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+++ b/src/test/crush/CrushWrapper.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2013 Cloudwatt <libre.licensing@cloudwatt.com>
+ * Copyright (C) 2014 Red Hat <contact@redhat.com>
+ *
+ * Author: Loic Dachary <loic@dachary.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library Public License for more details.
+ *
+ */
+
+#include <iostream>
+#include <gtest/gtest.h>
+
+#include "common/ceph_argparse.h"
+#include "common/common_init.h"
+#include "include/stringify.h"
+#include "include/Context.h"
+#include "osd/osd_types.h"
+
+#include "crush/CrushWrapper.h"
+
+class CrushWrapperTest : public ::testing::Test
+{
+public:
+ void SetUp() final
+ {
+ CephInitParameters params(CEPH_ENTITY_TYPE_CLIENT);
+ cct = common_preinit(params, CODE_ENVIRONMENT_UTILITY,
+ CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+ cct->_conf.set_val("debug_crush", "0");
+ }
+ void TearDown() final
+ {
+ cct->put();
+ cct = nullptr;
+ }
+protected:
+ CephContext *cct = nullptr;
+};
+
+TEST_F(CrushWrapperTest, get_immediate_parent) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 1;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ int item = 0;
+
+ pair <string,string> loc;
+ int ret;
+ loc = c->get_immediate_parent(item, &ret);
+ EXPECT_EQ(-ENOENT, ret);
+
+ {
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd.0", loc));
+ }
+
+ loc = c->get_immediate_parent(item, &ret);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ("root", loc.first);
+ EXPECT_EQ("default", loc.second);
+}
+
+TEST_F(CrushWrapperTest, move_bucket) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int root0;
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &root0));
+ EXPECT_EQ(0, c->set_item_name(root0, "root0"));
+
+ {
+ map<string,string> loc;
+ loc["root"] = "root0";
+ loc["host"] = "host0";
+
+ int item = 0;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd.0", loc));
+ }
+ int host0 = c->get_item_id("host0");
+
+ int root1;
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &root1));
+ EXPECT_EQ(0, c->set_item_name(root1, "root1"));
+
+ map<string,string> loc;
+ loc["root"] = "root1";
+
+ // 0 is not a valid bucket number, must be negative
+ EXPECT_EQ(-EINVAL, c->move_bucket(cct, 0, loc));
+ // -100 is not an existing bucket
+ EXPECT_EQ(-ENOENT, c->move_bucket(cct, -100, loc));
+ // move host0 from root0 to root1
+ {
+ pair <string,string> loc;
+ int ret;
+ loc = c->get_immediate_parent(host0, &ret);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ("root", loc.first);
+ EXPECT_EQ("root0", loc.second);
+ }
+ EXPECT_EQ(0, c->move_bucket(cct, host0, loc));
+ {
+ pair <string,string> loc;
+ int ret;
+ loc = c->get_immediate_parent(host0, &ret);
+ EXPECT_EQ(0, ret);
+ EXPECT_EQ("root", loc.first);
+ EXPECT_EQ("root1", loc.second);
+ }
+}
+
+TEST_F(CrushWrapperTest, swap_bucket) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int root;
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW2, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &root));
+ EXPECT_EQ(0, c->set_item_name(root, "root"));
+
+ int a, b;
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW2, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &a));
+ EXPECT_EQ(0, c->set_item_name(a, "a"));
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW2, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &b));
+ EXPECT_EQ(0, c->set_item_name(b, "b"));
+
+ {
+ map<string,string> loc;
+ loc["root"] = "root";
+ EXPECT_EQ(0, c->move_bucket(cct, a, loc));
+ }
+ {
+ map<string,string> loc;
+ loc["root"] = "root";
+ loc["host"] = "a";
+ EXPECT_EQ(0, c->insert_item(cct, 0, 1.0, "osd.0", loc));
+ EXPECT_EQ(0, c->insert_item(cct, 1, 1.0, "osd.1", loc));
+ EXPECT_EQ(0, c->insert_item(cct, 2, 1.0, "osd.2", loc));
+ }
+ {
+ map<string,string> loc;
+ loc["host"] = "b";
+ EXPECT_EQ(0, c->insert_item(cct, 3, 1.0, "osd.3", loc));
+ }
+ ASSERT_EQ(0x30000, c->get_item_weight(a));
+ ASSERT_EQ(string("a"), c->get_item_name(a));
+ ASSERT_EQ(0x10000, c->get_item_weight(b));
+ ASSERT_EQ(string("b"), c->get_item_name(b));
+ ASSERT_EQ(a, c->get_bucket_item(root, 0));
+ ASSERT_EQ(0, c->get_bucket_item(a, 0));
+ ASSERT_EQ(1, c->get_bucket_item(a, 1));
+ ASSERT_EQ(2, c->get_bucket_item(a, 2));
+ ASSERT_EQ(3, c->get_bucket_item(b, 0));
+
+ // check if it can swap parent with child
+ ASSERT_EQ(-EINVAL, c->swap_bucket(cct, root, a));
+
+ c->swap_bucket(cct, a, b);
+ ASSERT_EQ(0x30000, c->get_item_weight(b));
+ ASSERT_EQ(string("a"), c->get_item_name(b));
+ ASSERT_EQ(0x10000, c->get_item_weight(a));
+ ASSERT_EQ(string("b"), c->get_item_name(a));
+ ASSERT_EQ(a, c->get_bucket_item(root, 0));
+ ASSERT_EQ(0, c->get_bucket_item(b, 0));
+ ASSERT_EQ(1, c->get_bucket_item(b, 1));
+ ASSERT_EQ(2, c->get_bucket_item(b, 2));
+ ASSERT_EQ(3, c->get_bucket_item(a, 0));
+}
+
+TEST_F(CrushWrapperTest, rename_bucket_or_item) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int root0;
+ EXPECT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &root0));
+ EXPECT_EQ(0, c->set_item_name(root0, "root0"));
+
+ int item = 0;
+ {
+ map<string,string> loc;
+ loc["root"] = "root0";
+ loc["host"] = "host0";
+
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd.0", loc));
+ }
+ item++;
+ {
+ map<string,string> loc;
+ loc["root"] = "root0";
+ loc["host"] = "host1";
+
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd.1", loc));
+ }
+
+ stringstream ss;
+ EXPECT_EQ(-EINVAL, c->can_rename_item("host0", "????", &ss));
+ EXPECT_EQ(-EINVAL, c->rename_item("host0", "????", &ss));
+ EXPECT_EQ(-EINVAL, c->can_rename_bucket("host0", "????", &ss));
+ EXPECT_EQ(-EINVAL, c->rename_bucket("host0", "????", &ss));
+
+ EXPECT_EQ(-EEXIST, c->can_rename_item("host0", "host1", &ss));
+ EXPECT_EQ(-EEXIST, c->rename_item("host0", "host1", &ss));
+ EXPECT_EQ(-EEXIST, c->can_rename_bucket("host0", "host1", &ss));
+ EXPECT_EQ(-EEXIST, c->rename_bucket("host0", "host1", &ss));
+
+ EXPECT_EQ(-EALREADY, c->can_rename_item("gone", "host1", &ss));
+ EXPECT_EQ(-EALREADY, c->rename_item("gone", "host1", &ss));
+ EXPECT_EQ(-EALREADY, c->can_rename_bucket("gone", "host1", &ss));
+ EXPECT_EQ(-EALREADY, c->rename_bucket("gone", "host1", &ss));
+
+ EXPECT_EQ(-ENOENT, c->can_rename_item("doesnotexist", "somethingelse", &ss));
+ EXPECT_EQ(-ENOENT, c->rename_item("doesnotexist", "somethingelse", &ss));
+ EXPECT_EQ(-ENOENT, c->can_rename_bucket("doesnotexist", "somethingelse", &ss));
+ EXPECT_EQ(-ENOENT, c->rename_bucket("doesnotexist", "somethingelse", &ss));
+
+ EXPECT_EQ(-ENOTDIR, c->can_rename_bucket("osd.1", "somethingelse", &ss));
+ EXPECT_EQ(-ENOTDIR, c->rename_bucket("osd.1", "somethingelse", &ss));
+
+ int host0id = c->get_item_id("host0");
+ EXPECT_EQ(0, c->rename_bucket("host0", "host0renamed", &ss));
+ EXPECT_EQ(host0id, c->get_item_id("host0renamed"));
+
+ int osd0id = c->get_item_id("osd0");
+ EXPECT_EQ(0, c->rename_item("osd.0", "osd0renamed", &ss));
+ EXPECT_EQ(osd0id, c->get_item_id("osd0renamed"));
+}
+
+TEST_F(CrushWrapperTest, check_item_loc) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+ int item = 0;
+ float expected_weight = 1.0;
+
+ // fail if loc is empty
+ {
+ float weight;
+ map<string,string> loc;
+ EXPECT_FALSE(c->check_item_loc(cct, item, loc, &weight));
+ }
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ // fail because the item is not found at the specified location
+ {
+ float weight;
+ map<string,string> loc;
+ loc["root"] = "default";
+ EXPECT_FALSE(c->check_item_loc(cct, item, loc, &weight));
+ }
+ // fail because the bucket name does not match an existing bucket
+ {
+ float weight;
+ map<string,string> loc;
+ loc["root"] = "default";
+ const string HOST("host0");
+ loc["host"] = HOST;
+ EXPECT_FALSE(c->check_item_loc(cct, item, loc, &weight));
+ }
+ const string OSD("osd.0");
+ {
+ map<string,string> loc;
+ loc["root"] = "default";
+ EXPECT_EQ(0, c->insert_item(cct, item, expected_weight,
+ OSD, loc));
+ }
+ // fail because osd.0 is not a bucket and must not be in loc, in
+ // addition to being of the wrong type
+ {
+ float weight;
+ map<string,string> loc;
+ loc["root"] = "osd.0";
+ EXPECT_FALSE(c->check_item_loc(cct, item, loc, &weight));
+ }
+ // succeed and retrieves the expected weight
+ {
+ float weight;
+ map<string,string> loc;
+ loc["root"] = "default";
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+ EXPECT_EQ(expected_weight, weight);
+ }
+}
+
+TEST_F(CrushWrapperTest, update_item) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ const string HOST0("host0");
+ int host0;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &host0);
+ c->set_item_name(host0, HOST0);
+
+ const string HOST1("host1");
+ int host1;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &host1);
+ c->set_item_name(host1, HOST1);
+
+ int item = 0;
+
+ // fail if invalid names anywhere in loc
+ {
+ map<string,string> loc;
+ loc["rack"] = "\001";
+ EXPECT_EQ(-EINVAL, c->update_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ // fail if invalid item name
+ {
+ map<string,string> loc;
+ EXPECT_EQ(-EINVAL, c->update_item(cct, item, 1.0,
+ "\005", loc));
+ }
+ const string OSD0("osd.0");
+ const string OSD1("osd.1");
+ float original_weight = 1.0;
+ float modified_weight = 2.0;
+ float weight;
+
+ map<string,string> loc;
+ loc["root"] = "default";
+ loc["host"] = HOST0;
+ EXPECT_GE(0.0, c->get_item_weightf(host0));
+ EXPECT_EQ(0, c->insert_item(cct, item, original_weight,
+ OSD0, loc));
+
+ // updating nothing changes nothing
+ EXPECT_EQ(OSD0, c->get_item_name(item));
+ EXPECT_EQ(original_weight, c->get_item_weightf(item));
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+ EXPECT_EQ(0, c->update_item(cct, item, original_weight,
+ OSD0, loc));
+ EXPECT_EQ(OSD0, c->get_item_name(item));
+ EXPECT_EQ(original_weight, c->get_item_weightf(item));
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+
+ // update the name and weight of the item but not the location
+ EXPECT_EQ(OSD0, c->get_item_name(item));
+ EXPECT_EQ(original_weight, c->get_item_weightf(item));
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+ EXPECT_EQ(1, c->update_item(cct, item, modified_weight,
+ OSD1, loc));
+ EXPECT_EQ(OSD1, c->get_item_name(item));
+ EXPECT_EQ(modified_weight, c->get_item_weightf(item));
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+ c->set_item_name(item, OSD0);
+ c->adjust_item_weightf(cct, item, original_weight);
+
+ // update the name and weight of the item and change its location
+ map<string,string> other_loc;
+ other_loc["root"] = "default";
+ other_loc["host"] = HOST1;
+
+ EXPECT_EQ(OSD0, c->get_item_name(item));
+ EXPECT_EQ(original_weight, c->get_item_weightf(item));
+ EXPECT_TRUE(c->check_item_loc(cct, item, loc, &weight));
+ EXPECT_FALSE(c->check_item_loc(cct, item, other_loc, &weight));
+ EXPECT_EQ(1, c->update_item(cct, item, modified_weight,
+ OSD1, other_loc));
+ EXPECT_EQ(OSD1, c->get_item_name(item));
+ EXPECT_EQ(modified_weight, c->get_item_weightf(item));
+ EXPECT_FALSE(c->check_item_loc(cct, item, loc, &weight));
+ EXPECT_TRUE(c->check_item_loc(cct, item, other_loc, &weight));
+}
+
+TEST_F(CrushWrapperTest, adjust_item_weight) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ const string HOST0("host0");
+ int host0;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &host0);
+ c->set_item_name(host0, HOST0);
+
+ const string FAKE("fake");
+ int hostfake;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &hostfake);
+ c->set_item_name(hostfake, FAKE);
+
+ int item = 0;
+
+ // construct crush map
+
+ {
+ map<string,string> loc;
+ loc["host"] = "host0";
+ float host_weight = 2.0;
+ int bucket_id = 0;
+
+ item = 0;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ item = 1;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+
+ bucket_id = c->get_item_id("host0");
+ EXPECT_EQ(true, c->bucket_exists(bucket_id));
+ EXPECT_EQ(host_weight, c->get_bucket_weightf(bucket_id));
+
+ map<string,string> bloc;
+ bloc["root"] = "default";
+ EXPECT_EQ(0, c->insert_item(cct, host0, host_weight,
+ HOST0, bloc));
+ }
+
+ {
+ map<string,string> loc;
+ loc["host"] = "fake";
+ float host_weight = 2.0;
+ int bucket_id = 0;
+
+ item = 0;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ item = 1;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+
+ bucket_id = c->get_item_id("fake");
+ EXPECT_EQ(true, c->bucket_exists(bucket_id));
+ EXPECT_EQ(host_weight, c->get_bucket_weightf(bucket_id));
+
+ map<string,string> bloc;
+ bloc["root"] = "default";
+ EXPECT_EQ(0, c->insert_item(cct, hostfake, host_weight,
+ FAKE, bloc));
+ }
+
+ //
+ // When there is:
+ //
+ // default --> host0 --> osd.0 1.0
+ // | |
+ // | +-> osd.1 1.0
+ // |
+ // +-> fake --> osd.0 1.0
+ // |
+ // +-> osd.1 1.0
+ //
+ // Trying to adjust osd.0 weight to 2.0 in all buckets
+ // Trying to adjust osd.1 weight to 2.0 in host=fake
+ //
+ // So the crush map will be:
+ //
+ // default --> host0 --> osd.0 2.0
+ // | |
+ // | +-> osd.1 1.0
+ // |
+ // +-> fake --> osd.0 2.0
+ // |
+ // +-> osd.1 2.0
+ //
+
+ float original_weight = 1.0;
+ float modified_weight = 2.0;
+ map<string,string> loc_one, loc_two;
+ loc_one["host"] = "host0";
+ loc_two["host"] = "fake";
+
+ item = 0;
+ EXPECT_EQ(2, c->adjust_item_weightf(cct, item, modified_weight));
+ EXPECT_EQ(modified_weight, c->get_item_weightf_in_loc(item, loc_one));
+ EXPECT_EQ(modified_weight, c->get_item_weightf_in_loc(item, loc_two));
+
+ item = 1;
+ EXPECT_EQ(1, c->adjust_item_weightf_in_loc(cct, item, modified_weight, loc_two));
+ EXPECT_EQ(original_weight, c->get_item_weightf_in_loc(item, loc_one));
+ EXPECT_EQ(modified_weight, c->get_item_weightf_in_loc(item, loc_two));
+}
+
+TEST_F(CrushWrapperTest, adjust_subtree_weight) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ const string HOST0("host0");
+ int host0;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &host0);
+ c->set_item_name(host0, HOST0);
+
+ const string FAKE("fake");
+ int hostfake;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &hostfake);
+ c->set_item_name(hostfake, FAKE);
+
+ int item = 0;
+
+ // construct crush map
+
+ {
+ map<string,string> loc;
+ loc["host"] = "host0";
+ float host_weight = 2.0;
+ int bucket_id = 0;
+
+ item = 0;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ item = 1;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+
+ bucket_id = c->get_item_id("host0");
+ EXPECT_EQ(true, c->bucket_exists(bucket_id));
+ EXPECT_EQ(host_weight, c->get_bucket_weightf(bucket_id));
+
+ map<string,string> bloc;
+ bloc["root"] = "default";
+ EXPECT_EQ(0, c->insert_item(cct, host0, host_weight,
+ HOST0, bloc));
+ }
+
+ {
+ map<string,string> loc;
+ loc["host"] = "fake";
+ float host_weight = 2.0;
+ int bucket_id = 0;
+
+ item = 0;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ item = 1;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+
+ bucket_id = c->get_item_id("fake");
+ EXPECT_EQ(true, c->bucket_exists(bucket_id));
+ EXPECT_EQ(host_weight, c->get_bucket_weightf(bucket_id));
+
+ map<string,string> bloc;
+ bloc["root"] = "default";
+ EXPECT_EQ(0, c->insert_item(cct, hostfake, host_weight,
+ FAKE, bloc));
+ }
+
+ //cout << "--------before---------" << std::endl;
+ //c->dump_tree(&cout, NULL);
+ ASSERT_EQ(c->get_bucket_weight(host0), 131072);
+ ASSERT_EQ(c->get_bucket_weight(rootno), 262144);
+
+ int r = c->adjust_subtree_weightf(cct, host0, 2.0);
+ ASSERT_EQ(r, 2); // 2 items changed
+
+ //cout << "--------after---------" << std::endl;
+ //c->dump_tree(&cout, NULL);
+
+ ASSERT_EQ(c->get_bucket_weight(host0), 262144);
+ ASSERT_EQ(c->get_item_weight(host0), 262144);
+ ASSERT_EQ(c->get_bucket_weight(rootno), 262144 + 131072);
+}
+
+TEST_F(CrushWrapperTest, insert_item) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, "default");
+
+ int item = 0;
+
+ // invalid names anywhere in loc trigger an error
+ {
+ map<string,string> loc;
+ loc["host"] = "\001";
+ EXPECT_EQ(-EINVAL, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+
+ // insert an item in an existing bucket
+ {
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ item++;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ int another_item = item + 1;
+ EXPECT_EQ(-EEXIST, c->insert_item(cct, another_item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ // implicit creation of a bucket
+ {
+ string name = "NAME";
+ map<string,string> loc;
+ loc["root"] = "default";
+ loc["host"] = name;
+
+ item++;
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ // adding to an existing item name that is not associated with a bucket
+ {
+ string name = "ITEM_WITHOUT_BUCKET";
+ map<string,string> loc;
+ loc["root"] = "default";
+ loc["host"] = name;
+ item++;
+ c->set_item_name(item, name);
+
+ item++;
+ EXPECT_EQ(-EINVAL, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ //
+ // When there is:
+ //
+ // default --> host0 --> item
+ //
+ // Trying to insert the same item higher in the hirarchy will fail
+ // because it would create a loop.
+ //
+ // default --> host0 --> item
+ // |
+ // +-> item
+ //
+ {
+ item++;
+ {
+ map<string,string> loc;
+ loc["root"] = "default";
+ loc["host"] = "host0";
+
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ {
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ EXPECT_EQ(-EINVAL, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ }
+ //
+ // When there is:
+ //
+ // default --> host0
+ //
+ // Trying to insert default under host0 must fail
+ // because it would create a loop.
+ //
+ // default --> host0 --> default
+ //
+ {
+ map<string,string> loc;
+ loc["host"] = "host0";
+
+ EXPECT_EQ(-ELOOP, c->insert_item(cct, rootno, 1.0,
+ "default", loc));
+ }
+ // fail when mapping a bucket to the wrong type
+ {
+ // create an OSD bucket
+ int osdno;
+ int r = c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ 10, 0, NULL, NULL, &osdno);
+ ASSERT_EQ(0, r);
+ c->set_item_name(osdno, "myosd");
+ map<string,string> loc;
+ loc["root"] = "default";
+ // wrongfully pretend the osd is of type host
+ loc["host"] = "myosd";
+
+ item++;
+ EXPECT_EQ(-EINVAL, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+ // fail when no location
+ {
+ map<string,string> loc;
+ item++;
+ EXPECT_EQ(-EINVAL, c->insert_item(cct, item, 1.0,
+ "osd." + stringify(item), loc));
+ }
+}
+
+TEST_F(CrushWrapperTest, remove_item) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 2;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int HOST_TYPE = 1;
+ c->set_type_name(HOST_TYPE, "host");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ {
+ int root;
+ ASSERT_EQ(0, c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &root));
+ c->set_item_name(root, "root0");
+ }
+
+ {
+ int host;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ HOST_TYPE, 0, NULL, NULL, &host);
+ c->set_item_name(host, "host0");
+ }
+
+ const int num_osd = 12;
+ {
+ map<string, string> loc = {{"root", "root0"},
+ {"host", "host0"}};
+ string name{"osd."};
+ for (int item = 0; item < num_osd; item++) {
+ ASSERT_EQ(0, c->insert_item(cct, item, 1.0,
+ name + to_string(item), loc));
+ }
+ }
+ const int item_to_remove = num_osd / 2;
+ map<string, string> loc;
+ loc.insert(c->get_immediate_parent(item_to_remove));
+ ASSERT_EQ(0, c->remove_item(cct, item_to_remove, true));
+ float weight;
+ EXPECT_FALSE(c->check_item_loc(cct, item_to_remove, loc, &weight));
+}
+
+TEST_F(CrushWrapperTest, item_bucket_names) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+ int index = 123;
+ string name = "NAME";
+ EXPECT_EQ(-EINVAL, c->set_item_name(index, "\001"));
+ EXPECT_EQ(0, c->set_item_name(index, name));
+ EXPECT_TRUE(c->name_exists(name));
+ EXPECT_TRUE(c->item_exists(index));
+ EXPECT_EQ(index, c->get_item_id(name));
+ EXPECT_EQ(name, c->get_item_name(index));
+}
+
+TEST_F(CrushWrapperTest, bucket_types) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+ int index = 123;
+ string name = "NAME";
+ c->set_type_name(index, name);
+ EXPECT_EQ(1, c->get_num_type_names());
+ EXPECT_EQ(index, c->get_type_id(name));
+ EXPECT_EQ(name, c->get_type_name(index));
+}
+
+TEST_F(CrushWrapperTest, is_valid_crush_name) {
+ EXPECT_TRUE(CrushWrapper::is_valid_crush_name("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012456789-_"));
+ EXPECT_FALSE(CrushWrapper::is_valid_crush_name(""));
+ EXPECT_FALSE(CrushWrapper::is_valid_crush_name("\001"));
+}
+
+TEST_F(CrushWrapperTest, is_valid_crush_loc) {
+ map<string,string> loc;
+ EXPECT_TRUE(CrushWrapper::is_valid_crush_loc(cct, loc));
+ loc["good"] = "better";
+ EXPECT_TRUE(CrushWrapper::is_valid_crush_loc(cct, loc));
+ {
+ map<string,string> loc;
+ loc["\005"] = "default";
+ EXPECT_FALSE(CrushWrapper::is_valid_crush_loc(cct, loc));
+ }
+ {
+ map<string,string> loc;
+ loc["host"] = "\003";
+ EXPECT_FALSE(CrushWrapper::is_valid_crush_loc(cct, loc));
+ }
+}
+
+TEST_F(CrushWrapperTest, dump_rules) {
+ std::unique_ptr<CrushWrapper> c(new CrushWrapper);
+
+ const int ROOT_TYPE = 1;
+ c->set_type_name(ROOT_TYPE, "root");
+ const int OSD_TYPE = 0;
+ c->set_type_name(OSD_TYPE, "osd");
+
+ string failure_domain_type("osd");
+ string root_name("default");
+ int rootno;
+ c->add_bucket(0, CRUSH_BUCKET_STRAW, CRUSH_HASH_RJENKINS1,
+ ROOT_TYPE, 0, NULL, NULL, &rootno);
+ c->set_item_name(rootno, root_name);
+
+ int item = 0;
+
+ pair <string,string> loc;
+ int ret;
+ loc = c->get_immediate_parent(item, &ret);
+ EXPECT_EQ(-ENOENT, ret);
+
+ {
+ map<string,string> loc;
+ loc["root"] = root_name;
+
+ EXPECT_EQ(0, c->insert_item(cct, item, 1.0,
+ "osd.0", loc));
+ }
+
+ // no rule by default
+ {
+ Formatter *f = Formatter::create("json-pretty");
+ f->open_array_section("rules");
+ c->dump_rules(f);
+ f->close_section();
+ stringstream ss;
+ f->flush(ss);
+ delete f;
+ EXPECT_EQ("[]\n", ss.str());
+ }
+
+ string name("NAME");
+ int rule = c->add_simple_rule(name, root_name, failure_domain_type, "",
+ "firstn", pg_pool_t::TYPE_ERASURE);
+ EXPECT_EQ(0, rule);
+
+ {
+ Formatter *f = Formatter::create("xml");
+ c->dump_rules(f);
+ stringstream ss;
+ f->flush(ss);
+ delete f;
+ EXPECT_EQ((unsigned)0, ss.str().find("<rule><rule_id>0</rule_id><rule_name>NAME</rule_name>"));
+ }
+
+ {
+ Formatter *f = Formatter::create("xml");
+ c->dump_rule(rule, f);
+ stringstream ss;
+ f->flush(ss);
+ delete f;
+ EXPECT_EQ((unsigned)0, ss.str().find("<rule><rule_id>0</rule_id><rule_name>NAME</rule_name>"));
+ EXPECT_NE(string::npos,
+ ss.str().find("<item_name>default</item_name></step>"));
+ }
+
+ map<int,float> wm;
+ c->get_rule_weight_osd_map(0, &wm);
+ ASSERT_TRUE(wm.size() == 1);
+ ASSERT_TRUE(wm[0] == 1.0);
+}
+
+TEST_F(CrushWrapperTest, distance) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "host");
+ c.set_type_name(2, "rack");
+ c.set_type_name(3, "root");
+ int bno;
+ int r = c.add_bucket(0, CRUSH_BUCKET_STRAW,
+ CRUSH_HASH_DEFAULT, 3, 0, NULL,
+ NULL, &bno);
+ ASSERT_EQ(0, r);
+ ASSERT_EQ(-1, bno);
+ c.set_item_name(bno, "default");
+
+ c.set_max_devices(10);
+
+ //JSONFormatter jf(true);
+
+ map<string,string> loc;
+ loc["host"] = "a1";
+ loc["rack"] = "a";
+ loc["root"] = "default";
+ c.insert_item(cct, 0, 1, "osd.0", loc);
+
+ loc.clear();
+ loc["host"] = "a2";
+ loc["rack"] = "a";
+ loc["root"] = "default";
+ c.insert_item(cct, 1, 1, "osd.1", loc);
+
+ loc.clear();
+ loc["host"] = "b1";
+ loc["rack"] = "b";
+ loc["root"] = "default";
+ c.insert_item(cct, 2, 1, "osd.2", loc);
+
+ loc.clear();
+ loc["host"] = "b2";
+ loc["rack"] = "b";
+ loc["root"] = "default";
+ c.insert_item(cct, 3, 1, "osd.3", loc);
+
+ vector<pair<string,string> > ol;
+ c.get_full_location_ordered(3, ol);
+ ASSERT_EQ(3u, ol.size());
+ ASSERT_EQ(make_pair(string("host"),string("b2")), ol[0]);
+ ASSERT_EQ(make_pair(string("rack"),string("b")), ol[1]);
+ ASSERT_EQ(make_pair(string("root"),string("default")), ol[2]);
+
+ //c.dump(&jf);
+ //jf.flush(cout);
+
+ multimap<string,string> p;
+ p.insert(make_pair("host","b2"));
+ p.insert(make_pair("rack","b"));
+ p.insert(make_pair("root","default"));
+ ASSERT_EQ(3, c.get_common_ancestor_distance(cct, 0, p));
+ ASSERT_EQ(3, c.get_common_ancestor_distance(cct, 1, p));
+ ASSERT_EQ(2, c.get_common_ancestor_distance(cct, 2, p));
+ ASSERT_EQ(1, c.get_common_ancestor_distance(cct, 3, p));
+ ASSERT_EQ(-ENOENT, c.get_common_ancestor_distance(cct, 123, p));
+
+ // make sure a "multipath" location will reflect a minimal
+ // distance for both paths
+ p.insert(make_pair("host","b1"));
+ ASSERT_EQ(1, c.get_common_ancestor_distance(cct, 2, p));
+ ASSERT_EQ(1, c.get_common_ancestor_distance(cct, 3, p));
+}
+
+TEST_F(CrushWrapperTest, choose_args_compat) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "host");
+ c.set_type_name(2, "rack");
+ c.set_type_name(3, "root");
+
+ int weight = 12;
+
+ map<string,string> loc;
+ loc["host"] = "b1";
+ loc["rack"] = "r11";
+ loc["root"] = "default";
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+
+ loc["host"] = "b2";
+ loc["rack"] = "r12";
+ loc["root"] = "default";
+ item = 2;
+ c.insert_item(cct, item, weight, "osd.2", loc);
+
+ ceph_assert(c.add_simple_rule("rule1", "r11", "host", "",
+ "firstn", pg_pool_t::TYPE_ERASURE) >= 0);
+
+ int id = c.get_item_id("b1");
+
+ __u32 weights = 666 * 0x10000;
+ crush_weight_set weight_set;
+ weight_set.size = 1;
+ weight_set.weights = &weights;
+ int maxbuckets = c.get_max_buckets();
+ ceph_assert(maxbuckets > 0);
+ crush_choose_arg choose_args[maxbuckets];
+ memset(choose_args, '\0', sizeof(crush_choose_arg) * maxbuckets);
+ choose_args[-1-id].ids_size = 0;
+ choose_args[-1-id].weight_set_positions = 1;
+ choose_args[-1-id].weight_set = &weight_set;
+ crush_choose_arg_map arg_map;
+ arg_map.size = c.get_max_buckets();
+ arg_map.args = choose_args;
+
+ uint64_t features = CEPH_FEATURE_CRUSH_TUNABLES5|CEPH_FEATURE_INCARNATION_2;
+ int64_t caid = CrushWrapper::DEFAULT_CHOOSE_ARGS;
+
+ // if the client is capable, encode choose_args
+ {
+ c.choose_args[caid] = arg_map;
+ bufferlist bl;
+ c.encode(bl, features|CEPH_FEATURE_CRUSH_CHOOSE_ARGS);
+ auto i = bl.cbegin();
+ CrushWrapper c_new;
+ c_new.decode(i);
+ ASSERT_EQ(1u, c_new.choose_args.size());
+ ASSERT_EQ(1u, c_new.choose_args[caid].args[-1-id].weight_set_positions);
+ ASSERT_EQ(weights, c_new.choose_args[caid].args[-1-id].weight_set[0].weights[0]);
+ ASSERT_EQ(weight, c_new.get_bucket_item_weightf(id, 0));
+ }
+
+ // if the client is not compatible, copy choose_arg in the weights
+ {
+ c.choose_args[caid] = arg_map;
+ bufferlist bl;
+ c.encode(bl, features);
+ c.choose_args.clear();
+ auto i = bl.cbegin();
+ CrushWrapper c_new;
+ c_new.decode(i);
+ ASSERT_EQ(0u, c_new.choose_args.size());
+ ASSERT_EQ((int)weights, c_new.get_bucket_item_weight(id, 0));
+ }
+}
+
+TEST_F(CrushWrapperTest, remove_root) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "host");
+ c.set_type_name(2, "rack");
+ c.set_type_name(3, "root");
+
+ int weight = 1;
+
+ map<string,string> loc;
+ loc["host"] = "b1";
+ loc["rack"] = "r11";
+ loc["root"] = "default";
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+ item = 2;
+ loc["host"] = "b2";
+ loc["rack"] = "r12";
+ loc["root"] = "default";
+ c.insert_item(cct, item, weight, "osd.2", loc);
+
+ ceph_assert(c.add_simple_rule("rule1", "r11", "host", "",
+ "firstn", pg_pool_t::TYPE_ERASURE) >= 0);
+ ASSERT_TRUE(c.name_exists("default"));
+ ASSERT_TRUE(c.name_exists("r11"));
+ ASSERT_TRUE(c.name_exists("r12"));
+ ASSERT_EQ(c.remove_root(cct, c.get_item_id("default")), 0);
+ ASSERT_FALSE(c.name_exists("default"));
+ ASSERT_FALSE(c.name_exists("r11"));
+ ASSERT_FALSE(c.name_exists("r12"));
+}
+
+TEST_F(CrushWrapperTest, trim_roots_with_class) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "root");
+
+ int weight = 1;
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+ int cl = c.get_or_create_class_id("ssd");
+ c.class_map[item] = cl;
+
+
+ int root_id = c.get_item_id("default");
+ int clone_id;
+ map<int32_t, map<int32_t, int32_t>> old_class_bucket;
+ map<int,map<int,vector<int>>> cmap_item_weight; // cargs -> bno -> weights
+ set<int32_t> used_ids;
+
+ ASSERT_EQ(c.device_class_clone(root_id, cl, old_class_bucket, used_ids,
+ &clone_id, &cmap_item_weight), 0);
+
+ ASSERT_TRUE(c.name_exists("default"));
+ ASSERT_TRUE(c.name_exists("default~ssd"));
+ c.trim_roots_with_class(cct);
+ ASSERT_TRUE(c.name_exists("default"));
+ ASSERT_FALSE(c.name_exists("default~ssd"));
+}
+
+TEST_F(CrushWrapperTest, device_class_clone) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "host");
+ c.set_type_name(2, "root");
+
+ map<string,string> loc;
+ loc["host"] = "b1";
+ loc["root"] = "default";
+ int weight = 1;
+
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+ int cl = c.get_or_create_class_id("ssd");
+ c.class_map[item] = cl;
+
+ int item_no_class = 2;
+ c.insert_item(cct, item_no_class, weight, "osd.2", loc);
+
+ c.reweight(cct);
+
+ map<int32_t, map<int32_t, int32_t>> old_class_bucket;
+ map<int,map<int,vector<int>>> cmap_item_weight; // cargs -> bno -> weights
+ set<int32_t> used_ids;
+ int root_id = c.get_item_id("default");
+ int clone_id;
+ ASSERT_EQ(c.device_class_clone(root_id, cl, old_class_bucket, used_ids,
+ &clone_id, &cmap_item_weight), 0);
+ ASSERT_TRUE(c.name_exists("default~ssd"));
+ ASSERT_EQ(clone_id, c.get_item_id("default~ssd"));
+ ASSERT_TRUE(c.subtree_contains(clone_id, item));
+ ASSERT_FALSE(c.subtree_contains(clone_id, item_no_class));
+ ASSERT_TRUE(c.subtree_contains(root_id, item_no_class));
+ ASSERT_EQ(c.get_item_weightf(root_id), 2);
+ ASSERT_EQ(c.get_item_weightf(clone_id), 1);
+ // cloning again does nothing and returns the existing one
+ int other_clone_id;
+ ASSERT_EQ(c.device_class_clone(root_id, cl, old_class_bucket, used_ids,
+ &other_clone_id, &cmap_item_weight), 0);
+ ASSERT_EQ(clone_id, other_clone_id);
+ // invalid arguments
+ ASSERT_EQ(c.device_class_clone(12345, cl, old_class_bucket, used_ids,
+ &other_clone_id, &cmap_item_weight), -ECHILD);
+ ASSERT_EQ(c.device_class_clone(root_id, 12345, old_class_bucket, used_ids,
+ &other_clone_id, &cmap_item_weight), -EBADF);
+}
+
+TEST_F(CrushWrapperTest, split_id_class) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "root");
+
+ int weight = 1;
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+ int class_id = c.get_or_create_class_id("ssd");
+ c.class_map[item] = class_id;
+
+ map<int32_t, map<int32_t, int32_t>> old_class_bucket;
+ map<int,map<int,vector<int>>> cmap_item_weight; // cargs -> bno -> weights
+ set<int32_t> used_ids;
+ int item_id = c.get_item_id("default");
+ int clone_id;
+ ASSERT_EQ(c.device_class_clone(item_id, class_id, old_class_bucket, used_ids,
+ &clone_id, &cmap_item_weight), 0);
+ int retrieved_item_id;
+ int retrieved_class_id;
+ ASSERT_EQ(c.split_id_class(clone_id, &retrieved_item_id, &retrieved_class_id), 0);
+ ASSERT_EQ(item_id, retrieved_item_id);
+ ASSERT_EQ(class_id, retrieved_class_id);
+
+ ASSERT_EQ(c.split_id_class(item_id, &retrieved_item_id, &retrieved_class_id), 0);
+ ASSERT_EQ(item_id, retrieved_item_id);
+ ASSERT_EQ(-1, retrieved_class_id);
+}
+
+TEST_F(CrushWrapperTest, populate_classes) {
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(1, "root");
+
+ int weight = 1;
+ map<string,string> loc;
+ loc["root"] = "default";
+
+ int item = 1;
+ c.insert_item(cct, item, weight, "osd.1", loc);
+ int class_id = c.get_or_create_class_id("ssd");
+ c.class_map[item] = class_id;
+
+ map<int32_t, map<int32_t, int32_t>> old_class_bucket;
+ ASSERT_EQ(c.populate_classes(old_class_bucket), 0);
+
+ ASSERT_TRUE(c.name_exists("default~ssd"));
+
+ old_class_bucket = c.class_bucket;
+ ASSERT_EQ(c.populate_classes(old_class_bucket), 0);
+ ASSERT_EQ(old_class_bucket, c.class_bucket);
+}
+
+TEST_F(CrushWrapperTest, remove_class_name) {
+ CrushWrapper c;
+ c.create();
+
+ ASSERT_EQ(-ENOENT, c.remove_class_name("ssd"));
+ ASSERT_GE(0, c.get_or_create_class_id("ssd"));
+ ASSERT_EQ(0, c.remove_class_name("ssd"));
+ ASSERT_EQ(-ENOENT, c.remove_class_name("ssd"));
+}
+
+TEST_F(CrushWrapperTest, try_remap_rule) {
+ // build a simple 2 level map
+ CrushWrapper c;
+ c.create();
+ c.set_type_name(0, "osd");
+ c.set_type_name(1, "host");
+ c.set_type_name(2, "rack");
+ c.set_type_name(3, "root");
+ int bno;
+ int r = c.add_bucket(0, CRUSH_BUCKET_STRAW2,
+ CRUSH_HASH_DEFAULT, 3, 0, NULL,
+ NULL, &bno);
+ ASSERT_EQ(0, r);
+ ASSERT_EQ(-1, bno);
+ c.set_item_name(bno, "default");
+
+ c.set_max_devices(20);
+
+ //JSONFormatter jf(true);
+
+ map<string,string> loc;
+ loc["host"] = "foo";
+ loc["rack"] = "a";
+ loc["root"] = "default";
+ c.insert_item(cct, 0, 1, "osd.0", loc);
+ c.insert_item(cct, 1, 1, "osd.1", loc);
+ c.insert_item(cct, 2, 1, "osd.2", loc);
+
+ loc.clear();
+ loc["host"] = "bar";
+ loc["rack"] = "a";
+ loc["root"] = "default";
+ c.insert_item(cct, 3, 1, "osd.3", loc);
+ c.insert_item(cct, 4, 1, "osd.4", loc);
+ c.insert_item(cct, 5, 1, "osd.5", loc);
+
+ loc.clear();
+ loc["host"] = "baz";
+ loc["rack"] = "b";
+ loc["root"] = "default";
+ c.insert_item(cct, 6, 1, "osd.6", loc);
+ c.insert_item(cct, 7, 1, "osd.7", loc);
+ c.insert_item(cct, 8, 1, "osd.8", loc);
+
+ loc.clear();
+ loc["host"] = "qux";
+ loc["rack"] = "b";
+ loc["root"] = "default";
+ c.insert_item(cct, 9, 1, "osd.9", loc);
+ c.insert_item(cct, 10, 1, "osd.10", loc);
+ c.insert_item(cct, 11, 1, "osd.11", loc);
+ c.finalize();
+
+ loc.clear();
+ loc["host"] = "bif";
+ loc["rack"] = "c";
+ loc["root"] = "default";
+ c.insert_item(cct, 12, 1, "osd.12", loc);
+ c.insert_item(cct, 13, 1, "osd.13", loc);
+ c.insert_item(cct, 14, 1, "osd.14", loc);
+ c.finalize();
+
+ loc.clear();
+ loc["host"] = "pop";
+ loc["rack"] = "c";
+ loc["root"] = "default";
+ c.insert_item(cct, 15, 1, "osd.15", loc);
+ c.insert_item(cct, 16, 1, "osd.16", loc);
+ c.insert_item(cct, 17, 1, "osd.17", loc);
+ c.finalize();
+
+ //c.dump(&jf);
+ //jf.flush(cout);
+
+ // take + emit
+ {
+ }
+
+ // take + choose device + emit
+ {
+ cout << "take + choose + emit" << std::endl;
+ ostringstream err;
+ int rule = c.add_simple_rule("one", "default", "osd", "",
+ "firstn", 0, &err);
+ ASSERT_EQ(rule, 0);
+
+ vector<int> orig = { 0, 3, 9 };
+ set<int> overfull = { 3 };
+ vector<int> underfull = { 0, 2, 5, 8, 11 };
+ vector<int> more_underfull = {};
+ vector<int> out;
+ int r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(3u, out.size());
+ ASSERT_EQ(0, out[0]);
+ ASSERT_EQ(2, out[1]);
+ ASSERT_EQ(9, out[2]);
+
+ // make sure we cope with dups between underfull and future values in orig
+ underfull = {9, 0, 2, 5};
+ orig = {1, 3, 9};
+
+ r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(3u, out.size());
+ ASSERT_EQ(1, out[0]);
+ ASSERT_EQ(0, out[1]);
+ ASSERT_EQ(9, out[2]);
+ //
+ // Check that more_underfull is used when underfull runs out
+ orig = { 0, 3, 9 };
+ overfull = { 3, 9 };
+ underfull = { 2 };
+ more_underfull = { 5, 8, 11 };
+ r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(3u, out.size());
+ ASSERT_EQ(0, out[0]);
+ ASSERT_EQ(2, out[1]);
+ ASSERT_EQ(5, out[2]);
+ }
+
+ // chooseleaf
+ {
+ cout << "take + chooseleaf + emit" << std::endl;
+ ostringstream err;
+ int rule = c.add_simple_rule("two", "default", "host", "",
+ "firstn", 0, &err);
+ ASSERT_EQ(rule, 1);
+
+ vector<int> orig = { 0, 3, 9 };
+ set<int> overfull = { 3 };
+ vector<int> underfull = { 0, 2, 5, 8, 11 };
+ vector<int> more_underfull = { };
+ vector<int> out;
+ int r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(3u, out.size());
+ ASSERT_EQ(0, out[0]);
+ ASSERT_EQ(5, out[1]);
+ ASSERT_EQ(9, out[2]);
+ }
+
+ // choose + choose
+ {
+ cout << "take + choose + choose + choose + emit" << std::endl;
+ int rule = c.add_rule(2, 5, 0, 1, 10);
+ ASSERT_EQ(2, rule);
+ c.set_rule_step_take(rule, 0, bno);
+ c.set_rule_step_choose_indep(rule, 1, 2, 2);
+ c.set_rule_step_choose_indep(rule, 2, 2, 1);
+ c.set_rule_step_choose_indep(rule, 3, 1, 0);
+ c.set_rule_step_emit(rule, 4);
+
+ vector<int> orig = { 0, 3, 16, 12 };
+ set<int> overfull = { 3, 12 };
+ vector<int> underfull = { 6, 7, 9, 3, 0, 1, 15, 16, 13, 2, 5, 8, 11 };
+ vector<int> more_underfull = { };
+ vector<int> out;
+ int r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(4u, out.size());
+ ASSERT_EQ(0, out[0]);
+ ASSERT_EQ(5, out[1]);
+ ASSERT_EQ(16, out[2]);
+ ASSERT_EQ(13, out[3]);
+
+ orig.pop_back();
+ out.clear();
+ r = c.try_remap_rule(cct, rule, 3,
+ overfull, underfull, more_underfull,
+ orig, &out);
+ cout << orig << " -> r = " << (int)r << " out " << out << std::endl;
+ ASSERT_EQ(r, 0);
+ ASSERT_EQ(3u, out.size());
+ ASSERT_EQ(0, out[0]);
+ ASSERT_EQ(5, out[1]);
+ ASSERT_EQ(16, out[2]);
+ }
+}
+
+// Local Variables:
+// compile-command: "cd ../../../build ; make -j4 unittest_crush_wrapper && valgrind --tool=memcheck bin/unittest_crush_wrapper"
+// End:
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