_version; //Volume mounted by client - char volname[1024]; + char volname[NAME_MAX]; }; typedef struct peer_info peer_info_t; -- cgit