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From 6c3b21ce5bb76b35856a6c270eb65d11f869061f Mon Sep 17 00:00:00 2001
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From: Sanju Rakonde <srakonde@redhat.com>
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Date: Fri, 26 Jun 2020 12:10:31 +0530
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Subject: [PATCH 484/511] glusterd: rebalance status displays stats as 0 after
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reboot
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problem: while the rebalance is in progress, if a node is
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rebooted rebalance v status shows the stats of this node as
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0 once the node is back.
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Reason: when the node is rebooted, once it is back
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glusterd_volume_defrag_restart() starts the rebalance and
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creates the rpc. but due to some race, rebalance process is
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sending disconnect event, so rpc object is getting destroyed. As
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the rpc object is null, request for fetching the latest stats is
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not sent to rebalance process. and stats are shows as default values
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which is 0.
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Solution: When the rpc object null, we should create the rpc if the
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rebalance process is up. so that request can be sent to rebalance
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process using the rpc.
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>fixes: #1339
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>Change-Id: I1c7533fedd17dcaffc0f7a5a918c87356133a81c
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>Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
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Upstream Patch : https://review.gluster.org/c/glusterfs/+/24641
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BUG: 1832306
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Change-Id: I1c7533fedd17dcaffc0f7a5a918c87356133a81c
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Signed-off-by: Srijan Sivakumar <ssivakum@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/220369
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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xlators/mgmt/glusterd/src/glusterd-syncop.c | 29 ++++++++++++++++++++---------
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1 file changed, 20 insertions(+), 9 deletions(-)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-syncop.c b/xlators/mgmt/glusterd/src/glusterd-syncop.c
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index c78983a..df78fef 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-syncop.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-syncop.c
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@@ -1693,6 +1693,7 @@ gd_brick_op_phase(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict,
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rpc_clnt_t *rpc = NULL;
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dict_t *rsp_dict = NULL;
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int32_t cmd = GF_OP_CMD_NONE;
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+ glusterd_volinfo_t *volinfo = NULL;
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this = THIS;
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rsp_dict = dict_new();
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@@ -1724,18 +1725,28 @@ gd_brick_op_phase(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict,
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cds_list_for_each_entry_safe(pending_node, tmp, &selected, list)
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{
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rpc = glusterd_pending_node_get_rpc(pending_node);
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+ /* In the case of rebalance if the rpc object is null, we try to
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+ * create the rpc object. if the rebalance daemon is down, it returns
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+ * -1. otherwise, rpc object will be created and referenced.
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+ */
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if (!rpc) {
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- if (pending_node->type == GD_NODE_REBALANCE) {
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- ret = 0;
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- glusterd_defrag_volume_node_rsp(req_dict, NULL, op_ctx);
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+ if (pending_node->type == GD_NODE_REBALANCE && pending_node->node) {
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+ volinfo = pending_node->node;
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+ ret = glusterd_rebalance_rpc_create(volinfo);
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+ if (ret) {
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+ ret = 0;
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+ glusterd_defrag_volume_node_rsp(req_dict, NULL, op_ctx);
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+ goto out;
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+ } else {
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+ rpc = glusterd_defrag_rpc_get(volinfo->rebal.defrag);
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+ }
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+ } else {
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+ ret = -1;
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+ gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_RPC_FAILURE,
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+ "Brick Op failed "
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+ "due to rpc failure.");
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goto out;
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}
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-
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- ret = -1;
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- gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_RPC_FAILURE,
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- "Brick Op failed "
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- "due to rpc failure.");
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- goto out;
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}
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/* Redirect operation to be detach tier via rebalance flow. */
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--
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1.8.3.1
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